HomeMy WebLinkAboutOrd 1124 Local Energy Efficiency Standards* Passed Ord. No. 1124 to second reading, subject
to giving serious consideration to the suggested
"GreenBuilder" designation.
MEETING DATE /. /`
D CO> INUED TO
CITY OF PALM D: ;TO 2ND READING /= //- O7
CITY MANAGED r Fir.'F
STAFF REPORT
TO: Honorable Mayor and City Council Members
SUBJECT: ENERGY CONSERVATION REQUIREMENTS FOR NEW
CONSTRUCTION
SUBMITTED BY: Patrick Conlon, Director of Office of Energy Management
DATE: December 14, 2006
ATTACHMENTS: 1) Ordinance No. 1124
2) Cost effective calculation by Gabel and Associates
3) California Energy Commission (CEC) application to amend 2005
California Energy Efficiency Standards
RECOMMENDATION
By Minute Motion:
Pass Ordinance No.1124 to second reading.
EXECUTIVE SUMMARY
This proposed Energy Conservation Ordinance affects all new residential and
commercial buildings in the City of Palm Desert. This ordinance will result in an energy
savings of at least 10% above the minimum State standards, with large homes (over
4,000 square feet) attaining energy savings of at least 15%. The cost to developers for
implementing these requirements range from approximately $50 to $1,200 per home,
depending on design and the options selected by the designer. The exception to this
cost would be on at least one sales model home where a small 2kW photovoltaic (PV)
solar system is mandatory. The cost for this photovoltaic (PV) system would be
approximately $8,000 to $9,000 for this single sales model, after California and Federal
rebates.
This ordinance has been reviewed and unanimously approved by the California Energy
Commission on October 30, 2006 for adoption at the local level.
Staff has met with Fred Bell of the Building Industry Association (BIA) and have
obtained support for this proposed ordinance with the provision that at a future date
staff will review and determine if the BIA's Green Building Program is appropriate for
future codification in the Palm Desert Municipal Code.
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Staff Report
Energy Conservation Requirements for New Construction
December 14, 2006
Page2of3
DISCUSSION
The intent behind this proposed ordinance is to get all new construction in compliance
with Palm Desert's stated energy conservation goals of 30% reduction citywide,
adjusted for growth, and 30% reduction of our on -peak demand loads within 5 years. To
measure our achievement, the base year for our citywide energy usage was established
in 2005. Effective November of 2005, the State of California adopted more stringent
energy conservation standards for new construction. These new State energy standards
increased efficiency requirements by 12% to 15% in all new construction.
This proposed ordinance before you tonight will raise that standard by an additional
10% to 15% above the new 2005 California Energy Standards, thus meeting the City's
energy goals. It is designed to be flexible in allowing the designer to choose two paths
to compliance: prescriptive or performance, with the exception of the mandatory
requirements set forth in Section 22.30.030.
The prescriptive approach to documenting compliance with this ordinance is shown in
Section 22.30.040 and applies to commercial and hotel/motel occupancies. This
prescriptive requirement gives energy conservation goals in 3 areas: the building
envelope, the lighting system, and the mechanical system.
If the designer so chooses (i.e. optional), they can follow the performance approach to
showing compliance with this ordinance. The performance approach is applicable to all
occupancies, mandatory on residential, and optional to commercial hotel/motel
occupancies. The performance approach is based on the allowed Energy Budget for the
particular building. This budget is expressed in how many BTU's (British Thermal Units)
per square foot a building may consume over a period of a year, expressed as
Kbtu/sq.ft.
This ordinance requires all buildings to consume 10% less energy than allowed by State
law (i.e. a 10% savings in energy). Homes over 4,000 square feet are required to
consume 15% less energy than what is allowed by State law.
Why are large homes treated differently? Large homes are allowed by the 2005
California Energy Standards to use more energy than smaller homes. The State allows
a higher Energy Budget in cases equivalent to several smaller homes.
On other than one developer selected sales models where a small 2,000-watt
photovoltaic system is required, this ordinance does not require solar photovoltaic (PV)
systems. What this ordinance does is allow the designer to calculate the energy savings
of a photovoltaic system and apply that savings to the Energy Budget of the building. It
is the designer's option to utilize a solar photovoltaic system to achieve compliance with
this ordinance. Many other avenues other than PV solar are available to obtain this 10%
or 15% energy savings. Additional insulation in the walls and ceilings, high performance
G 1CntyMgrUane StanleylWc d Files1Pat ConlonlRepats B MemoslEnergyConservabonRequirements 12-14-06 doc
Staff Report
Energy Conservation Requirements for New Construction
December 14, 2006
Page3of3
windows and glass doors, high efficiency air conditioning and heating systems, are but
a few.
The California Energy Commission requires that this local ordinance have an expiration
date, which is the same date that the new 2008 California Energy Standards become
effective statewide, tentatively scheduled for June 2009.
If you have any questions, please contact Pat Conlon at extension 386.
Submitted by: Approved by:
--.--Ctlitlir-ALO---C3AA1-6.--
Pat-ick Conlon Carlos Ortega(%
Director of Office of Energy Management City Manager
G IC,tyMgrUene StenleylWord Files1Pet Con/onlReports & MemoslEnergyConservetionRequirements 12-14-06.doc
ORDINANCE NO. 1124
AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF PALM DESERT,
CALIFORNIA, ADOPTING LOCAL ENERGY EFFICIENCY STANDARDS FOR
BUILDINGS COVERED BY THE 2005 CALIFORNIA BUILDING ENERGY
EFFICIENCY STANDARDS
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF PALM DESERT,
CALIFORNIA, DOES HEREBY ORDAIN AS FOLLOWS:
Section 1. Chapter 24.30 be and the same is hereby added to the Code of the
City of Palm Desert, California, as follows:
Section 24.30.010 Title. Purpose and Intent. This Ordinance sets forth
minimum energy efficiency standards within the City of Palm Desert for all new
construction, including remodels, additions, alterations, condominium conversions and
tenant improvements.
(a) Background. All residential and nonresidential development must meet or exceed the
energy requirements contained in the 2005 California Building Energy Efficiency
Standards, including California Code of Regulations, Title 24, Parts 1 and 6 (the
"Standards"). This Ordinance requires the application of the Standards, including but not
limited to the definitions, procedures, forms, manuals and alternative calculations
methods ("ACMs") associated with the Standards. In addition, this Ordinance amends
the Standards as described herein.
(b) Buildings Covered. The provisions of this Ordinance shall apply to all new residential
construction, remodels, additions and alterations, and to all new nonresidential
construction, remodels, additions, alterations and tenant improvements for which a
building permit has been applied for and accepted as complete by the building
department on or after the effective date of this Ordinance.
Section 24.30.015 Enforcement. The Building Official for the City of Palm
Desert shall be charged with enforcing the provisions of this Ordinance.
Section 24.30.020 Definitions.
CONDOMINIUM CONVERSION is defined in Section 25.112 of the Palm Desert
Municipal Code.
PRODUCTION HOME means a dwelling constructed as part of a residential
development of at least five homes per project that is intended or offered for sale.
Palm Desert Energy Ordinance 1214106 Page 1
PV CREDIT is the energy credit applicable to the Proposed Design for a solar PV energy
system that is capable of generating electricity from sunlight and supplying it directly to
the building; and is connected, through a reversible meter, to the utility grid.
The methodology used to calculate the PV credit shall be the Clean Power Estimator at:
http://www.consumerenergvicenter.orq/renewables/estimator/index.html using the 92260
zip code. The Annual Total TDV energy, in KBtu/sf-yr, shall be the total annual KWh of
the solar PV energy system multiplied by 12,675 and divided by the total conditioned
floor area of the building.
The Building Official for the City of Palm Desert may specify at a later date a different
calculation method for establishing PV credit and may decertify the Clean Power
Estimator method.
RESIDENTIAL DEVELOPMENT is to include but not be limited to attached and
detached single-family dwellings, condominiums, apartments and time-share dwellings,
and not including hotels and motels as defined in the 2005 California Building Energy
Efficiency Standards.
REVISED STANDARD DESIGN TOTAL is the performance energy budget, in TDV
KBtu/sf-yr, which this Ordinance establishes for all residential buildings to which it
applies. It is defined as the Standard Design Total (TDV KBtu/sf-yr) from any state -
approved alternative calculation method (ACM) multiplied times the Standard Design
Adjustment Factor listed in Table A.
SOLAR PV ENERGY SYSTEM means a photovoltaic solar collector or other photovoltaic
solar energy device that has a primary purpose of providing for the collection and
distribution of solar energy for the generation of alternating current rated peak electricity.
The installation of any solar PV energy system must meet all installation criteria of the
current edition of the California Electrical Code, and must include PV panels and
inverters, which are listed by the California Energy Commission.
STANDARD DESIGN ADJUSTMENT FACTOR is the arithmetic factor listed in Table A
which, when multiplied by the standard design energy budget from a state -approved
ACM, produces the Revised Standard Design Total.
Table A.
_Building Tvpe
Sin le Family Homes < 4,000 SF
Single Family Homes = or > 4,000 SF
Low -Rise Multi -family Buildings
Condominium Conversions
Additions to all the above = or > 500 SF
All other additions and all alterations
Standard Design
Adiustment Factor_
0.90
0.85
0.90
0.90
0.90
1.00
Palm Desert Energy Ordinance 1214106 Page 2
Section 24.30.030 Mandatory Requirements. All buildings covered by this
Ordinance shall include the following mandatory energy measures as applicable and
limited to the permitted scope of work:
1. Liahtinq. All common area landscape lighting shall be fluorescent or approved low
voltage lighting in conformance with Palm Desert Municipal Code section 24.16.053.
2. Mechanical. In addition to meeting all the requirements of Section 144 of the 2005
Standards, all fan motors and pump motors which are single -speed, poly -phase, 1.0
nominal horsepower to 500 nominal horsepower, 2-, 4-, and 6-pole, squirrel cage
induction, NEMA Design A or B, continuous rated motors must be NEMA Premium
motors by the National Electrical Manufacturers Association.
3. Swimminq Pools and Spas. All Public and Private Swimming pools, spas, fountains
and water features shall incorporate the following energy conservation features:
(a) All pool and spa natural gas heaters shall have a minimum AFUE of 90% or
higher; and,
(b) All circulating pump motors and filtration pump motors with a nominal rating of
0.75 horsepower (i.e., % HP) or greater shall be two -speed or variable speed motors.
The installation of all two -speed and variable speed motors shall include the installation
of a controller which shall be time -based and shall be programmed to alternate the speed
of the motor between low and high to make effective use of the energy savings potential
of the unit's multi -speed capability. EXCEPTION: Dedicated pump motors serving only
spa jets.
4. Provisions for Future Solar PV Energv Svstems. A 1-inch diameter electrical conduit
shall be provided for installation of future solar PV energy systems. The 1 inch diameter
electrical conduit shall extend from a point on the exterior wall located under the
southern roof exposure, to the exterior wall location adjacent to the main electrical
service panel. At each location, the conduit shall terminate at a two gang, exterior wet
location rated, electric junction box.
Section 24.30.040 General Compliance Requirements. The following General
Compliance Requirements shall apply to all new construction and additions which are
500 square feet or larger. Note that other special requirements for single family homes
equal to or larger than 4,000 square feet and for production homes are included in
Section 22.30.050 of this Ordinance.
Palm Desert Energy Ordinance 1214106 Page 3
A. LOW-RISE RESIDENTIAL BUILDINGS (EXCEPT ADDITIONS < 500 Sa.Ft.1
SINGLE FAMILY HOMES < 4,000 Sq.Ft.), MULTI -FAMILY BUILDINGS. ADDITIONS
TO THESE BUILDINGS = OR > 500 SQ.Ft., AND CONDOMINIUM CONVERSIONS
The performance approach must be used to meet and exceed the 2005 Standards as
follows: the Proposed Design TDV KBtu/sf must be at least 10.0% less than the
Standard Design TDV KBtu/sf-yr. Additions of 500 sq.ft. or greater and condominium
conversions may meet this requirement by using the Existing+Addition+Alteration
method to demonstrate that the Proposed Design energy use is at least 10% less than
the Standard Design energy budget.
SINGLE FAMILY HOMES = or > 4,000 Sq.Ft.
The performance approach must be used to meet and exceed the 2005 Standards as
follows: the Proposed Design TDV KBtu/sf must be at least 15.0% less than the
Standard Design TDV KBtu/sf-yr.
In modeling buildings to meet this requirement, Domestic Hot Water (DHW) energy use
shall be included. Exception: When there is no change to a building's existing water
heater(s), DHW energy use need not be included in the Existing+Addition+Alteration
method.
B. NONRESIDENTIAL. HIGH-RISE RESIDENTIAL AND HOTEUMOTEL
OCCUPANCIES (EXCEPT ADDITIONS < 500 Sm t.j
The permit applicant must demonstrate that the general compliance requirement for the
building envelope has been met for these occupancies using either the Prescriptive or
Performance option defined below.
PRESCRIPTIVE ENVELOPE APPROACH
The Overall Envelope Approach in Section 143(b) of the 2005 Standards shall be used to
demonstrate that the Overall Heat Gain of the proposed building is at least 10.0% less
than the Overall Heat Gain of the standard building.
PERFORMANCE APPROACH
1. Performance alternatives to meeting the Prescriptive Envelope requirement are to:
(a) Model the building envelope only for compliance using a state -approved
nonresidential ACM and demonstrate that the Proposed Design TDV KBtu/sf for the
Cooling energy component must be at least 5.0% less than the Standard Design TDV
KBtu/sf-yr Cooling energy component; or,
Palm Desert Energy Ordinance 1214106 Page 4
(b) Model the building envelope and mechanical system for compliance and demonstrate
that the Proposed Design TDV KBtu/sf for the sum of the Cooling, Fan, Pump and Heat
Rejection energy components must be at least 5.0% less than the sum of the Standard
Design TDV KBtu/sf-yr Cooling, Fan, Pump and Heat Rejection energy components, or,
(c) Model the building envelope and lighting for compliance using a state -approved
nonresidential ACM and demonstrate that the Proposed Design TDV KBtu/sf for the sum
of Cooling and Lighting energy components must be at least 5.0% less than the
Standard Design TDV KBtu/sf-yr sum of Cooling and Lighting energy components; or,
(d) Model the building envelope, lighting and mechanical system for compliance and
demonstrate that the Proposed Design TDV KBtu/sf for the sum of the Cooling, Lighting,
Fan, Pump and Heat Rejection energy components must be at least 5.0% less than the
sum of the Standard Design TDV KBtu/sf-yr for the sum of Cooling, Lighting, Fan, Pump
and Heat Rejection energy components.
2. Additions of 500 sq.ft. or greater may use the Existing +Add itio n +Alteration method to
demonstrate that the sum of the specified Proposed Design energy components (defined
in 1 a, 1 b, 1 c or 1 d above) are at least 5% less than the sum of the same Standard
Design energy components.
C. CREDIT FOR SOLAR PV ENERGY SYSTEMS
1. PV Credit may be used per definition in Section 24.30.020 to reduce the Proposed
Design TDV energy.
2. If the performance approach is used to demonstrate compliance with the 2005
Standards, PV Credit may not be used to meet the Standards. However, PV Credit may
be used to exceed the Standards for the purposes of meeting the General Compliance
Requirements as explained in this section of the Ordinance.
D. DOCUMENTATION
To demonstrate that the General Compliance Requirements of this Ordinance have been
met, the permit applicant may, optionally, submit supplementary forms and
documentation separate from the building drawings, specifications and standard Title 24
report.
Palm Desert Energy Ordinance 1214106 Page 5
Section 24.30.050 Requirements for Production Homes in Residential
Developments. In addition to the requirements specified in Sections 24.30.020 through
24.30.040 of this Ordinance, production homes shall, as applicable, meet the following
additional requirements:
1. At least one model home which is a part of a production homes development shall
be equipped with a Solar PV Energy System with a minimum nominal output of 2.0 kW.
2. A seller of production homes shall offer a solar PV energy system option to all
customers that enter into negotiations to purchase a new production home and disclose
the following:
(a) The total installed cost of the solar PV energy system option; and,
(b) The estimated cost savings associated with the solar energy system option as
determined by current and projected future utility costs.
3. Energy Star Appliances Required. If provided by the developer, all the following
installed appliances shall be Energy Star rated:
(a) Dishwashers
(b) Refrigerators
(c) Clothes Washers
(d) Clothes Dryers ( Shall be Natural Gas only)
(e) Ceiling fans
(f) Exhaust fans
Section 24.30.060 Effective Date and Expiration Date. This Ordinance shall be
and is hereby declared to be in full force and effect 30 days after the second reading of
this Ordinance.
This Ordinance shall expire on the date that the state's 2008 Building Energy Efficiency
Standards take effect.
Palm Desert Energy Ordinance 1214106 Page 6
Section 2. Express Findings. Pursuant to California Health and Safety Code
section 17958.7, the City Council of The City of Palm Desert makes the following
Express Findings that the modifications to the 2005 California Building Energy Efficiency
Standards, as detailed in Section 1 of this Ordinance, are reasonably necessary due to
local climatic conditions. As a result of very high summer ambient temperatures,
including a Summer Design Temperature of 1120 F., average load demand and peak
load demand of energy used in Palm Desert is an important factor concerning public
safety and adverse economic impacts of power outages or power reductions (i.e.,
"brown -outs"). Utility company studies indicate that homes within The City of Palm
Desert use on an average of 50% more energy and average summer peak load
demands exceed 120% more energy than other similar utility customers located outside
the desert climate zone. Reduction of total and peak energy use as a result of
incremental energy conservation measures required by this Ordinance will have local and
regional benefits in the cost-effective reduction of energy costs for the building owner,
additional available system energy capacity, and a reduction in greenhouse gas
emissions.
Section 3. The City Clerk shall certify to the passage and adoption of this
Ordinance and shall cause the same to be published once in the Desert Sun, a
newspaper of general circulation printed and published in the County of Riverside and
circulated within the City of Palm Desert.
PASSED, APPROVED, AND ADOPTED by the City Council of the City of Palm Desert,
California, at its regular meeting held this day of , by the following
vote, to wit:
AYES:
NOES:
ABSENT:
ABSTAIN:
Richard Kellv, , MAYOR
ATTEST:
RACHELLE D. KLASSEN, CITY CLERK
CITY OF PALM DESERT, CALIFORNIA
Palm Desert Energy Ordinance 1214106 Page 7
Application for a Locally Adopted Energy Standards
by the City of Palm Desert In Accordance With
Section 10-106 of the California Code of Regulations,
Title 24, Part 1
September 29, 2006
From:
Patrick Conlon
Director of Office of Energy Management
City of Palm Desert
73510 Fred Waring Drive
Palm Desert, CA 92260
(760) 346-0611 ext. 386
Email: pconlonCa�ci.palm-desert.ca.us
Report prepared by:
Michael Gabel
Gabel Associates, LLC
1818 Harmon Street, Suite#1
Berkeley, CA 94703
(510) 428-0803
Email: mike(a�aabelener4v.com
Table of Contents
1.0 Executive Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2.0 Impacts of the New Ordinance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3.0 Credit for Solar PV Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.0 CostEffectiveness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.0 Implementation P/an . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.0 Language ofthe New Ordinance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Appendix A: Compliance Forms
Appendix 8: First Cost Data
Appendix C: Savings By Design Filing
Application for City of Pa/m Desert Locally Adopted Energy Standards 9/29/06 Page 0
1.0 Executive Summary
The City of Palm Desert has researched and reviewed the feasibility and cost-
effectiveness of building permit applicants exceeding the performance requirements of
the 2005 Building Energy Efficiency Standards. Having established local energy
efficiency criteria contained in the language of Ordinance 1124 (included as Section 5.0
of this document), the City would like to implement its Ordinance at the earliest
convenient date following approval by the California Energy Commission.
The City of Palm Desert has retained Gabel Associates, LLC to assist the City in this
application to the Commission. As stated in the Ordinance application, the proposed
local energy efficiency standards and implementation have been designed with several
key criteria in mind. These include:
• Consistency with the structure, format and calculation methods of the 2005
Title 24 Building Energy Efficiency Standards;
• Simplicity and clarity for building department enforcement for both energy plan
review and field inspection;
• Meeting the local energy compliance requirements as defined by the Ordinance
which exceed the 2005 Title 24 standards; and,
• The provision of maximum flexibility for building permit applicants in meeting the
Ordinance by one or more design approaches: (a) building and appliance energy
conservation measures; and/or, (b) the installation of a solar photovoltaic (PV)
system.
This application to the California Energy Commission conforms to the requirements laid
out in Section 10-106 of the California Code of Regulations, Title 24, Part 1, LOCALLY
ADOPTED ENERGY STANDARDS. The proposed Palm Desert Ordinance shall take
effect only after the Commission has reviewed and formally approved the proposed local
energy standards as meeting all requirements of Section 10-106.
Application for City of Palm Desert Locally Adopted Energy Standards 9/29/06 Page 1
Statement per Section 10-106(b)3. The proposed Ordinance requires that all buildings
are designed to consume no more TDV energy than permitted by Title 24, Part 6.
The main features of the proposed ordinance are that:
(a) Single family houses less than 4000 square feet of conditioned floor area, low-rise
multi-family buildings, condominium conversions and residential additions equal to
or greater than 500 square feet consume at least 10% less TDV energy than the
energy use permitted by the 2005 standards;
(b) Single family houses of 4000 square feet or more consume 15% less TDV energy
than the energy use permitted by the 2005 standards;
(c) The prescriptive envelope Heat Gain of all nonresidential buildings, except
additions less than 500 square feet, must be at least 10% less than the standard
prescriptive Heat Gain; or that a performance approach be used to demonstrate
that the proposed building uses less TDV energy than the standard design, as
defined within the Ordinance.
With respect to any technical questions concerning the development , methodology,
descriptions or implementation outlined in this application, please contact Michael Gabel
at Gabel Associates, LLC.
Application for City of Palm Desert Locally Adopted Energy Standards 9/29/06 Page 2
2.0 Impacts of the New Ordinance
The impacts of the Palm Desert Ordinance have been divided into low-rise residential
buildings (e.g., single family homes) in one category, and nonresidential, hotel/motel and
high-rise residential buildings in the other category, consistent with the 2005 standards.
2.1 Low-Rise Residential Buildings
The following methodology and assumptions are used in evaluating the impact of the
Ordinance on single family homes.
Prototype Homes. For the purpose of this study, two prototype homes were developed:
a smaller home with a total conditioned floor area of 2,500 sf, and a large home with a
total conditioned floor area of 5,000 sf. These prototype designs represent the geometry
of typical homes in Palm Desert without specifying the energy conservation measures or
levels of energy components such as fenestration, insulation or HVAC and domestic hot
water system efficiencies.
2,500 SF Home, 25% Glazing. This production home is a 2-story structure, with a raised
floor over a crawl space, and 9' ceilings with an attic space; 1,500 sf on the first floor,
1,000 sf on the second floor; and 25% total fenestration area (i.e., 625 sf of glazing):
8.75% on front 8 rear elevations, 3.75% on left 8� right elevations; and no skylights. The
HVAC systems are two forced air furnaces / split air conditioners, one serving each floor.
Ducts are in the crawl space for the 1 S'floor, and in the attic for the 2"d floor. One 75
gallon storage tank water heater serves the whole house. This house design is typical of
new production homes in Palm Desert as confirmed by a leading energy consultant in the
area.
2,500 SF Home, 30% Glazing. This custom home is a 2-story structure, with a raised
floor over a crawl space, and 9' ceilings with an attic space; 1,500 sf on the first floor, _
1,000 sf on the second floor; and 30% total fenestration area (i.e., 750 sf of glazing):
10.5% on front & rear elevations, 4.5% on left & right elevations; and no skylights. The
HVAC systems are two forced air furnaces / split air conditioners, one serving each floor.
Ducts are in the crawl space for the 1 St floor, and in the attic for the 2"d floor. One 75
gallon storage tank water heater serves the whole house. This house design is typical of
new custom homes in Palm Desert.
5,000 SF Home, 25% Glazing. This large production home is a 2-story structure, with a
raised floor over a crawl space, and 9' ceilings with an attic space; 3,000 sf on the first
floor, 2,000 sf on the second floor; and 25% total fenestration area (i.e., 1250 sf of
glazing): 8.75°/a on front & rear elevations, 3.75% on left 8� right elevations; and no
skylights. The HVAC systems are three forced air furnaces /split air conditioners, two
serving the first floor and one serving the second floor. Ducts are in the crawl space for
the 1 S`floor, and in the attic for the 2"d floor. Two 50 gallon storage tank water heaters
serve the house. This house design is typical of large new production homes in Palm
Desert.
Application for City of PaJm Desert Locally Adopted Energy Standards 9/29/06 Page 3
5,000 SF Home, 30% Glazing. This large custom home is a 2-story structure, with a
raised floor over a crawl space, and 9' ceilings with an attic space; 3,000 sf on the first
floor, 2,000 sf on the second floor; and 30% total fenestration area (i.e., 1500 sf of
glazing): 10.5% on front 8� rear elevations, 4.5% on left & right elevations; and no
skylights. The HVAC systems are three forced air furnaces /split air conditioners, two
serving the first floor and one serving the second floor. Ducts are in the crawl space for
the 1St floor, and in the attic for the 2"d floor. Two 50 gallon storage tank water heater
serve the house. This house design is typical of large new custom homes in Palm
Desert.
Residential Measures Needed to Meet Title 24. For each prototype home, the
following energy measures have been used to just meet the 2005 Building Energy
Efficiency Standards when the house is located in Climate Zone 15 in the worst-case
orientation:
2.500 SF, 25% Glazin4: Title 24 EnerQv Measures
• R-30 roof with radiant barrier
• R-21 exterior walls
• R-19 raised floor over crawl space
• Vinyl Low-E windows, U=0.39, SHGC=0.35
• Tyvek house wrap
• Furnace: 80% AFUE
• Air conditioner; 14.0 SEER , 11.9 EER [HERS], TXV [HERS]
• R-8 ducts in the crawl space (lower floor) and in the attic (upper floor)
• DHW: 75 gallon gas water heater, EF=0.52; pipe insulation to kitchen
2,500 SF, 30% Glazinq: Title 24 EnerQv Measures
• R-30 roof with radiant barrier
• R-21 exterior walls
• R-19 raised floor over crawl space
• Vinyl Low-E windows, U=0.39, SHGC=0.35
• Tyvek house wrap
• Furnace: 80% AFUE
• Air conditioner: 13.0 SEER , 11.4 EER [HERS], TXV [HERS]
• Duct sealing to achieve reduced duct leakage [HERS]
• R-6 ducts in the crawl space (lower floor) and in the attic (upper floor)
• DHW: 75 gallon gas water heater, EF=0.52; no additional pipe insulation
Application for City of Palm Desert Locally Adopted Energy Standards 9/29/06 Page 4
5,000 SF, 25% Glazinq: Title 24 Enerqv Measures
• R-38 roof with radiant barrier
• R-21 exterior walls
• R-30 raised floor over crawl space
• Vinyl Low-E windows, U=0.39, SHGC=0.35
• Tyvek house wrap
• Furnace: 80% AFUE
• Air conditioner: 14.0 SEER , 11.9 EER [HERS], TXV [HERSJ
• R-8 ducts in the crawl space (lower floor) and in the attic (upper floor)
• DHW: (2) 50 gallon gas water heaters, EF=0.62; no additional pipe insulation
5.000 SF, 30% Glazina: Title 24 Enerqv Measures
• R-30 roof with radiant barrier
• R-21 exterior walls
• R-19 raised floor over crawl space
• Vinyl Low-E windows, U=0.39, SHGC=0.35
• Tyvek house wrap
• Furnace: 80% AFUE
• Air conditioner: 13.0 SEER , 11.4 EER [HERS], TXV [HERS]
• Duct sealing to achieve reduced duct leakage [HERS]
• R-8 ducts in the crawl space (lower floor) and in the attic (upper floor)
• DHW: (2) 50 gallon gas water heaters, EF=0.62; ; pipe insulation to kitchen
Residential Energy Measures Needed to Meet the Palm Desert Ordinance
To determine how the prototype homes fare in the worst-case orientation within the
framework of the proposed Palm Desert Ordinance, common incremental energy
measures have been evaluated. The following energy features have been modified from
the Title 24 measures listed above so that the 2.500 sf homes use 10% less TDV
ener�ty than the Title 24 standard design, and the 5,000 sf homes use 15% less TDV
enerpy than the standard design.
2,500 SF, 25% Glazinq: Palm Desert Enerqv Measures Bevond Title 24 Measures
• Duct sealing to achieve reduced duct leakage [HERS]
2,500 SF, 30% Glazinq: Palm Desert Enerav Measures Bevond Title 24 Measures
• DHW: (1) Instantaneous gas water heater, EF=0.82; no additional pipe insulation
• R-8 duct insulation
• Air conditioner: 14.0 SEER , 11.9 EER [HERS]
Application for City of Pa/m Desert Locally Adopted Energy Standards 9/29/06 Page 5
5,000 SF, 25% Glazinq: Palm Desert Enerqv Measures Bevond Title 24 Measures
• Duct sealing to achieve reduced duct leakage [HERS]
• DHW: (2) Instantaneous gas water heaters, EF=0.80; no additional pipe insulation
5,000 SF. 30% Glazina: Palm Desert Enerav Measures Bevond Title 24 Measures
• DHW: (2) Instantaneous gas water heaters, EF=0.80
• Air conditioner: 14.0 SEER , 11.9 EER [HERS]
• Vinyl Low-E windows, U=0.39, SHGC=0.27
Note that the incremental energy design improvements specified above to meet the
proposed Ordinance requirements do not include a host of building/system measures
which also can effectively be used within the Title 24 performance method. Depending
upon the specific opportunities available for the particular building design and orientation,
any actual building can use many additional measures in an enormous variety of
combinations to meet the proposed Palm Desert requirements including:
• Fixed overhangs and side-fins for glazing which are extraordinarily effective within the
Paim Desert climate zone;
• Credit for zonal controls for living and sleeping zones within each home;
• Additional HERS measures such as building leakage testing, insulation quality, duct
design and proper cooling equipment sizing;
• Thermal mass credit when the sum of all interior masonry surfaces exceed 30% of the
conditioned floor area of the house;
• Residential ice storage (e.g., Ice Energy system)which shifts on-peak electricity
usage to off-peak hours is not considered; and,
• Solar photovoltaic (PV) systems which may be used as credit to exceed Title 24 in
meeting the requirements of the Ordinance.
Application for City of Palm DeseR Locally Adopted Energy Standards 9/29/06 Page 6
2.2 Nonresidential, Hotel/Motel and High-Rise Residential Buildings
The Ordinance has a Prescriptive Envelope Overall Heat Gain (HG) requirement for all
nonresidential, hotel/motel and high-rise residential buildings. Compliance can be
demonstrated prescriptively or with any one of several Performance options, including the
use of solar PV system credit .
The cost-effectiveness of the Ordinance for these occupancies can be established in a
variety of ways. The simplest approach is to consider that the local utility companies,
Southern California Edison and The Gas Company, have submitted filings to the
California Public Utilities Commission (CPUC)which assert cost-effectiveness of energy
measures needed to exceed the Title 24 energy requirements by 10%, the threshold at
which the Savings By Design program begins to award incentives for energy-efficient
buildings. Information provided in the most recent filing to the CPUC (for the 2006-2008
SBD program) is contained in Appendix C.
It is worthwhile to note that the prescriptive envelope requirements established by the
Ordinance relate only to heat gain, and not heat loss; and that the performance
equivalent allowed to meet the requirements of the Ordinance— exceeding Title 24 by 5°/a
-- is less stringent than the 10% threshold of the Savings By Design program. Therefore,
it is a fairly straightforward and reasonable conclusion that the Ordinance requirements
are feasible and cost-effective with respect to meeting the 2005 standards.
To test this, a 2-story office building was modeled to consider the incremental energy
improvements needed to exceed Title 24 and just meet the Ordinance requirements.
20,000 SF Office, 40% W1NR Glazing. This office building is a 2-story wood-frame
structure, with a slab-on-grade, 9' ceilings and an aspect ratio of 5:1 (a typical strip mall
configuration, 50' x 200') with 40% of the exterior wall glazed with 6'-0" high windows on
all four sides and no skylights. The 10 HVAC systems are split heat pump rooftop units
serving perimeter and interior zones, 5 on each floor.
• Just meets Title 24: 3'�0" overhangs, Low-E glazing, SHGC=0.41
Just meets P.D. Ordinance: 3'-0" overhangs, Low-E glazing, SHGC=0.38
• Just meets Title 24: No overhangs, Low-E glazing, SHGC=0.32
Just meets P.D. Ordinance: 3'-0" south overhanqs, Low-E alazinq, SHGC=0.32
20,000 SF Office, 20°/a W1NR Glazing. The same building but with 20% of the exterior
wall glazed with 6'-0" high windows on all four sides and no skylights.
• Just meets Title 24: 3'-0" overhangs, Low-E glazing, SHGC=0.41
Just meets P.D. Ordinance: No changes required to meet Palm Desert Ordinance
• Just meets Title 24: No overhangs, Low-E glazing, SHGC=0.41
Just meets P.D. Ordinance: No overhangs, Low-E glazing, SHGC=0.35
Application for City of Pa/m Desert Locally Adopted Energy Standards 9/29/06 Page 7
3.0 Credit for Solar PV Svstems
To provide another avenue for the building permit applicant to demonstrate the requisite
level of overall energy efficiency, the proposed Ordinance offers credit for solar
photovoltaic(PV) electricity generation which is installed at the building site. The credit
for PV systems is established by one of two Commission-approved methodologies
converted to Time Dependent Valuation [TDV] energy in KBtu/yr-sf.
Note: The ordinance and the special permit form (worksheet) make it clear that the house
must meet the 2005 Buildinp Enerqv Efficiencv Standards without PV credit. PV credit is
applicable onlv when exceedinq Title 24 to meet the repuirements of the loca/enerqv
ordinance.
A fully reviewed and approved methodology for PV system performance by the California
Energy Commission for the New Solar Homes Partnership may not be publicly available
by the time this Ordinance takes effect. As a result, the Ordinance allows the use of the
Commission's Clean Power Estimator until February 1, 2007 — by which time the
newsolarhomes.ca.gov web site will have the newer and more accurate calculation
method online for permit applicants to use, if necessary. Therefore, the Ordinance
includes this language to make clear which PV credit calculation may be used:
For buildings permitted before February 1, 2007: The methodology used to calculate
the PV credit shall be the Clean Power Estimator at:
http://www.clean-qower.com/cec/default.asp using the 92260 zip code. The Annual Total
TDV energy, in KBtu/sf-yr, shall be the total annual KWh of the solar PV energy system
multiplied by 12.675 (see below for derivation of this value) and divided by the total
conditioned floor area of the building. This method of calculating PV credit may be used
after February 1, 2007 until the method listed below is posted on that Internet web site.
For buildings permitted on or after February 1, 2007: The amount of PV credit is
defined as the annual total TDV KBtu/sf-yr of the solar PV energy system as calculated in
accordance with the implementation rules and methodology of the California New Solar
Homes Partnership as posted on the Internet web site
http://www.newsolarhomes.ca.caov/; multiplied by 1000 and divided by the total
conditioned floor area of the building. This method of calculating PV credit may be used
before February 1, 2007 if it is available on the listed Internet web site prior to that date.
The Clean Power Estimator lists the total annual KWh of the PV system, and that value is
converted to TDV energy according to the calculation documented by Gabel Associates
previously in the County of Marin County application for its local energy ordinance in
2005. The annual average TDV energy multiplier during daylight hours was determined
to be 4.22. Since the New Solar Homes PV calculation uses a 0.88 multiplier to account
for dirt and a modest percentage of non-working PV collectors, the annual TDV energy
for each KWh of annual PV system energy is calculated as follows:
1 KWh x 3.143 Btu/Wh x 4.22 x 0.88 = 12.675 TDV kBtu/yr
Application for City of Palm Desert Locally Adopted Energy Standards 9/29/06 Page 8
The value is then divided by the conditioned floor area of the building to calculate the
TDV energy in kBtu/sf-yr, the metric used by the ACMs in demonstrating compliance with
the performance standards. For example, a 5,000 square foot house receives a PV
credit for each 1,000 KWh of annual PV system energy as follows:
12,675 TDV kBtu/vr = 2.88 TDV kBtu/sf-yr
5,000 sf
The Palm Desert compliance form/spreadsheet includes this PV credit as part of the
overall compliance calculation.
Application for City of Pa/m Desert Locally Adopted Energy Standards 9/29/06 Page 9
4. Cost Effectiveness
4.1 Residential Requirements
The cost effectiveness of ineeting the requirements of the Ordinance is calculated for the
two prototype homes analyzed above with different glass (fenestration) areas. The
incremental total first cost of the measures needed to meet the Palm Desert Ordinance is
divided by the incremental annual energy cost saving to establish a Simple Payback for
the additional energy features. The study uses an average utility rate price of$0.16/kWh
for electricity and $0.92/therm for natural gas.
Table 1 a: Summary of Energy Savings from Pa/m Desert Energy Ordinance
Electricity Gas Electricity Nat. Gas Total Annual
Prototype Saving Saving Cost Saving Cost Saving Cost Saving
Home (KWh/yr) (therms/yr) ($) ($) ($)
2,500 SF, 25% Glass 1348 11 $216 $10 $226
2,500 SF, 30% Glass 638 105 $102 $97 E199
5,000 SF, 25% Glass 2454 135 $393 $124 $517
5,000 SF, 30% Glass 3079 108 $493 $99 $592
Table 1 b: Summary of Simple Payback for Palm Desert Energy Measures
Incremental First Incremental
Prototype Cost as Compared Annual Energy Simple Payback
Home w/Title 24 House ($) Cost Saving ($) (Years)
2,500 SF, 25% Glass $1886 $226 8.8
2,500 SF, 30% Glass $1012 $199 5.1
5,000 SF, 25% Glass $3981 $517 7.7
5,000 SF, 30% Glass $4681 $592 7.9
Based on this data, the Palm Desert Ordinance increases the cost of construction by
approximately $0.40 to $0.95 per square foot, for which the energy cost savings as a
simple payback from first cost is in the range of 5 to 9 years. If the overall cost of new
residential construction, including the cost of land and other related permit fees, is in the
range of$300 to $350 per square foot, the Ordinance will increase that overall cost by
one-sixth to one-third of one percent. At current utility rates, the expected energy savings
within the first 9 years of building occupancy will pay for the increased first cost, after
which the building owner will make a projected profit of 10% to 20% return-on-investment
for the extra energy measures required by the Ordinance.
Application for City of Pa/m Desert Locally Adopted Energy Standards 9/29/06 Page 1�
4.2 Nonresidential Requirements
The cost effectiveness of ineeting the prescriptive envelope requirements of the
Ordinance is calculated for the office buildings analyzed above with different glass
(fenestration) areas. The incremental total first cost of the measures needed to meet the
Palm Desert Ordinance is divided by the incremental annual energy cost saving to
establish a Simple Payback for the additional energy features. The study uses an
average utility rate price of$0.16/kWh for electricity.
Table 2a: Summary of Prescriptive Energy Savings and Simple Payback, Office
Incremental First Electricity Electricity Simple
Cost as Compared Saving Cost Saving Payback
Protot e Buidlin w/Title 24 Bld $ KWh/ r $ Years
Office: 20,000 SF, 40%VWNR
(A) Better glass SHGC $8000 10395 $1663 4.8
(B) Add 3' OH, south glass $16000 3782 $605 26.4
Office: 20,000 SF, 20%VWNR
(A) No changes required $0'"` 0 ** $0*" n/a*'`
(B) Better glass SHGC $4000 3050 $488 8.2
"'' This shading/g/azing combination meets the Palm Desert Ordinance requirements.
Based on this data, using the prescriptive path, the Palm Desert Ordinance increases the
cost of construction by $0.00 to $0.80 per square foot, for which the energy cost savings
as a simple payback can range tremendously. However, a performance compliance
option can significantly reduce incremental first cost and simple payback.
For example, starting with the 40% VWVR office building with no overhangs and the Low-
E glass which just meets Title 24, one question is: how does the building designer
increase the overall energy efficiency to meet the Palm Desert Ordinance and decrease
the first cost and/or significantly reduce the Simple Payback. In this case, one can utilize
a combination of no overhangs, better glazing and reduced installed lighting wattage
through the use of more efficient lighting fixtures and lighting control credits for
occupancy sensors in some rooms to obtain the following:
Table 2b: Summa of Performance Ener Savin s and Sim le Pa back
Incremental First Electricity Electricity Simple
Cost as Compared Saving Cost Saving Payback
Proto e Buidlin w/Title 24 Bld $ KWh/ r $ Years
Office: 20,000 SF, 40%VWHR
Better glass, NFRC-Tested,
high-efficiency fixtures, $38000 26541 $4247 8.9
lighting control credits
Application for City of Palm Desert Locally Adopted Energy Standards 9/29/O6 Page 11
Even though the first cost has increased, the payback period for making these
improvements has been reduced from over 25 years to less than 10 years. If the building
developer is concerned primarily with first cost, he can choose the Iowest first cost
illustrated in Table 2a. However, if the building owner is a company which will occupy the
building for 10 years, the extra $22,000 (i.e., $38,000 - $16,000) is a worthwhile
investment that will reap over$4,000 per year in energy cost savings after a nine or ten
year payback. By incorporating the flexibility of the energy performance approach, the
Ordinance provides for a free-market analysis that encourages investment in the most
cost-effective energy efficiency strategies.
If the overall cost of nonresidential construction is approximately $250 to $300 per square
foot, the range of increased first cost as a result of this Ordinance may range from no
cost at all (i.e., $0) up to perhaps $2.00 per square foot in some cases. This translates to
0% to 0.8% increased construction cost, with an average of perhaps 0.3% to 0.4°/a
increase, depending on the goal and strategy of the designer and building owner.
Application for City of Palm Desert Locally Adopted Energy Standards 9/29/06 Page 12
5.0 Implementation Plan
The implementation of the City of Palm Desert energy ordinance is based on the
submittal of a single extra one-page form which is printed out from an Excel spreadsheet
available from the City of Palm Desert. Alternatively, a permit applicant can provide the
same information on a pre-printed form with calculations listed also provided by the City.
With the exception of a verifying a few additional mandatory measures, the City of Palm
Desert plan review will involve:
(a) Verifying the occupancy type(s) and scope of work to determine whether and
how the Ordinance applies;
(b) Checking the drawings, specifications and regular Title 24 documentation
under the 2005 Building Energy Efficiency Standards; and,
(c) Checking the one-page additional form which demonstrates compliance with
the Ordinance.
Field inspection will be essentially identical to working with the current standards, with the
inclusion of the few additional local mandatory measures.
Gabel Associates will work in conjunction with the City of Palm Desert to plan all aspects
of the implementation, including trainings for the building department, local energy
consultants and interested parties (e.g., designers and builders)who would like to learn
more about how to meet the Ordinance's energy requirements.
The City will put out information to all relevant professional building industry groups and
the California Association of Building Energy Consultants (CABEC) to assist in the
transition to working under the new Ordinance.
Application for City of Pa/m Desert Locally Adopted Energy Standards 9/29/06 Page 13
6.0 Text of the Palm Desert Ordinance
ORDINANCE NO. 1124
AN ORDINANCE OF THE CITY COUNCIL �F THE CITY OF PALM DESERT,
CALIFORNIA, ADOPTING LOCAL ENERGY EFFICIENCY STANDARDS FOR
BUILDINGS COVERED BY THE 2005 CALIFORNIA BUILDING ENERGY
EFFICIENCY STANDARDS
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF PALM DESERT,
CALIFORNIA, DOES HEREBY ORDAIN AS FOLLOWS:
Section 1. Chapter 24.30 be and the same is hereby added to the Code of the
City of Palm Desert, California, as follows:
Section 24.30.010 Title, Purpose and Intent. This Ordinance sets forth
minimum energy efficiency standards within the City of Palm Desert for all new
construction, including remodels, additions, alterations, condominium conversions and
tenant improvements.
(a) Background. All residential and nonresidential development must meet or exceed the
energy requirements contained in the 2005 California Building Energy Efficiency
Standards, including California Code of Regulations, Title 24, Parts 1 and 6 (the
"Standards"). This Ordinance requires the application of the Standards, including but not
limited to the definitions, procedures, forms, manuals and alternative calculations
methods ("ACMs") associated with the Standards. In addition, this Ordinance amends
the Standards as described herein.
(b) Buildings Covered. The provisions of this Ordinance shall apply to all new residential
construction, remodels, additions and alterations, and to all new nonresidential
construction, remodels, additions, alterations and tenant improvements for which a
building permit has been applied for and accepted as complete by the building
department on or after the effective date of this Ordinance.
Section 24.30.015 Enforcement. The Building Official for the City of Palm Desert
shall be charged with enforcing the provisions of this Ordinance.
Section 24.30.020 Definitions.
CONDOMINIUM CONVERSION is defined in Section 25.112 of the Palm Desert
Municipal Code.
PRODUCTION HOME means a dwelling constructed as part of a residential development
of at least five homes per project that is intended or offered for sale.
PV CREDIT is the energy credit applicable to the Proposed Design for a solar PV energy
system that is capable of generating electricity from sunlight and supplying it directly to
the building; and is connected, through a reversible meter, to the utility grid.
Appfication for City of Palm Desert Locally Adopted Energy Standards 9/29/06 Page 14
For buildinqs permitted before February 1, 2007: The methodology used to calculate the
PV credit shall be the Clean Power Estimator at:
http://www.clean-power.com/cec/default.asp using the 92260 zip code. The Annual Total
TDV energy, in KBtu/sf-yr, shall be the total annual KWh of the solar PV energy system
multiplied by 12,675 and divided by the total conditioned floor area of the building.
For buildinqs permitted on or after February 1, 2007: The amount of PV credit is defined
as the annual total TDV KBtu/sf-yr of the solar PV energy system as calculated in
accordance with the implementation rules and methodology of the California New Solar
Homes Partnership as posted on the Internet web site
http://www.newsolarhomes.ca.aov/; multiplied by 1000 and divided by the total
conditioned floor area of the building. Note: this method of calculating PV credit may be
used before February 1, 2007 if it is publicly available on the above Internet web site.
RESIDENTIAL DEVELOPMENT is to include but not be limited to attached and detached
single-family dwellings, condominiums, apartments and time-share dwellings, and not
including hotels and motels as defined in the 2005 California Building Energy Efficiency
Standards.
REVISED STANDARD DESIGN TOTAL is the performance energy budget, in TDV
KBtu/sf-yr, which this Ordinance establishes for all residential buildings to which it
applies. It is defined as the Standard Design Total (TDV KBtu/sf-yr) from any state-
approved alternative calculation method (ACM) multiplied times the Standard Design
Adjustment Factor listed in Table A.
SOLAR PV ENERGY SYSTEM means a photovoltaic solar collector or other photovoltaic
solar energy device that has a primary purpose of providing for the collection and
distribution of solar energy for the generation of alternating current rated peak electricity.
The installation of any solar PV energy system must meet all installation criteria of the
current edition of the California Electrical Code, and must include PV panels and
inverters, which are listed by the California Energy Commission.
STANDARD DESIGN ADJUSTMENT FACTOR is the arithmetic factor listed in Table A
which, when multiplied by the standard design energy budget from a state-approved
ACM, produces the Revised Standard Design Total.
Table A.
Standard Design
Buildin T e ; Ad'ustment Factor
Sin�le Famil Homes < 4,000 SF 0.90 _ _
Sin�le Family Homes = or > 4,000 SF 0.85
�ow-Rise Multi-family Buildin s 0.90
Condominium Conversions 0.90
- - —
Additions to all the above = or > 500 SF 0.90
Application for City of Palm Desert Locally Adopted Energy Standards 9/29/06 Page 15
Section 24.30.030 Mandatory Requirements. All buildings covered by this
Ordinance shall include the following mandatory energy measures as applicable and
limited to the permitted scope of work:
1. Liahtina. Lighting in all laundry rooms, utility rooms, mechanical rooms, closets and
garages shall be fluorescent and controlled by a Manual-ON, Automatic-OFF occupancy
sensor. All common area landscape lighting shall be fluorescent.
2. Mechanical. In addition to meeting all the requirements of Section 144 of the 2005
Standards, all fan motors and pump motors which are single-speed, poly-phase, 1.0
nominal horsepower to 500 nominal horsepower, 2-, 4-, and 6-pole, squirrel cage
induction, NEMA Design A or B, continuous rated motors must be NEMA Premium
motors by the National Electrical Manufacturers Association.
3. Swimmina Pools and Spas. All Public and Private Swimming pools, spas, fountains
and water features shall incorporate the following energy conservation features:
(a) All pool and spa natural gas heaters shall have a minimum AFUE of 90% or
higher; and,
(b) All circulating pump motors and filtration pump motors with a nominal rating of
0.75 horsepower (i.e., 3/< HP) or greater shall be two-speed or variable speed motors. The
installation of all two-speed and variable speed motors shall include the installation of a
controller which shall be time-based and shall be programmed to alternate the speed of
the motor between low and high to make effective use of the energy savings potential of
the unit's multi-speed capability. EXCEPTION: Dedicated pump motors serving only spa
jets.
4. Provisions for Future Solar PV Enerav Svstems. A 1-inch diameter electrical conduit
shall be provided for installation of future solar PV energy systems. The 1 inch diameter
electrical conduit shall extend from a point on the exterior wall located under the southern
roof exposure, to the exterior wall location adjacent to the main electrical service panel.
At each location, the conduit shall terminate at a two gang, exterior wet location rated,
electric junction box.
Section 24.30.040 General Compliance Re4uirements. The following General
Compliance Requirements shall apply to all new construction and additions which are
500 square feet or larger. Note that other special requirements for single family homes
equal to or larger than 4,000 square feet and for production homes are included in
Section 22.30.050 of this Ordinance.
Appfication for City of Palm Desert Locally Adopted Energy Standards 9/29/06 Page 16
A. LOW-RISE RESIDENTIAL BUILDINGS (EXCEPT ADDITIONS < 500 Sq.Ft.)
SINGLE FAMILY HOMES < 4,000 Sq.Ft.), MULTI-FAMILY BUILDINGS. ADDITIONS TO
THESE BUILDINGS = OR > 500 Sp.Ft., AND CONDOMINIUM CONVERSIONS
The performance approach must be used to meet and exceed the 2005 Standards as
follows: the Proposed Design TDV KBtu/sf must be at least 10.0% less than the
Standard Design TDV KBtu/sf-yr. Additions of 500 sq.ft. vr greater and condominium
conversions may meet this requirement by using the Existing+Addition+Alteration method
to demonstrate that the Proposed Design energy use is at least 10% less than the
Standard Design energy budget.
SINGLE FAMILY HOMES = or > 4.000 Sa.Ft.
The performance approach must be used to meet and exceed the 2005 Standards as
follows: the Proposed Design TDV KBtu/sf must be at least 15.0% less than the
Standard Design TDV KBtu/sf-yr.
In modeling buildings to meet this requirement, Domestic Hot Water(DHW) energy use
shall always be included. Exception: When there is no change to a building's existing
water heater(s), DHW energy use need not be included in the
Existing+Addition+Alteration method.
B. NONRESIDENTIAL. HIGH-RISE RESIDENTIAL AND HOTEUMOTEL
OCCUPANCIES (EXCEPT ADDITIONS < 500 Sq.Ft.)
The permit applicant must demonstrate that the general compliance requirement for the
building envelope has been met for these occupancies using either the Prescriptive or
Performance option defined below.
PRESCRIPTIVE ENVELOPE APPROACH
The Overall Envelope Approach in Section 143(b) of the 2005 Standards shall be used to
demonstrate that the Overall Heat Gain of the proposed building is at least 10.0°/a less
than the Overall Heat Gain of the standard building.
PERFORMANCE APPROACH
1. Performance alternatives to meeting the Prescriptive Envelope requirement are to:
(a) Model the building envelope only for compliance using a state-approved
nonresidential ACM and demonstrate that the Proposed Design TDV KBtu/sf for the
Cooling energy component must be at least 5.0% less than the Standard Design TDV
KBtu/sf-yr Cooling energy component; or,
Application for City of Pa/m Desert Locally Adopted Energy Standards 9/29/06 Page 17
(b) Model the building envelope and mechanical system for compliance and demonstrate
that the Proposed Design TDV KBtu/sf for the sum of the Cooling, Fan, Pump and Heat
Rejection energy components must be at least 5.0% less than the sum of the Standard
Design TDV KBtu/sf-yr Cooling, Fan, Pump and Heat Rejection energy components, or,
(c) Model the building envelope and lighting for compliance using a state-approved
nonresidential ACM and demonstrate that the Proposed Design TDV KBtu/sf for the sum
of Cooling and Lighting energy components must be at least 5.0% less than the Standard
Design TDV KBtu/sf-yr sum of Cooling and Lighting energy components; or,
(d) Model the building envelope, lighting and mechanical system for compliance and
demonstrate that the Proposed Design TDV KBtu/sf for the sum of the Cooling, Lighting,
Fan, Pump and Heat Rejection energy components must be at least 5.0% less than the
sum of the Standard Design TDV KBtu/sf-yr for the sum of Cooling, Lighting, Fan, Pump
and Heat Rejection energy components.
2. Additions of 500 sq.ft. or greater may use the Existing+Addition+Alteration method to
demonstrate that the sum of the specified Proposed Design energy components (defined
in 1 a, 1 b, 1 c or 1 d above) are at least 5% less than the sum of the same Standard
Design energy components.
C. CREDIT FOR SOLAR PV ENERGY SYSTEMS
1. PV Credit may be used per definition in Section 24.30.020 to reduce the Proposed
Design TDV energy.
2. If the performance aaproach is used to demonstrate compliance with the 2005
Standards, PV Credit mav not be used to meet the Standards. However, PV Credit may
be used to exceed the Standards for the purposes of ineeting the General Compliance
Requirements as explained in this section of the Ordinance.
D. DOCUMENTATION
To demonstrate that the General Compliance Requirements of this Ordinance have been
met, the permit applicant may, optionally, submit supplementary forms and
documentation separate from the building drawings, specifications and standard Title 24
report.
Appfication for City of Palm Desert Locally Adopted Energy Standards 9/29/06 Page 18
Section 24.30.050 Reauirements for Production Homes in Residential
Developments. In addition to the requirements specified in Sections 24.30.020 through
24.30.040 of this Ordinance, production homes shall, as applicable, meet the following
additional requirements:
1. Model homes as part of a production homes development shall be equipped with a
Solar PV Energy System with a minimum nominal output of 2.0 kW.
2. A seller of production homes shall offer a solar PV energy system option to all
customers that enter into negotiations to purchase a new production home and disclose
the following:
(a) The total installed cost of the solar PV energy system option; and,
(b) The estimated cost savings associated with the solar energy system option as
determined by current and projected future utility costs.
3. Enerav Star Appliances Reauired. If provided by the developer, all the following
installed appliances shall be Energy Star rated:
(a) Dishwashers
(b) Refrigerators
(c) Clothes Washers
(d) Clothes Dryers (Natural Gas only)
(e) Ceiling fans
(f) Exhaust fans
Section 24.30.060 Effective Date and Expiration Date. This Ordinance shall be
and is hereby declared to be in full force and effect 30 days after the second reading of
this Ordinance.
This Ordinance shall expire on the date that the state's 2008 Building Energy Efficiency
Standards take effect.
Application for City of Palm Desert Locally Adopted Energy Standards 9/29/06 Page 19
Section 2. Express Findings. Pursuant to California Health and Safety Code
section 17958.7, the City Council of The City of Palm Desert makes the following Express
Findings that the modifications to the 2005 California Building Energy Efficiency
Standards, as detailed in Section 1 of this Ordinance, are reasonably necessary due to
local climatic conditions. As a result of very high summer ambient temperatures,
including a Summer Design Temperature of 112° F., average load demand and peak load
demand of energy used in Palm Desert is an important factor concerning public safety
and adverse economic impacts of power outages or power reductions (i.e., "brown-outs").
Utility company studies indicate that homes within The City of Palm Desert use on an
average of 50% more energy and average summer peak load demands exceed 120%
more energy than other similar utility customers within the utility service territory.
Reduction of total and peak energy use as a result of incremental energy conservation
measures required by this Ordinance will have local and regional benefits in the cost-
effective reduction of energy costs for the building owner, additional available system
energy capaciity, and a reduction in greenhouse gas emissions.
Section 3. The City Clerk shall certify to the passage and adoption of this
Ordinance and shall cause the same to be published once in the Desert Sun, a
newspaper of general circulation printed and published in the County of Riverside and
circulated within the City of Palm Desert.
PASSED, APPROVED, AND ADOPTED by the City Council of the City of Palm Desert,
California, at its regular meeting held this day of , , by the following
vote, to wit:
AYES:
NOES:
ABSENT:
ABSTAIN:
JIM FERGUSON, MAYOR
ATTEST:
RACHELLE D. KLASSEN, CITY CLERK
CITY OF PALM DESERT, CALIFORNIA
Application for City of Palm Deserl Locally Adopted Energy Standards 9/29/06 Page 20
Appendix A: Citv of Palm Desert Compliance Forms
Samp/es of Excel Spreadsheets to be Provided by fhe City
(Printed forms for hand calculations will also be provided by the City.)
Application for City of Palm Desert Locally Adopted Energy Standards 9/29/06
Residential Form: Paim Desert Enerqv Ordinance PD-RES
Before 2/1/07
Pro�ect Name/Address: Smlth Residence, 1235 Can on Drlve, Palm Desert,CA
Date of Title 24 Re ort: 9I26I2006 Conditioned Floor Area SF : 5,000
1. Calculate Palm Desert Enerqv Ordinance Standard Desian:
Revised
Standard Design Adjustment Standard Design
Total TDV KBtu/sf- r Factor Total TDV KBtu/sf- r
75.00 x 0.85 = 63.75
(from Part 1, CF-1R: (from Table AJ (used in Step#4]
see Note 1 below]
2. Calculate Solar Photovoltaic (PV) Svstem Credit in the Proqosed Desian:
If a proposed PV system is receiving credit under this Ordinance.
Proposed Design
Total Annual PV System Credit
KWh from PV S stem TDV KBtu/sf- r
300�- 7.61
(see Note 2 below] (used in Step#3]
3. Calculate Palm Desert Enerav Ordinance Proposed Desian:
Revised
Proposed Design Proposed Design
Total TDV KBtu/sf- r Total TDV KBtulsf- r
70.93 - 7.61 = 63.33
(from Part 1, CF-1R; �used in Step#4J
see Note 1 below]
4. Verifv Palm Desert General Co mpliance Requirement:
BUILDING COMPLIES? YES
Table A. Standard Design Adjustment Factor
Buildin T e Ad'ustment Factor
Sin le Famil Homes <4,000 SF 0.90
Sin le Famil Homes=or>4,000 SF 0.85
Low-Rise Multi-famil Buildin s 0.90
Condominium Conversions 0.90
Additions to An of the Above if=or> 500 SF 0.90
Note 1: This value must always include DHW energy use, except in the E+A+A method when there is
no change in the existing heater(s).
Note 2: To obtain this value when the permit is to be filed before February 1, 2007, input alf relevant data
for the solar PV system at the following web site: http://www.clean-power.com/cec/default.as�
Be sure to use the 92260 zip code in that calculation.
26i�fQ[m.may be_used with ep rmit�lications nrior to Fe ruary 1•.�QQZ� . ._. __. —B�r��IQ�
Residential Form: Palm Desert EnerQy Ordinance PD-RES
After 2/1/07
Pro'ect Name/Address: Smith Residence,1235 Can on Drive, Palm Desert,CA
Date of Title 24 Re ort: 9126/2006 Conditioned Floor Area SF : 5,000
1. Calculate Palm Desert Ener4v Ordinance Standard Desiqn:
Revised
Standard Design Adjustment Standard Design
Total TDV KBtu/sf- r Factor Total TDV KBtu/sf- r
75.00 x 0.85 = 63.75
(from Part 1, CF-1RJ (from Table AJ (used in Step#4J
see Note 1 belowJ
2. Calculate Solar Photovoltaic (PVl Svstem Credit in the Prodosed Desi4n:
If a proposed PV system is receiving credit under this Ordinance.
Annual Proposed Design
PV System Credit PV System Credit
Total TDV Kbtu TDV KBtu/sf- r
38025 7.61
(see Note 2 below] (used in Step#3J
3. Calculate Palm Desert Enerqv Ordinance Proposed Desiqn:
Revised
Proposed Design Proposed Design
Total TDV KBtu/sf- r Total TDV KBtu/sf- r
70.93 - 7.61 = 63.33
(from Part 1, CF-1RJ (used in Step#4J
see Nofe 1 belowJ
4. Yerifv Palm Desert General Co maliance Requirement:
BUILDING COMPLIES? YES
Table A. Standard Design Adjustment Factor
Buildin T e Ad'ustment Factor
Sin le Famil Homes<4,000 SF 0.90
Sin le Famil Homes=or>4,000 SF 0.85
Low-Rise Multi-famil Buildin s 0.90
Condominium Conversions 0.90
Additions to An of the Above if= or> 500 SF 0.90
Note 1: This value must always include DHW energy use, except in the E+A+A method when there is
no change in the existing heater(s).
Note 2:To obta+n this value when the permit is to be filed on or after February 1, 2007, input all relevant data
for the solar PV system at the following web site: http://www.newsolarhomes.ca.aov/
This form mav��ed wi h nermi[a��ons or or after February 1. 2007. __ Pv..9129/06
Nonresidential Prescriptive Form: Palm Desert Enerqv Ordinance PD-NR
Pro'ect Name/Address: Mountafn Offlce Buildin ,98Q0 Cactus Drive, Palm Desert,CA
Date of Title 24 Re ort: 9J26/2006 Conditioned Floor Area SF : 20,000
1. Calcutate Revised Standard Overall Heat Gain (HGI:
Revised
Standard Overall Standard Overalt
Total Heat Gain HG Total Heat Gain HG
348,914 x 0.90 = 314,023
[from ENV-3-C,
Part 6 of 7, Column MJ
2. Verifv Compliance With Buildinq Envelope ReQuirement:
BUILDING
Proposed Overall ENVELOPE
Total Heat Gain HG COMPLIES?
303,046 =or< 314,023 YES
(from ENV-3-C,
Part 6 of 7, Column IJ
Nonresidential Performance Form: Palm Desert Eners�v Ordinance PD-NR-PERF
Before 2/1/07
Pro�ect Name/Addre Mountain Office Buildin ,9800 Cactus Drive, Palm Desert,CA
Date of Title 24 Re c 912T/2008 Conditioned Floor Area SF : 20,000
1. Input Data from Part 2 of 3, PERF-1 Form (from auproved Nonresidential ACMI
(Partial) (Partial)
Energy Standard Design Proposed Design
Com onent TDV KBtu/sf- r TDV KBtu/sf- r Instructions
S ace Coolin 156.69 133.21 In ut S ace Coolin for eve ro ect.
Indoor Fans 83.87 86.21 In ut Indoor Fans if includin Mechanical com liance.
Heat Re�ection 0.00 0.00 In ut Heat Re ection if includin Mechanical com liance.
Pum s& Misc. 0.00 0.00 In ut Pum s&Misc.if includin Mechanical com liance.
Li htin 95.52 92.04 In ut Li htin if includin Li htin com liance.
TOTALS: 336.08 311.46
2. Calculate Solar Photovoltaic (PV) Svstem Credit in the Proposed Desiqn:
If a proposed PV system is receiving credit under this Ordinance.
Proposed Design Comments:
Total Annual KWh PV System Credit Based on the PV system's Total Annual KWh,
from PV S stem TDV KBtu/sf- r the PV system credit in TDV/KWh/sf-yr equals
10000 6.34 ((Annual KWh)x 12.675)I(Conditioned Floor Area)
(see Note 1 below] (used in Step#3J
3. Verify Compliance With Palm Desert Ener�ty Ordinance:
Revised(Partial) Revised(Partial)
Standard Design Proposed Design
TDV KBtu/sf- r TDV KBtulsf- r
319.28 = or > 305.12
BUILDING COMPLIES? YES
Note 1: To obtain this value for a permit filed before February 1, 2007, input relevant
data for the solar PV system at the following web site: http://www.clean-power.com/cec/default.asp
Be sure to use the 92260 zip code in the calculation.
This form may be used with en rmit a���ti4[L��[ior to Februarvl,_2QQZ�_ ._ .. . _. ...___.__ Rev. 9/28/06
Nonresidential Performance Form: Palm Desert EnerQv Ordinance PD-NR-PERF
After 2/1/07
Pro'ect Name/Addre�lAountain Office Buildin ,9800 Cactus Drive, Palm Desert,CA
Date of Title 24 Re a912712006 Conditioned Floor Area SF : 20,000
1. Input Data from Part 2 of 3. PERF-1 Form (from aaaroved Nonresidential ACMI
(Partial) (Partial)
Energy Standard Design Proposed Design
Com onent TDV KBtu/sf- r TDV KBtu/sf- r Instructions
S ace Coolin 156.69 133.21 In ut S ace Coolin for eve ro'ect.
Indoor Fans 83.87 86.21 In ut Indoor Fans if includin Mechanical com liance.
Heat Re'ection 0.00 0.00 In ut Heat Re'ecbon if includin Mechanical com liance.
Pum s 8� Misc. 0.00 0.00 In ut Pum s 8 Misc.if includin Mechanical com liance.
Li htin 95.52 92.04 In ut Li htin if includin Li htin com liance.
TOTALS: 336.08 311.46
2. Calculate Solar Photovoltaic (PV) Svstem Credit in the Proposed Desiqn:
If a proposed PV system is receiving credit under this Ordinance.
Annual Proposed Design Comments:
PV System Credit PV System Credit Based on the PV system's Total Annual KWh,
Total TDV KBtu/sf- r TDV KBtu/sf- r the PV system credit in TDV/KWhlsf-yr equals
100000 5.00 ((Annual KWh)x 12.675)I(Conditioned Floor Area)
(see Note 1 below] (used in Step#3J
3. Verifv Compliance With Palm Desert Ener�tv Ordinance:
Revised(Partial) Revised (Partial)
Standard Design Proposed Design
TDV KBtulsf- r TDV KBtu/sf- r
319.28 = or > 306.46
BUILDING COMPLIES? YES
Note 1: To obtain this value when the permit is to be filed on or after February 1,2007, input relevant data
for the solar PV system at the following web site: http://www.newsolarhomes.ca.qov/
This form may be used with nermit avplications or or affer Februanr 1� 2007. Rev. 9/28/06
Appendix B: First Cost Data Provided bv Don Todd Associates
Application for City of Palm Desert Locally Adopted Energy Standards 9/29/06
ENERGY MEASURES
Palm Desert Study
City Of Palm Desert, CA
Opinion of Probable Construction Cost
Unit Costing Estimate
Prepared for: Gabel Associates LLC
September 20, 2006
by:
DTA DON TODD ASSOCIATES, INC.
Project and Construction Management Services
1000 Broadway>Suite 610
Oakland,CA 94607
Telephone:(510)251-1007 Fax:(510)251-1008
www.dta.com
ENERGY MEASURES
CITY OF PALM DESERT
Palm Desert, CA
ESTIMATE OF PROBABLE CONSTRUCTION COST
EXECUTIVE SUMMARY
Introduction:
This Unit Costing cost estimate represents the probable construction cost of the various items for
the construction of track housings in the City of Palm Desert, CA. Considering the drawings are
not available, certain components, that may be required as part of this project may not be shown or
mentioned in this estimate. Allowances have been made when detail description of equipment,
work definition, or quantities are not available. Material pricing and labor costs are obtained from
historical data and similar projects. The unit costs include material, labor, and subcontractor's
markup, and are based on the design level of documents received.
Documents Received as a Basis of Cost Estimate:
♦ List of Energy Measures Used in the Palm Desert Study.
♦ Phone Conversation with the Architect.
Exclusions:
The following items are excluded:
♦ Hazardous Materials Abatement& Disposal except noted as an allowance in the estimate.
♦ Change Order Contingency
♦ Cost of money
♦ Escalation
♦ Professional Consultants' and Construction Management fees
♦ Administrative costs
♦ Land costs
♦ Ylan checks and inspection
♦ Permits
♦ Off-sitc utilities
♦ Legal and financing costs
♦ Consultant fees and expenses
♦ Contractor off-hours and compressed-time work schedule, if required
♦ Construction phasing
♦ Furnishings, furniture,and equipment
♦ Relocation costs, if required
Possible Additional Cost Items:
Items that may change the Estimate of Probable Construction Cost include,but are not limited to,
the following:
Energy Measures
City of Palm Desert,CA Page 1 of 3
09/20/06
♦ Modifications to the scope of work,drawings, specifications included in this estimate
♦ Unforeseen conditions
♦ Construction phasing requirements
♦ Excessive contract and general conditions, and restrictive technical specifications
♦ Equipment, material, systems or product that cannot be obtained from at least three different
sources
♦ Delays beyond the projected schedule
♦ Any other non-competitive bid situations
♦ Any addenda, changes not included in the basis of estimates.
Uesign Contingency:
A Design/Estimating contingency is included in the summary sheet. This is to allow for items not
shown in the drawings or in absence of technical specifications, and any addenda produced during
the bidding stage. It is also to allow for items included in the front end document, i.e., special
contractual provisions including liquidated damages and minority stipulations, restrictions on
working conditions,etc. No design contingency included.
Design/Estimating contingencies include,but are not limited to the following:
1. Items and systems not shown on the plans
2. Systems not fully designed
3. i�inal specifications
� 4. Final general and supplementary conditions
5. Code clarifications
6. Final engineering calculations
7. Details not designed or drawn
Vote: Unit prices DO NOT include contingencies.
Escalation:
F.scalation is not included in the estimate.
ESTIMATING ASStiMPTIONS AND COMMENTS
GeneraL•
a. Material prices are at 3rd Quarter 200b level; include taxes and contractor's markups.
b. Labor cost is based on prevailing wages.
c. Work to be done during normal business hours.
d. "Chis estimate can vary due to change in scope.
e. Unit costs are based on historical cost data.
f. Assume buildings are not occupied during construction.
g. Quantities are obtained as shown on the drawings.
h. Installation cost,supervision,and coordination for material and equipment are included in the
estimate.
i. General conditions include insurance, office personnel costs,dust control, and other items not
mentioned in Gencral requirements.
j. Design Contingency is not included in the cost estimate.
Energy Measures
City of Palm Desert,CA Page 2 of 3
09/20/06
ESTIMATE OF PROBABLE COnSTRUCTION COST
The estimated Probable Construction Costs reflect the anticipated unit costs of the Energy
Measures in the Palm Desert Study, in City of Palm Desert CA. This estimate is based on a
competitive open bid process with a recommended six or more bids from reputable general
contractors, and a minimum of three bids for all subcontracted items.
Cost of materials, labor, equipment or services fumished by others, and the contractors' or vendors'
methods of determining prices are determined by market and/or economic conditions. Hence, the
Estimator cannot and does not guarantee that proposals, bids or actual project costs will not vary
from this Estimate of Probable Construction Cost.
"I'his Estimate of Probable Construction Cost is exclusive of all costs associated with changes,
modifications or addenda to the drawings and/or specifications subsequent to the preparation of this
estimate.
Energy Measures
City of Palm Desert,CA Page 3 of 3
09/20/06
ESTIMATE OF PROBABLE CONSTRUCTION COST
ENERGY MEASURES Estimate: Conceptual
CITY OF PALM DESERT DTA Job Number: 10-061-001
PALM DESERT,CA Date: 09/20/06
Revised:
Prepared By:DON TODD ASSOCIATES,INC. Estimator: eev/qaq Bidq.Area-SF:
Div Description Qty Unit Cost Eztenslon Sub Unit Cost Mark-ups Total Unit Cost
17.87%
Note:Total Unit Cost includes General Contractor's General Conditions(8%),OH 8 P(7°/,),Bond(2°/.)
DIVISION 7-MOISTURE 8 THERMAL INSULATION
Assemblies With Insulation(Excluded Cost of Wood StudslCeiling Joists/Floor Joists)
R-13 Batt Insulation in 2x4 wood studs walls 1 SF $ 0.67 $ 0.67 $ 0.67 $0.12 $ 0.79
R-19 Batt Insulalion in 2x6 wood studs walls 1 SF $ 0.73 $ 0.73 $ 0.73 $0.13 $ 0.86
R-21 Batt Insulation in 2x6 wood studs walls 1 SF $ 1.03 $ 1.03 $ 1.03 $0.18 $ 1.21
R-19 Batt Insulation in 2x10 wood floor joists 1 SF 3 0.73 $ 0.73 $ 0.73 $0.13 $ 0.86
R-30 Batt Insulation in 2x10 wood floor joists 1 SF $ 1.20 $ 1.20 $ 1.20 $0.21 $ 1.41
R-30 Batt Insulation in(attic)ceiling joists 1 SF $ 1.23 $ 1.23 $1.23 $0.22 $ 1.45
R-30 Batt Insulation in(attic)ceiling joists with radiant barrier 1 SF $ 1.43 5 1.43 $1.43 $0.26 $ 1.69
under roof sheathing
R-38 Batt Insulation in(attic)ceiling joists with radiant barrier 1 SF $ 1.56 $ 1.56 $ 1.56 $0.28 $ 1.84
under roof sheathing
House Wrap
Tyvex on all exterior walls.Installed cost 1 SF $ 0.34 $ 0.34 $ 0.34 $0.06 $ 0.40
DIVISION 8-DOORS 8 WINDOWS
Milgard 4520 vinyl casement,3'x 4',SHGC=0.37(LoE-172) 1 SF $ 40.00 $ 40.00 S 40.00 $7.15 $ 47.15
Milgard 4520 vinyl casement,3'x 4',SHGC=0.27
(Super LoE-w/Cardinal 360) 1 SF 5 43.00 $ 43.00 $ 43.00 $7.68 $ 50.68
Enery Measure City of Palm Desert 9-18-06 Energy Measures
Page 1 of 6
ESTIMATE OF PROBABLE CONSTRUCTION COST
ENERGY MEASURES Estimate: Conceptual
CITY OF PALM DESERT DTA Job Number: 10-061-001
PALM DESERT,CA Date: 09/20106
Revised:
Prepared By:DON TODD ASSOCIATES,INC. Estimator: eev/qaq Bldg.Area-SF:
Div Description Qty Unit Cost Extension Sub Unit Cost Mark-ups Total Unit Cost
17.8 7%
DIV 15-MECHANICAL
Water Heaters
Installation includes piping and fittings
AO Smith FPD-50-251,50 gal.EF=0.58 1 EA S 818.75 $ 818.75
Water Copper piping,fittings,Insul.&valves 1 LS S 688.00 $ 688.00
Gas Steel piping,fittings 8 gas valve,3/4" 75 LF $ 9.61 $ 720.75
Vent pipe,fittings&cap 1 LS $ 225.00 $ 225.00
Installed Cost $2,453 $438 $ 2,891
Rheem 41-RSN,50ga1.EF=0.62 1 EA $ 1,057.14 $ 1,057.14
Water Copper piping,fittings,Insul.8 valves 1 LS $ 688.00 $ 688.00
Gas Steel piping,fittings 8 gas valve,3/4"Dia. 75 LF $ 9.61 $ 720.75
Vent pipe,fiittings 8 cap 1 LS $ 225.00 $ 225.00
Installed Cost $2,691 $481 $ 3,172
State PRV 75NRVT1.75 gal.EF=.52 1 EA 5 1,235.00 $ 1,235.00
Water Copper piping,fittings,Insul.&valves 1 LS $ 688.00 $ 688.00
Gas Steel pipe fittings&gas valve,3/4" 75 LF $ 9.61 $ 720.75
Vent pipe,fiittings&cap 1 LS $ 265.00 $ 265.00
Installed Cost $2,909 $520 $ 3,429
Noritz America corp.N-063S,Tankless gas water heater,EF=0.802 1 EA $ 1,109.00 $ 1,109.00
Water Copper piping,fittings&valves 1 EA $ 584.00 $ 584.00
Gas Steel piping,fittings R gas valve,1-1/2"dia 75 LF $ 14.16 $ 1,�62.00
Vent pipe,fiittings 8 cap 1 EA $ 425.00 $ 425.00
Installed Cost $3,180 $568 $ 3,748
Enery Measure City of Palm Desert 9-18-06 Energy Measures
Page 2 of 6
ESTIMATE OF PROBABLE CONSTRUCTION COST
ENERGY MEASURES Estlmate: Conceptual
CITY OF PALM DESERT DTA Job Number: 10-061-001
PALM DESERT,CA Date: 09/20/06
Revised:
Prepared By:DON TODD ASSOCIATES,INC. Es6mator: eev/qaq Bidq.Area-SF:
Div Descrlption Qty Unit Cost Eztension Sub Unit Cost Mark-ups Total Unit Cost
17.87%
Takagi T-KD20,Tankless water heater Input 185,OOOBtuh,EF=.82 1 EA $ 1,000.00 $ 1,000.00
Water Copper piping,fittings&valves 1 EA $ 584.00 $ 584.00
Gas Steel piping,fittings&gas valve.1-1/2" 75 LF $ 14.16 $ 1,062.00
Vent pipe,fiittings&cap 1 EA $ 425.00 $ 425.00
Installed Cost $3.071 $549 $ 3,620
Water Heater Pipe I�sulation
1"thick pipe insulation
1"pipe 1 LF $ 4.85 $ 4.85 $ 4.85 $0.87 $ 5.71
3/4"pie 1 LF $ 4.68 5 4.68 $ 4.68 $0.84 $ 5.52
112"pipe 1 LF $ 4.40 $ 4.40 $ 4.40 $0.79 $ 5.18
Gasfurnace
AFUE=Annual Fuel Utilization Efficiency
Bryant 310AAV036045,AFUE=0.80,36,000 BTU output 1 EA $ 1,297.00 $ 1.297.00
Gas Steel piping,fittings&gas valve 1 EA $ 575.00 $ 575.00
Vent pipe,fiittings 8 cap 1 EA $ 638.00 $ 638.00
Installed Cost $2,510 $449 $ 2,959
Bryant 311JAV0480070,AFUE=0.80,48,000 BTU output 1 EA $ 1,329.00 $ 1,329.00
Gas Steel piping,fittings&gas valve 1 EA $ 575.00 $ 575.00
Vent pipe,fiittings&cap 1 EA $ 688.00 $ 688.00
Installed Cost $2,592 $463 $ 3,055
Bryant 340MAV036040,AFUE=0.921,36,000 BTU output 1 EA $ 1.445.00 $ 1,445.00
Gas Steel piping,fittings&gas valve 1 EA 5 575.00 $ 575.00
Vent pipe,fiittings 8 cap 1 EA $ 638.00 $ 638.00
Installed Cost $2,658 $475 S 3,133
Bryant 340MAV048060,AFUE=0.921,48,OOOBTU output 1 EA $ 1,470.00 $ 1,470.00
Gas Steel piping,fittings 8 gas valve 1 EA $ 575.00 $ 575.00
Enery Measure City of Palm Desert 9-18-06 Energy Measures
Page 3 of 6
ESTIMATE OF PROBABLE CONSTRUCTION COST
ENERGY MEASURES Estimate: Conceptual
CITY OF PALM DESERT DTA Job Number: 10-061-001
PALM DESERT,CA Date: 09I20I06
Revised:
Prepared By:DON 70DD ASSOCIATES,INC. Estimator: eev/gag Bidq.Area-SF:
Div Description �ty Unit Cost Eztension Sub Unit Cost Mark-ups Total Unit Cost
17.87%
Vent pipe,fiittings 8 cap 1 EA S 688.00 $ 688.00
Installed Cost $2.733 $488 $ 3,221
Split Air Conditloners
SEER=Seasonal Energy eNciency ratio
EER=Enery Efficiency Rating
TXV=Thermostatic Eupansion Valve
Bryant 550AN036 wlTXV,SEER=13.0 8 EER=11.2 1 EA $ 1,079.00 $ 1,079.00
Refrigerant piping 1 EA $ 450.00 $ 450.00
Installed Cost $1,529 $273 $ 1,802
Bryant 539GN048 w/TXV,SEER=13.0 8 EER=11.3 1 EA $ 1,390.00 $ 1,390.00
1 EA $ 495.00 $ 495.00
Installed Cost 51.885 $337 $ 2.222
Bryant 539GN060 w/TXV,SEER=13.0 8 EER=11.5 1 EA $ 1,490.00 $ 1,490.00
1 EA $ 538.00 5 538.00
Installed Cost $2,028 $362 $ 2.390
Bryant 537GN036 w/TXV,SEER=14.0 8 EER=11.9 1 EA $ 1,281.00 $ 1,281.00
1 EA $ 450.00 5 450.00
Installed Cost $1.731 $309 $ 2,040
Bryant 537GN048 w/TXV,SEER=14.0 8 EER=11.9 1 EA $ 1,593.00 $ 1,593.00
1 EA $ 496.00 5 496.00
Installed Cost $2,089 $373 $ 2.462
Bryant 537GN060 w/TXV,SEER=14.0&EER=11.7 1 EA $ 1,830.00 $ 1,830.00
1 EA $ 538.00 $ 538.00
Installed Cost $2.368 $423 $ 2.791
Enery Measuie City of Palm Desert 9-18-06 Energy Measures
Page 4 of 6
ESTIMATE OF PROBABLE CONSTRUCTION COST
ENERGY MEASURES Estimate: Conceptual
CITY OF PALM DESERT DTA Job Number: 10-061-001
PALM DESERT,CA Date: 09/20/06
Revised:
Prepared By:DON TODD ASSOCIATES,INC. EsGmator: eev/qap Bldq.Area-SF:
Div DescripUon Qty Unit Cost Eztension Sub Unit Cost Mark-ups Total Unit Cost
17.87%
Duct Insulation
Assume ductwork=0.41bs per sf
Total weight=1,OOOIbs area=+/-500 SF of insulation
Material Fiberglass duct Wrap Insulation
R-4.2 on all ducts in a typical 2,500 SF house,Inststalled cost 500 SF $ 2.94 $ 1,470.00 $ 1,470.00 $263 $ 1,733
R-6.0 on all ducis in a typical 2,500 SF house,Installed cost 500 SF $ 3.23 $ 1,615.00 $ 1,615.00 $289 5 1,904
R-8.0 on all ducts in a typical 2,500 SF house,Installed cost 500 SF $ 3.81 $ 1,905.00 $ 1,905.00 3340 $ 2,245
HERS measures(installed cost,Not HERS verlfied)
HERS=Home Energy Rating systems
Based on open letter from Califomia's Energy Commission beginning October 1,2005,you must have your home's ducts
tested for leaks when you have a central air conditioner or fumace installed or replaced.Ducts that leak 15 percent or
more must be repaired to reduce the leaks.
Duct Leakage Reduction/Testing for 2 systems,2500 SF house: 1 LS $ 800.00 $ 800.00 $ 800.00 5143 $ 943
Assume 2500 sf house with two Central Air Conditioner&Gas
Buiiding Leakage ReductionlTesting,specific Leakage Area=3.8
or less,2500 house: 1 LS $ 1,200.00 S 1,200.00 $ 1.200.00 $214 $ 1,414
Assume 2500 sf house with two Central Air Conditioner 8 Gas
Furnace System.
Duct Leakage Reduction/Testing for 3 systems,5000 SF house: 1 LS $ 1.200.00 $ 1,200.00 $ 1,200.00 5214 $ 1,414
Enery Measure City of Palm Desert 9-18-06 Energy Measures
Page 5 of 6
ESTIMATE OF PROBABLE CONSTRUCTION COST
ENERGY MEASURES Estimate: Conceptual
CITY OF PALM DESERT DTA Job Number: 10-061-001
PALM DESERT,CA Date: 09/20/06
Revised:
Prepared By:DON TODD ASSOCIATES,INC. Estimator: eev/qaq Bldq.Area-SF:
Div Description Qty Unit Cost Eztension Sub Unit Cost Mark-ups ToWI Unit Cost
17.87%
Assume 5,000 sf house with three Central Air Conditioner&Gas
Fumace System.
Building Leakage Reduction/Testing,specific Leakage Area=3.8
or less,5000 house: 1 LS $ 1,800.00 $ 1,800.00 $ 1,800.00 $322 $ 2,122
Assume 5,000 sf house with three Central Air Conditioner 8 Gas
Furnace System.
Fan Motors
Std.1 HP fan motor in typ.HVAC system supply air handler 1 EA $ 1,134.00 $ 1,134.00 $ 1,134.00 5203 $ 1,337
NEMA Premium E�ciency 1 Hp fan motor in typical HVAC 1 EA $ 1,248.00 $ 1.248.00 $ 1,248.00 $223 $ 1,471
system supply air handler
Std.2.5 HP Fan Motor in typ.HVAC system supply air handler 1 EA $ 1,236.00 $ 1,236.00 $ 1,236.00 $221 $ 1,457
NEMA Premium Efficiency 2.5 Hp fan motor in typical HVAC 1 EA $ 1.472.00 $ 1,472.00 $ 1,472.00 $263 $ 1,735
system supply air handler
Std.5 HP fan motor in typ.HVAC system supply air handler 1 EA $ 1,428.00 $ 1,428.00 $ 1,428.00 $255 S 1,683
NEMA Premium Efficiency 5 Hp fan motor in typical HVAC 1 EA 3 1,603.00 $ 1,603.00 $ 1,603.00 $286 $ 1,889
system supply air handler
DIV 16-ELECTRICAL
Lighting
Std.Bathroom Light Switch 1 EA 5 39.00 $ 39.00 $ 39.00 S7 $ 46
Wattstopper Manual-On(Vacancy)Light Switch 1 EA $ 147.00 $ 147.00 $ 147.00 $26 $ 173
Std 2•Lamp,4'T8 Electronic Ballast 1 EA $ 212.00 $ 212.00 $ 212.00 $38 $ 250
Programmable.Rapid Start Eff.2-Lamp,4'T8 Electronic Ballast 1 EA $ 269.00 $ 269.00 $ 269.00 $48 $ 317
Enery Measure City of Palm Desert 9-18-06 Energy Measures
Page 6 of 6
Appendix C: Savinps Bv Desi_qn Filinp for the 2006-2008 Proqram
to the California Public Utilities Commission
Application for City of Palm Desert Locally Adopted Energy Standards 9/29/06
Savings By Design
1. Projected Program Budget $ 28,458,461
2. Projected Program Impacts
MWh 128,617
MW (Summer Peak) 26.32
3. Program Cost Effectiveness
TRC 2.81
PAC 3.95
4. Program Descriptors
Market Sector: Nonresidential New Construction
Program Classification: Statewide
Program Status: Revised Existing
5. Program Statement
Savings By Design (SBD) will continue to improve upon established successful
approaches to overcome
customer/market barriers to designing �at's New for 2006-08?
and building high performance . Innovation
facilities. SBD will provide the o A new program element to
nonresidential new construction apply incentives to design
industry with a broad palette of efforts only rather than both
technical and financial resources to aid desigr►and construction efforts
them in designing new facilities to the o Targeting specific customer
most cost-effective energy and segments such as hospitals,
resource efficiency standards. SBD clean rooms, and fast food
will also tailor current marketing and • Integration
delivery efforts to further penetrate o Program materials and
into a wider array of market and assistance to include
customer segments. connections with demand
response and self generation
SBD will provide the nonresidential offerings.
o A revised incentive structure
new construction industry with a broad that recognizes the time-
spectrum of technical and financial dependent valuation basis of
resources to assist the industry in the the new Title 24 energy
design of new facilities with the standard.
maximization of cost-effective electric • Other Program Improvements
energy efficiency integration as a o Review of processes and
primary consideration, along with procedures to improve
water, gas, and other related participation
environmental and sustainability
considerations (White Paper, "Energy Efficiency Program Ideas,"NRDC; PAG/PRG
Workshop Recommendations; Green Buildings Action Plan).
California's Title 24 requirements set some of the most stringent energy regulations in
the nation. Title 24, for some market actors, can be very confusing. As a result,
customers and designers need education and guidance just to comply with the
rcquirements. Exceeding these stardard energy performance levels requires an even
higher level of intense design, technical assistance, and motivation. SBD provides the
tools and expertise necessary to exceed standard energy performance levels and achieve
long-term energy and cost savings for the customer.
It's been firmly established in SBD program evaluations that the integrated design
process, when implemented correctly, can lead to highly cost-effective energy savings for
most projects.
Yet, many in SBD's integrated design process, combined with financial
the design
field are incentives, can assist customers in moving beyond initial
unaware of, or cost considerations and towards the realization of long-
prohibited term energy cost savings, avoiding "lost opportunities".
from,
implementing energy efficiency strategies due to a lack of knowledge of the integrated
design process and perceived budgetary constraints. As a result, energy efficiency is
often a"lost" consideration, abandoned in favor of pursuing the"lower initial cosf'
option. SBD's integrated design process, combined with financial incentives, can assist
customers in moving beyond initial cost considerations and towards the realization of
long-term energy cost savings, avoiding "lost opportunities".
SCE/SCE PAG, PRG, Public Workshop, and Whitepaper Recommendations
A number of recommendations have been made during the scheduled program planning
meetings and submitted as whitepapers by interested parties in the 2006-08 energy
efficiency program planning process. Several of the concepts, ideas, and suggestions
have been included as useful additions to the Savings By Design program. Below are the
individual program recommendations and the conesponding actions to be included in the
2006-08 programs.
Recommendatinn: "Look at targeting programs to particular areas or sectors."
Action: Recommendation adopted. SBD plans to continue and expand a variety of
approaches to reach specialized areas of the indusriy. Areas planned for this type of
focus include hard-to reach markets, such as leased office and retail spaces with high
turnover rates; segments requiring a high level of technical support, such as hospitals and
clean room applications; and rapidly designed-and-constructed facilities, such as quick-
service restaurants and agricultural cold storage facilities. Other segments with
specialized needs will be targeted as they are identified.
Recommendution: "Provide a higher incentive tier for the New Construction program, so
that it continues to push the envelope, and ensure it's consistent with the proposed federal
tax incentives. Consider a green building component for higher incentive tiers." Also,
"Provide a cross-marketing approach with the Governor's Green Building Initiative."
Actinn: Recommendation adopted. The Whole Building Approach in Savings By Design
is built around a linearly escalating incentive rate, intended to push designers to aim for
the highest levels of energy efGciency. For the 2006-08 program, SBD will work to
develop an incentive structure for the Whole Building Approach to reflect the time-
dependent valuation basis of the 2005 energy standard and to motivate designers to put a
high priority on strategies that save energy during or�peak periods. Inc luding a"green
building" tier to support and work with industry trends toward sustainability will also be
explored in conjunction with this incentive restructuring.
In addition program incentive structures will be modified across the board to further
encourage owners and design teams to expand their inclusion of energy efficient
opportunities.
Rc�cotnnzendation: "Allow commercial tenants who are renovating existing spaces (e.g.
new HVAC and lighting without touching shell) to participate."
Actio�a: Recommerriation adopted. Savings By Design has always allowed these projects
to participate. However, historical participation has been low because of split incentives.
For the 2006-08 program, a target component, focused on reducing the bamers found in
customers involved in leased office and retail spaces with high turnover rates, will be
added to the program.
Recommendution: "Include building commissioning in new construction programs."
Actiori: Recommendation partially adopted. While it has been well-established that
building commissioning is an effective avenue to ensure savings in new facilities,
incorporating such services into a program has been difficult due to high costs and lack of
standardization in the services offered in the market today. For the 2006-08 program,
mandating prescribed installation standards for lighting and HVAC systems (beyond
what the new code requires) will be adopted. Additionally, the program, through its
Energy Design Resources component(now included in the Education, Training, and
Outreach program), will continue to provide advanced informational resources and tools
to support commissioning efforts within the new construction industry.
Rc�commendutioi:: "Provide incentives for buildings for not installing central air
conditioning in new construction."
Actio�:: Recommendation is already allowed in existing program structure. The Whole
Building Approach component of SBD has always recognized and allowed, and will
continue to encourage, innovative energy efficiency strategies when they are determined
to contribute to real energy savings beyond standard practice.
Recommendution: "Consider the potential building projects associated with seismic
upgrades mandated for hospitals throughout California."
Action: Recommendation adopted. SBD will focus resources to better address the unique
concerns within this segment as activity increases due to seismic upgrading.
Recomme�ndutio�t: "Do not over-allocate funds to SBD".
Actior:: Recommendation adopted. The overall percentage of funds allocated to the
nonresidential new construction area is no greater than allocated in prior program cycles.
6. Program Rationale
SCE's nonresidential new construction program will play an increased role in reducing
the electric energy needs of new and exparriing commercial, industrial, and agricultural
facilities in SCE's service territory. Savings By Design will offer a full spectrum of
support to building owners, architects, engineers, and other specialized consultants,
providing the tools and information necessary to achieve optimum energy and resource
efficiency in their projects.
By providing multr level design, technical, and financial assistance to influence the basic
design of a customer's project, Savings By Design's focused intervention minimizes lost
Savings By Design will offer a full spectrum of support to
building owners, architects, engineers, and other specialized
consultants, providing the tools and information necessary to
achieve optimum energy and resource efficiency in their projects.
opportunities that may result when a building's performance is not a primary
consideration in the design of a project. SCE will work to incorporate other existing
offerings, internal and external to SCE, to assist projects that reflect a cohesive sense of
sustainability that go beyond the traditional aspects of electric energy efficiency. Such
offerings may include coordination with LEEDT" certification and Energy Star"' ratin�;
connections with demand-response, self-generation, and water conservation programs;
partnerships with industry organizations to promote acceptance of new program
approaches by design professionals, and others as applicable.
7. Program Outcomes
Savings By Design will:
• Motivate customers and design industry professionals to integrate energy use and
environmental considerations into their standard process of design to achieve cost-
effective levels of energy and resource efficiency.
• Move customers to design their facilities to achieve long term energy, resource, and
cosl savings, not just minimal compliance with mandated government regulations.
• Support industry trends and developments, such as the US Green Building Council's
Leadership in Energy and Environmental Design (LEED'"') building certification
program and the California Energy Commission's switch to time-dependent valuation
of energy use as the basis of the new Title 24 energy standards.
• Reduce customer confusion through appropriate alignment of SBD marketing
materials with other applicable programs such as Education, Training, and Outreach,
Codes and Standards, Emerging Technologies, the Business Incentive Program, and
the new Sustainable Communities Program.
• Efficiently extend the reach of Savings By Design through support and coordination
with utilit}�sponsored partnership programs such as the UC/CSU Partnership
program, the Collaborative for High Performance Schools, and the various
city/county partnership programs.
• Providc customers with a full spectrum of sustainable energy design consulting and
resources through active collaboration with a network of other"energy" agencies and
programs (water, gas, renewable generation).
• The Business Incentive Program will process and provide resources to the Systems
approach. The move will allow for increased participation and access by market
players.
• Promote available resources to the new construction market players regarding Title
24 Code changes and how to exceed them cost-effectively. Support the time-
dependent valuation of energy sued as the basis of the new Title 24 energy standards.
• identify and capture additional gas energy savings that might have been overlooked
previously.
SCE will continue to collaborate with the statewide Savings By
Design team to share and coordinate program process "best
practices" and marketing strategies, and contribute to tools and
resources that enhance the overall cost-effectiveness of the
statewide program.
8. Program Strategy
Savings By Design will:
• Build on the existing, award-winning statewide program that has been validated and
proven successful for over six years in California. SCE will continue to collaborate
with the statewide Savings By Design team to share and coordinate program process
"best practices" and marketing strategies, and contribute to tools and resources that
enhance the overall cost-effectiveness of the statewide program.
• Design and implement several focused efforts to more effectively reach customer and
market segments where a traditional design assistance/financial incentive offering has
been marginally successful. Areas currently planned for this type of focus include
markets that have not been receptive to traditional program delivery approaches such
as leased office and retail spaces with high turnover rates; segments requiring a high
level of technical support such as hospitals and clean room applications; and rapidly
designed-and-constructed facilities such as quick service restaurants and agricultural
cold storage facilities. Other segments will be targeted as they are identified.
• Devclop a program component that applies incentives to offset increased design costs
rather than increased construction costs. It is anticipated that this will take the form
of a training/certification process that will prepare design prof'essionals to lead and
facilitate an integrated design process with the goal of enhanced energy and resource
efficiency into the majority of their projects, such that no additional construction
costs are necessary. The results of this effort will be tracked and reported towards
program goals.
• Develop and include a full spectrum of energy use and sustainability program
offerings by collaboratively working with applicable gas, water, and other industry
groups. Issues such as energy savings associated with water use efficiency and the
energy impacts of embodied energies in building materials and transportation will be
explored and analyzed to identify potential new sources of energy savings.
• Collaborate with SCG specifically within the SCE service territory, Pacific Gas &
Electric (PG&E) and San Diego Gas & Electric (SDG&E) generally, to assist in the
identification and development of gas energy savings opportunities that have
historically been overlooked.
• Collaborate with
demand Collaborate with demand response and self-
response and generation programs, as appropriate,to combine
self-generation program offerings into a customer-friendly and
programs, aS easy to navigate suite of materials.
appropriate, to
combine program offerings into a customer-friendly and easy to navigate suite of
materials. Technologies, such as building-integrated photovoltaic systems and energy
management systems that are flexible enough to respond to new demand response
strategies, are obvious strategies that can be integrated into a whole building approach
to educate designers in the benefits of their adoption in new construction.
9. Program Objectives
The Savings by Design program will provide cost-effective energy savings and demand
reductions as the result of installments which occur from the 2006-08 program. SCE's
energy savings and demand reduction goals are provided in the detailed tables included
with this Application. In addition, SCE intends to facilitate between 9 and 19 integrated
design projects during the 2006-08 program period and between 4 and 7 projects in niche
markets (e.g., leased spaces, hospitals, quick-service restaurants) during the 2006-08
program period.
10. Program Implementation
The Savings By Design program will promote two successful components—Whole
Building Approach (Integrated Design) and Systems Approach to its customers with new
construction or major remodel/renovation projects:
The Whole Building Approach(WBA) is the preferred method ofestimating energy
savings within SBD because it enables a design team to consider integrated, optimized
energy efCciency solutions. This customized approach provides and requires a high level
of energy analysis and interactive feedback, which generally leads to much more efficient
design decisions. The key to maximizing energy choices, using this type of collaborative
effort, is intervention at the earliest phase of building design.
For 2006 —2008, the statewide Owner's incentives for electrical energy savings offered
by the WBA will increase in a straight-line to 25% better than code. The incentive will
range from $.10 to $.25 per kWh saved. Incentives for therms will range from $.34 to
$1.00 per therm saved.
The Systems Approach(SA) is a simplified performance-based method utilizing a
calculation tool known as CaNCCalc to optimize efficiency choices. It is straightforward
and participants may find it the best available option for certain types of projects. The
Systems Approach makes it easy for designers to look at the interaction of systems within
their project, rather than individual equipment or fixtures. The Systems Approach is
provided to address small, simple facilities where integrated opportunities are limited, as
well as projects where program intervention may come late in the design phase.
For 2006— 2008, statewide agreement was established to increase the following
incentives:
Interior Lighting and Daylighting Systems - $.OS per kWh
HVAC* - $.14 per kWh and $.60 per therm
Process and Other Systems - $.08 per kWh and $.60 per therm
Service Hot Water- $.60 per therm
Projects participating under the S,� the cap will be increased to match the WBA cap at
$150,000 per project.
* Incentives offering will be dependent on the establishment of a downstream HVAC
incentive component.
SBD also offers Design Team incentives to support the extra effort for integrated energy
design and to provide an incentive to reward exceptional design accomplishments within
the context of the Whole Building Approach. ln addition, SCE will pilot and develop a
mechanism by which incentive dollars can be effectively applied to the design phase such
that incremental costs are minimal and no financial offsets to the construction costs will
be necessary. It is anticipated that this will take the form of a training/certification
process that will prepare design professionals to facilitate an integrated design process
focused on energy and resource efficiency into the majority of their projects.
For 2006 — 2008 DTI incentives will parallel the Owner's incentive offering by 1/3.
Track A DTI will allow 50% of the DTI to be paid upon Agreement acceptance by the
Utility, if the project performs at least 25%better than code.
The Track B DT'I will continue to require "parametric analysis with life-cycle cost to
enhance decisiorrmaking requirements. These analyses are contained in a report that is
presented to the project owner and accepted by the Utility. Under this option, 50% of the
DTI will be paid upon Agreement acceptance by the Utility. The stipend will not be
offercd.
Savings By Design will continue offering Design Assistance (DA) services. DA services
have proven successful over the past years in providing energy calculations, design
facilitation, and energy recommendations that provide the guidance and information
building owners need to make well-informed design and constructiondecisions for their
facilities. In many cases building owners find that design assistance services is the main
influencer in their including energy efficient options in their building, even more
influential than a direct incentive. In these cases, Savings By Design will track and
report such results toward its program goals.
Savings By Design will continue to build on the successful Alternative Delivery Method
which invites third-party market players to implement program goals in specific hard-to-
reach niches such as facilities with dominant refrigeration loads. For 2006-08, the
program will explore a similar effort to more effectively extend the reach of the program
into the arena of leased commercial spaces with high turnover rates. Other niche markets
that may respond to a higher level of technical support will also be considered as they are
identified.
SCE will also explore the potential of extending Targeted Approaches to market
segments or industries where alternative interventions may be more effective than the
traditional design
assistance/incentive The integrated design process approach. For
example, simplified embodies the ability to design a facility approaches to
working with the segment of
rapidly designed-and- �th @Il@I'gy ef�ICl@I1Cy InCIUd@d 1S 811 constructed
building types would objective from the start. consider such
facilities as quick service
restaurants. Customized Targeted Approach will focus on market segments such as
hospitals and clean room facilities.
The integrated design process embodies the ability to design a facility with energy
efficiency included as an objective from the start. When this is done correctly, it is
assumed that the overall cost of construction for the energy efficient building will not
exceed the cost of the building at minimum code compliance. As such, the focus of this
offering is to provide an incentive to a certified design professional that provides an
energy efficiency influence at the earliest stages of the design process using the
integrated design approach. Therefore it is of utmost importance to insure the integrity of
design professional's application of the Integrated DesignJWhole Building approach
process, to ensure the highest level of cost-effective energy efficiency in the final design.
SCE will fully support the inclusion of other energy sources and sustainability issues in
its program delivery to its best ability. The first phase of including sustainability is to
educate the field delivery team which is composed of new construction representatives
(NCRs) and Business Customer Division Account Management.
SCE will bring in experts to identify energy savings measures for water and gas through
technology solutions. In addition, educational opportunities will be provided to enhance
the current understanding of self-generation applications, renewables, and the issues that
might influence their use by customers.
Materials will be provide for those existing agencies and programs whose current
offerings may be leveraged to raise the awareness and adoption of certain measures by
customers in their building desi�n. Existing agencies and programs include Water
agencies, SCG, USGBC LEED , CHPs, Energy Star�`, and others.
5CE's SBD representatives and staff will work closely with the SCG's SBD team to
provide enhanced recommendations that will lead to higher fidelity gas savings in new
construction projects and major renovation projects in SCE service territory.
11. Customer Description
Savings By Design specifically targets design and construction industry decisior�makers:
architects, mechanical engineers, electrical engineers, lighting designers, developers,
contractors, energy consultants and, of course, building owners and operators.
SBD is available to the following customer participants: New construction or major
renovation projects in nonresidential market segments (commercial, governmental,
institutional, agricultural, and industrial).
SCE will explore the potential of developing targeted approaches to market segments or
indush-ies where alternative interventions may be more effective than the traditional
design assistance/incentive approach. Simplified approaches for rapidly designed-and-
constructed
building types SCE will explore the potential of developing targeted
such as quick approaches to market segments or industries where
service alternative interventions may be more effective than the
restaurants traditional design assistancelincentive approach.
and
agricultural
cold storage f'acilities will be considered, as well as others where potential is identified.
Customized approaches for complex and specialized facilities, such as hospitals and clean
rooms, where informed design assistance can be more persuasive than incentive dollars,
will be actively explored.
Applicable program support and targeted efforts involving third-party driven activities
will be competitively bid following SCE procurement diversity policy.
12. Customer Interface
Both the Systems Approach and the Whole Building Approach, as described in the
"Program Implementation" section, follow the same delivery process. The process
begins with initial contact between the customer and/or the customer's design team and
an SCE new construction representative. These representatives are technical support staff
trained to understand the dynamics and language of the design and construction industry
and are focused primarily on the delivery of the Savings By Design program.
SCE will evaluate and explore options enhance access to partic ipating in the program
offerings while providing checks and balances to insure the integrity of the process and
the results.
The owner completes and submits to the NCR a brief Letter of Interest that documents
the specifics of the project, the design team(if known), and the owner's interest in
participating in and receiving program benefits.
An initial meeting between all members of the design team, the NCR, and supporting
technical staff is then held to discuss the parameters of the project and determine the
appropriate approach for the project. Design assistance, matched to the needs and scope
of the project, is offered for the project to identify and validate energy savings strategies
appropriate to the facility under design.
The NCR and supporting technical staff continue to provide recommendations, feedback,
consulting, and energy use analysis, as needed, to the owner and design team as the
project proceeds through the various design phases. Such activity can vary in duration
from months to years depending on the requirements of the customer's needs. This phase
of the process culminates in a list of agreed-upon energy efficiency strategies that will be
incorporated into the project.
At this point, an Incentive Agreement between the owner and SCE is executed. The
execution of the Agreement generally should take place before the onset of building
construction. When applicable, an Incentive Agreement between the design team leader
and SCE is exccuted after the Owner Agreement has been finalized. These agreements
can extend up to four years.
When the building construction has been substantially completed, SCE will make an orr
site visit to each participating project to confirm compliance with the terms of the
Agreement. Once the inclusion of all measures/strategies has been confirmed, the owner
is paid the agreed-upon incentive amount. Should the completed construction vary from
the Agreement, the available incentive will be recalculated to reflect the actual
construction, and resulting energy savings, before the incentive is distributed.
13. Energy Measures and Program Activities
13.1. Measures Information
Measure information is provided in the corresponding cost-effectiveness calculator and
portfolio workbook.
Calculation assumptions for eQUEST and CaNCCalc are located in Appendix 1, Section
-IV. Calculation Assumptions.
13.2. Energy Savings and Demand Reduction Level Data
Energy savings and demand reduction information is provided in corresponding cost-
cffectiveness calculator and portfolio workbook.
13.3. Non-energy Activities
• Outreach/marketing activities, including annual Energy Efficiency Design Awards,
co-sponsored with the AIA, California Council, to raise the awareness of successful
high performance facilities within the design professions.
• Feasibility studies and pilot program components as needed to develop new program
approaches to more effectively engage targeted market segments.
• Training and resource enhancements in concert with the Energy Design Resources
component (now included in the Education/Training/Outreach program).
• SBD will participate in various conference and workshops to develop tools and
concepts that will aid the program expand its education and efforts to encompass
sustainability issues, Demand Response, water conservation, and enhanced gas
savings into the program.
• SBD will continue to provide scholarships for students to attend the UC/CSU's
Sustainability Conferences. The annual conference provides the architectural
students with the rare opportunity to "see first-hand" that sustainability issues are
growing in importance. The scholarship also provides SBD with a participatory role
on a panel that answers questions regarding the SBD program and the compliance
characteristics of potential customer projects.
13.4. Subcontractor Activities
SCE recognizes that including other industry experts in certain program implementation
processes enhances and extends the value of program benefits that customers can receive.
SCE will use competitively bid solicitations to select appropriate consultants for any and
all of the following activities:
• Project-specific energy simulation design assistance for Whole Building Approach
projects.
• Integrated energy design support, such as charrette facilitation and process training.
• Program marketing and delivery in technically specialized, hard-to-reach industries.
13.5. Quality Assurance and Evaluation Activities
To the extent subcontractors implement portions of the program, quality assurance
measures will be pirt in place to ensure that standards of service and claimed savings have
been achieved.
13.5.1. Expected Number/Percent of Inspections
One hundred percent of the participating projects are verified during an oirsite visit as
soon as a facility is substantially complete.
13.6. Marketing Activities
The primary marketing agent for Savings By Design is SCE's New Construction Services
group, working in concert with SCE customer representatives to leverage long-standing
relationships with assigned customers. For 2006-08, SBD program information will be
included in marketing materials of the Business Incentive Program and other
programs/services as appropriaie, lo extend the reach of the program through that
delivery channel and reduce customer confusion as to program availability.
Additionally, individual memberships in pertinent local industry organizations such as
American Institute of Architects, American Society of Heating, Refrigeration, and Air-
conditioning Engineers, the Illuminating Engineers Society, the US Green Building
Council, Construction Specifications Institute, and the International Council of Shopping
Centers are leveraged to build a presence in, and an informational resource for, members
of thcse organizations.
- },xF ��a.,� x.- -
,
�r�-�r- -
Brochures—one a ers 3- 6 ro�ects/ ear
SBD Statewide Brochure 1 for ro ram eriod
SBD Inserts(for ro ram chan es) 3 for ro ram eriod
Targeted Market Fact Sheet 4—6 per year
Trade Journal Ads/Articles 1 - 3 er ear
Ener E�icienc Desi n Awards 1 event
Conferences: CEE, AIACC, AIA 4— 8 per year
National, AEE, ASHRAE, USGBC,
Urban Marketplace, Green Expo.
AIACC S onsorshi /Desi n Awards 1 er ear
14. Program Changes
Savings By Design (SBD) for 2006 will modify its incentive structure. It will affect the
following:
Cate or l�entive Rate
Interior Li htin and Da li htin S stems $0.05/kWh
HVAC* $.014/kWh
Process and Other S stems $0.08/kWh
*The HVAC incentive will be offered to all measures not covered by the Comprehensive HVAC progr�m
or if a"downstream"incentive component is established.
In addition, the Whole Building Approach incentive structure will be modified. The
statewide Owner's Incentives for electrical energy savings will increase in a straight-line
up to 25% better than the Title 24 Code requirement. The incentive rate will range from
$0.10 to $0.25 per kWh saved. Incentives for therms will range from $0.34 to $1.00 per
therm saved.
Project caps will be established at 50%of incremental measure costs or$1,500,000
dollars whichever is lower.
The SBD program will evaluate establishing an incentive structure for the WBA which
will reflect the time dependent valuation basis adopted in the 2005 Title 24 energy
standard.
For 2006 — 2008 the Design Team Incentives (DTI) will parallel the Owner's incentive
offering by one-third. Track A- DTI—will allow 50% of the incentive to be paid upon
acceptance of the Agreement, by the Utility, if the project performs at least 25% better
than code. The balance of the incentive is paid at the time the project is completed. If
the project does not meet the 25% standard the incentive is paid in full, at the time of
project completion.
Track B — DTI —will continue to require"parametric"analysis with life-cycle cost
analysis as part of the report. These features have proven to be a beneficial tool in a
customer's decision making process. Under this option 50% of the incentive is paid
upon acceptance of the Agreement by the Utility. However, a stipend will no longer be
offered.
SBD will continue offering its Design Assistance Services (DAS). DAS, which include
energy calculations, design facilitation, training, and energy recommendations, have
proven very successful in aiding customers' decision to implement energy efficiency
measures over the past years. ln may cases building owners find that DAS is a
significant influence in moving forward on energy efficient measures, anecdotally in
some cases, more than a direct incentive. In cases such as these, SBD will track and
rcport such results towards its program's goals.
Although SBD has been very successful in its delivery and influence on the design and
new construction market, it will over the next 3 years, evaluate and modify those
processes that will help increase customer partic ipation while maintaining the program's
high standards of quality services and energy savings.
12-4-06 Analvsis in Response to BIA Desert Chapter Comments
Actual Home Desiqns. In response to the BIA Desert Chapter's comments in
the 11/7/06 letter, at the 11/30/06 meeting with the City and through input via
ConSol, Gabel Associates has run the following home designs which meet the
current Title 24 requirements to evaluate the cost effectiveness of the upgrading
them to meet the proposed Palm Desert Ordinance. One change from previous
analysis is the inclusion of zonal controls as an energy measure, since most
houses in Palm Desert have two HVAC systems to meet the extreme cooling
loads in the summer months.
2,131 SF Plan Submitted to P.D. Building Department.. As designed, 10.4%
total fenestration area (222 sf of total glazing):
• R-38 roof with radiant barrier
• R-13 exterior walls
• 64% of the slab floor modeled as Exposed Mass, 36% as Covered Mass
• Aluminum Low-E windows, U=0.51, SHGC=0.36 w/ a few overhangs
• Furnace: 80% AFUE
• (2) 3.5 Ton Air conditioners: 13.0 SEER , 11.1 EER [HERS], TXV [HERS]
• R-8 ducts in the attic
• DHW: 40 gallon gas water heater, EF=0.65; no pipe insulation
2,131 SF Plan w/ BIA Recommended Measures. Same design as the plan
above submitted to the Palm Desert Building Department, but with the following
BIA recommended measures to meet Title 24:
• R-38 roof with radiant barrier
• R-13 exterior walls
• 100% of the slab floor modeled as Covered Mass
• Vinyl Low-E windows, U=0.39, SHGC=0.30 w/ a few overhangs
• Furnace: 80% AFUE
• (2) 3.5 Ton Air conditioners: 13.0 SEER , 11.1 EER [HERS], TXV [HERS]
• R-6 ducts in the attic
• DHW: 50 gallon gas water heater, EF=0.62; recirc. w/time-temp controls
2,349 SF Plan Submitted to P.D. Building Department.. As designed, 15.1%
total fenestration area (354 sf of total glazing):
• R-38 roof with radiant barrier
• R-13 exterior walls
• 66% of the slab floor modeled as Exposed Mass, 34% as Covered Mass
• Aluminum Low-E windows, U=0.51, SHGC=0.36 w/ several overhangs
• Furnace: 80% AFUE
• (2) 4 Ton Air conditioners: 13.0 SEER, TXV [HERS]
• R-8 ducts in the attic
• DHW: 40 gallon gas water heater, EF=0.65; no pipe insulation
City of Palm Desert Ana/ysis in Response to BIA Concems 12/4/06 Page 1
2,349 SF Plan w/ BIA Recommended Measures. Same design as the plan
above submitted to the Palm Desert Building Department, but with the following
BIA recommended measures to meet Title 24:
• R-38 roof with radiant barrier
• R-13 exterior walls
• 100% of the slab floor modeled as Covered Mass
• Vinyl Low-E windows, U=0.39, SHGC=0.30 w/ several overhangs
• Furnace: 80% AFUE
• (2) 4 Ton Air conditioners: 13.0 SEER , 11.1 EER [HERSJ, TXV [HERS]
• Zonal controls credit
• R-4.2 ducts in the attic
• DHW: 50 gallon gas water heater, EF=0.62; recirc. w/time-temp controls
1,800 SF Plan w/ BIA Recommended Measures. Same design as the 2,131 sf
plan with 10.4% total glazinq area, but with reduced floor area to represent an
entry level home design; including the following BIA recommended measures to
meet Title 24:
• R-38 roof with radiant barrier
• R-13 exterior walls
• 100% of the slab floor modeled as Covered Mass
• Vinyl Low-E windows, U=0.39, SHGC=0.30 w/ a few overhangs
• Furnace: 80% AFUE
• (2) 3 Ton Air conditioners: 13.0 SEER , 11.1 EER [HERS], TXV [HERS]
• R-6 ducts in the attic
• DHW: 50 gallon gas water heater, EF=0.62; recirc. w/time-temp controls
1,500 SF Plan w/ BIA Recommended Measures. Same design as the 2,131 sf
plan with 10.4% total q_lazing area, but with a further reduced floor area to
represent a small entry level home design; including the following BIA
recommended measures to meet Title 24:
• R-38 roof with radiant barrier
• R-13 exterior walls
• 100°10 of the slab floor modeled as Covered Mass
• Vinyl Low-E windows, U=0.39, SHGC=0.30 w/ a few overhangs
• Furnace: 80% AFUE
• (1) 5 Ton Air conditioner: 13.0 SEER , 11.1 EER [HERS], TXV [HERS]
• R-6 ducts in the attic
• DHW: 50 gallon gas water heater, EF=0.62; recirc. wl time-temp controls
City of Palm Desert Analysis in Response to B/A Concems 12/4/06 Page 2
2,396 SF Plan, ConSol PMTG1. This design with a total s�lazin� area of 16.5%
uses following measures as designed to meet Title 24:
• R-38 roof with radiant barrier
• R-19 and R-13 e�cterior wa11s
• 100% of the slab floor modeled as Covered Mass
• Vinyl Low-E windows, avg. U=0.39, SHGC=0.34 w/ a few overhangs
• Furnace: 80% AFUE
• (2) 4 Ton Air conditioners: 13.0 SEER, TXV [HERS]
• R-6 ducts in the attic
• DHW: 50 gallon gas water heater, EF=0.62; recirc. w/time-temp controls
2,629 SF Plan, ConSol PMTG2. This design with a total �lazinq area of 13.9%
uses following measures as designed to meet Title 24:
• R-38 roof with radiant barrier
• Mostly R-19 exterior walls, some R-13 walls
• 100°l0 of the slab floor modeled as Covered Mass
• Vinyl Low-E windows, avg. U=0.40, SHGC=0.36 w/ several overhangs
• Furnace: 80°lo AFUE
• (2) 4 Ton Air conditioners: 13.0 SEER, TXV [HERS]
• R-6 ducts in the attic
• DHW: 50 gallon gas water heater, EF=0.62; recirc. w/time-temp controls
3,498 SF Plan, ConSol PLTG3X. This design with a total glazins� area of
14.3% uses following measures as designed to meet Title 24:
• R-38 roof with radiant barrier
• R-19 and R-13 exterior walls
• 100% of the slab floor modeled as Covered Mass
• Vinyl Low-E windows, avg. U=0.40, SHGC=0.29 w/ almost all overhangs
• Furnace: 80% AFUE
• (2) 4 Ton Air conditioners: 13.0 SEER, TXV [HERS}, EER=10.7 [HERS]
• R-4.2 ducts in the attic
• DHW: 50 gallon gas water heater, EF=0.60; recirc. w/time-temp controls
City of Pa/m Dese►t Analysis in Response to B/A Concems 12/4/06 Page 3
Residential Ener�v Measures Needed to Meet the Palm Desert Ordinance.
Incremental energy measures to meet the Ordinance have been evaluated. The
following energy features have been modified from the Title 24 measures so that
these home designs use 10°l0 less TDV energy than the Title 24 standard design.
2,131 SF, As DesiQned
• Zonal controls credit (one unit serving bedrooms only with separate thermostat),
no additional cost with two separate HVAC units in the base case
2.131 SF. Startin4 With BIA Title 24 Measures
• Zonal controls credit (one unit serving bedrooms only with separate thermostat),
no additional cost with finro separate HVAC units in the base case
• (1) 15.0 SEER / 12.7 EER 3.5 Ton air conditioner: incremental cost = $300 to
$1200 ($800 average from online cast comparison]
2,349 SF. As Designed
• Zonal controls credit (one unit serving bedrooms only with separate thermostat),
no additional cost with two separate HVAC units in the base case
• EER verified by HERS inspector: incremental cost = $50
2,349 SF. Startinq With BIA Title 24 Measures
• Reduced Duct Leakage on both systems [HERS) _ $1200
1,800 SF, Starting With BIA Title 24 Measures
• Zonal controls credit (one unit serving bedrooms only with separate thermostat),
no additional cost with two separate HVAC units in the base case
• (1) 15.0 SEER / 12.7 EER 3.5 Ton air conditioner: incremental cost = $300 to
$800 [$600 average from online cost comparison]
1,500 SF, StartinA With BIA Title 24 Measures
• (1) 15.0 SEER / 12.7 EER 4 Ton air conditioner: incremental cost = $300 to $800
[$600 average from online cost comparison]
2,396 SF, ConSol PMTG1, As Designed
• Zonal controls credit (one unit serving bedrooms only with separate thermostat),
no additional cost with two separate HVAC units in the base case
• EER verified by HERS inspector: incremental cost = $50
2,629 SF, ConSol PMTG2, As Desiqned
• Zonal controls credit (one unit serving bedrooms only with separate thermostat),
no additional cost with two separate HVAC units in the base case
• EER verified by HERS inspector: incremental cost = $50
3,498 SF, ConSol PLTG3X (a), As Designed
• Zonal controls credit (one unit serving bedrooms only with separate thermostat),
no additional cost with two separate HVAC units in the base case
City of Pa/m Desert Analysis In Response to B/A Concems 12/M06 Page 4
Cost Effectiveness
The cost effectiveness of ineeting the requirements of the Ordinance is
ca{culated for the homes analyzed above. The total incremental first cost of the
measures needed to meet the Palm Desert Ordinance is divided by the
incremental annual energy cost saving to establish the Simple Payback for the
additional energy features. The study uses an average utility rate price of
$0.16/kWh for electricity and $0.92/therm for natural gas.
Table 1a: Summary of Energy Savings from Palm Deserf Energy Ordinance
Electricity Gas Electricity Nat. Gas Total Annual
Saving Saving Cost Saving Cost Saving Cost Saving
Home (kWh/yr) {therms/yr) ($) ($) ($)
Desi n
2,131sf As Designed 1096 -7 $175 $-6 �169
2,131sf BIA Measures 1093 -7 $175 $-6 5169
2,349sf As Designed 1405 -4 $225 $-4 5221
2,349sf BIA Measures 947 8 $152 $7 5159
1,800sf BIA Measures 959 -7 $153 $-6 5147
1,500sf BIA Measures 706 0 $113 $0 ;113
2,396sf PMTG1 1045 -8 $167 $-7 a160
2,629sf PMTG2 1489 -3 $238 $-2 $236
3,498sf PLTG3X 815 -12 $130 $-11 5119
City of Palm Desert Analysis in Response to BIA Concems 1Z/4106 Page 5
Tabie 1 b: Summary of Simple Payback for Palm Desert Energy Measures
Incremental First Effective
Cost Compared w/ Incremental Simple Payback
Home Title 24 House (S) Annual Energy (Years)
Desi n Min/Av / Max Cost Savin S Min /Av / Max
2,131sf As Designed a300/a550/$800 a155/$143/a131 1.9/ 3.8 /6.1
2,131sf BIA Measures 5300 /$550/$800 5155/a143/$131 1.9/ 3.8 /6.1
2,349sf As Designed $50 �219 0.2
2,349sf BIA Measures $1200 a101 11.9
1,800sf BIA Measures $300 /$550/$800 $133/$121 /a109 2.3/4.6/7.3
1,500sf BIA Measures a300 /a550/$800 a99 /$87 /$75 3.0/6.3/ 10.7
2,396sf PMTG1 $50 a158 0.3
2,629sf PMTG2 $50 $234 0.2
3,498sf PLTG3X $0 $119 0.0
Note 1: The Effective Incremental Annual Energy Cost Saving includes a
reduction in energy cost savings to account for the after-tax carrying cost of
increasing a 6.0%APR home mortgage amount by the Incremenfal First Cost.
Based on this data, the Palm Desert Ordinance increases the cost of
construction by approximately $0.10 to $0.50 per square foot, for which the
energy cost savings as a simple payback from first cost is typically in the range of
3 to 10 years. If the overall cost of new residential construction, including the
cost of land and other related permit fees, is in the range of$300 to $350 per
square foot, the Ordinance will increase that overall cost by approximately one-
tenth to three-tenths of one percent. At current utility rates, the expected energy
savings within the first 7 years of building occupancy will pay for the increased
first cost, after which the building owner will make a projected profit of 10% to
15% return-on-investment for the extra energy measures required by the
Ordinance.
City of Pa/m Deseri Analysis in Response to B/A Concems 12/4/06 Page 6
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to bringing new energy efficient technologies and wiih ihe bes��way to e>;ce�d enerc�y cade by at leasi
meihodologies�co the marl;eiplace. We adhere io high 15°/o using comiori-relaied efficiency 7`eaiures. Field
quality resource-ef�ficient design sianclarcls ai��l corn���ii -iraining,third pariy inspeciions and diagnosiic iesiing,
io promoting business practices that respect the earth and mari:eting are included.
and the environment.
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Co115AI produces all necessary�nergy analysis docu- The California Green Builder program helps builders
m�ntation requio•ed io ir�eet Title 24�and Iriterna�ional conserve resources,preserve ihe environment,and
Energy Conservation Code(IECC)standards and will measure the impact through significant improvements
in energy efFiciency,indoor air quality and comfort,on-
also review construction documents to help identify
costly design problems. site waste recycling,and water and wood conservation.
ComfortWise Green is the turn-key program that helps
Eng�neering builders differentiate their communities,while providing
Based on nationally accepted ACCA Manual J, S, and D, environmental benefits.
all ConSol drawings are done on AutoCAD and inciude
detailed performance criteria and important installation `�O��ot°�V1f'i'e't,��
details. Dryer vent calculations and plumbing are also ConSol is strategically aligned to design a cutting-edge,
available. turn-key package that uses solar technology in home
building and generates phenomenal product differentiation
' �N"��'�..���°a+a=:� in the marl<etplace. Zero Energy f�leighnorhoods(ZEN)
Bringing new techniques and technology to the market- combine the most energy efficient homes with a solar electric
place has been ConSol's passion. COnSoI's consulting system that generates electricity for each home in the
department can take production builders to the n�xt community. Gain a strategic alliance with the utility company
level by helping them mainstream new technologies and due to reduced peak impact.
construction practices.
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� Created by homebuilders for homebuilders,the voluntary program meets the
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CGB homes are designed and built to exceed California's stringent Titl2 24 energy
efficiency standards by at least 15%. CGB homes wili feature:
• Improved insulation installation
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• High-efficiency glazing(SHGC and U-value<0.40)
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"non green"homes by featuring:
• Innovative plumbing systems and fixtures
o Parallel hot water piping; or Hot water recirculation system
o Ultra-low flow toilet(s) (= 1.28 gp�
o High-efficiency clothes washer as a buyer option(water factor 5 6.0)
• New designs for landscaping and irrigation
o Front yard landscaping with a maximum of 75%turf, drought tolerant
plants, and a high-efficiency drip irrigation system
o Weather-based irrigation controllers that provide only the amount of
water required to sustain the landscaping (Smart Controller)
OR
� Enrollment in the Metropolitan Water District of Southern California's
Califomia Friendly water conservation program. For more information,visit
�o��,��•��t��-,����.F�,�„�a. (Rebates may be applicable to MWD customers
only. Other water districts may offer similar rebates and programs)
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manufactured with feed stock primarily from sustainable forests. Certi�ed wood
products that come from forests overseen by the Sustainable Forestry Initiative
(SFI),American Tree Farm System (ATFS), the Canadian Standards
Association's Sustainable Forest Management Sysiem(CAN/CSA)or the Forest
Stewardship Council (FSC)will qualify under the California Green Builder
program.A managed forest harvests timber at a rate that can be permanently
sustained,while leaving the ecological functions intact,enhanced, or restored.
Additionally,wood is saved:
• By using computer-controlled saws which make accurate compound cuts.
• Engineered wood products provide greater strength and flexibility
• Because the cutting and fitting of the wood is done in a controlled
environment,cut offs and short lengths are utiiized with maximum efficiency
s Engineered wood components allow for easier passage of ducts, plumbing
and electrical wires in the house
• It is estimated that each engineered wood floorjoist system saves one tree,
and each engineered wood truss system saves two trees from being
harvested
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CGB homes require Air Conditioning Contractors of America(ACCA)design
protocols to ensure comfort and adequate ventilation. In addition, Minimum
E�ciency Reporting Values(MER�6 filters and use of low/no Volatile Organic
Compounds(VOC)help improve indoor air quality. CGB features include:
• HVAC system designed by a licensed engineer and installed to ACCA
Manual J, S and D
• HVAC ducts diagnostically tested per CGB tight duet protocols
• MERV 6 HVAC filters installed in return air grills
• Low or no VOC for paints, lacquers,floor underlayment and carpet
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Residential new construction waste accounts for 20 to 30%of the solid waste
generated in California each year.The CGB program requires that at least 50%of
construction waste be diverted from landfills, Reducing the amount of job-site
waste helps the environment and helps jurisdictions comply with state recycling
and waste-reduction requirements.
Alternatively, CGB builders in areas with no construction waste diversion facilites
must help local jurisdictions establish such capabilities.
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The California Green Builder program is a true win-win program. It was conceived
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� savings is a plus for local officials.The California Green Builder homebuyers
benefit now and in years to come from the features that are provided by CGB.
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• CGB is consistent throughout California
• Locai jurisdictions may provide:
o Recognition, improved plan check, and/or lower fees
o Advantages in the entitlement process
a CGB Provides:
o Point of purchase marketing support
■ Green Builder brochure
■ Recognition plaque
o Product differentiation
o Local recognition via press releases
o Recognition in California Builder Magazine
o California Energy Code training
o Annual CBIA Golden Nugget Award Competition for California Green
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o Website identifying California Green Builder Communities
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The California Green Builder prograir helps local jurisdictions throughout
California comply with the stringent requirements of the California lntegrated
Waste Management Act(AB939). CGB also helps jurisdictions deal with
challenging and complex water issues.Jurisdictions find that the voluntary CGB
program addresses water conservation in a realistic,win-win scenario.
Government and jurisdiction officials perceive CGB builders as being better
stewards of the land than non-green builders. CGB offers building officials and
builders an opportunity to work together to improve the quality of life within the
community.
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Studies show that homebuyers think building green is the way of the future.
Homeowners want less impact on the environment, lower energy bills, and cleaner
air.They find that after moving into their new, CGB homes that reduced utility bills
provide long-term savings,and find their homes require less maintenance.
Buying a CGB home:
s Produces a feeling of satisfaction at having done something good for the
environment
• Improves indoor comfort level, reducing dust, pollen,and other pollutants
• Saves money on utility bills over the life of the home
• Helps conserve precious natural resources, such as wood and water
• Helps lessen the impact on local landfills
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�� 1. A builder submits the completed California Green Builder(CGB) ��
�'�„�: � - � Application to the program coordinator with required attachments and$400
'�� � application fee(payable to California Green Builder Program)for each
subdivision seeking CGB certification to:
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� California Green Builder °'�
Attn: Steve Ruminski-CGB Program Coordinator
• i 7407 Tam O'Shanter Drive
�FJ Stockton, CA 95210
(866)340-8912
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2. The CGB program coordinator reviews submitted materials for accuracy
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designate the project as"CGB Applicant"pending final inspections of the
'" " su b division(s).T he time for pre liminary app lication review s hall not exceed
ry �„��'`;; three weeks once ali material has been received.After reviewing project
! documentation, Builder is entitied to use the Ca�ifornia Green Builder Logo
� and to designate the project as a California Green Builder subdivision or
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3. The CGB certified inspector� shall inspect the first unit of each floor plan
within 2 working days of receiving an inspection request from the Builder. ,
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� Q:Aren't there a lot ofi"green"programs out there?What's so special about
.� -'� California Green Builder?
A:Yes.Many are points-based,complicated and driven by outside groups.
�" - � � ' California Green Builder keeps the building industry in charge of the agenda,
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;,,� ,,,. � : ,. � helps localities meet mandates in water and wood savings and waste diversion,
'k"�' `" and is volunta It includes inde endent third a
ry. p p rty inspections and diagnostic
testing of energy features.
� ��rr Q: Don't homes built under"green"program guidelines cost more to build?
A: Many green building techniques can be applied at little or no extra cost.
Additionally, heating,cooling,and water use in green buildings often cost less so
' - up-front costs to buyers can be offset in the long run.
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��� �"°�y�t' Q: Isn't"green" building more complicated?
y "� � A:The requirements for CGB include building to exceed energy efficiency
�; ' � standards;diverting at least 50%of construction and jobsite waste; reducing water
��`` use b at least 20,000 allons com ared to contem ora 'non reen" homes;and
' �� � " include guidelines for effcient lumber and wood us ge. Many builders are nearly
.`.._::: .. meeting CGB standards without knowing it.
� f Q:Why should builders want to build under the CGB guidelines?WhaYs in it
for them?
u A: Many builders are already building partially green,and there are many
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� � Instructions
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:,�, •�•�;,.I��, Fill out the Online Application. Once ail fields have been filled out, press the
� "Submit" button.The next page will display the application in a printable form.
��' � y`� •. Print two copies, one to keep for your records,and one to sign and submit with all
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process must be completed for each subdivision. Supplemental forms,protocols,
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