HomeMy WebLinkAboutInformational Item - Energy Data for PD City Halla/z z./ar 44r ,vV �
AUG 0 8 1005
Memorandum CI'yOFpq�MDESERT
l� CITY MANAGER
a
City of Palm Desert
Office of the Assistant City Manager
Community Services Division
To: Carlos L. Ortega, City Manager
From: Sheila R. Gilligan, Assistant City Manager for Community Services
Subject: Energy Data for Palm Desert City Hall
Date: August 5, 2005
Attached is a report from Bob Kohn relative to energy data for City Hall. You will note that
he was only able to go back to the year 2000; it is next to impossible to get any data from
1999 back, as Edison does not have the ability to do so. I think the information provided
by Bob will suffice for the purposes of answering Dick Kelly's questions.
Please let me know if you have any questions.
SHEILA . GILLIGAN, ACM
' COMMUNITY SERVICES DIVISION
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CITY OF PALM DESERT
Community Services Division
Staff Report
REQUEST: REPORT RELATIVE TO ENERGY DATA FOR PALM DESERT CITY
HALL
SUBMITTED BY: Sheila R. Gilligan, ACM/Community Services
DATE: September 8, 2005
CONTENTS: Energy Data Report
RECOMMENDATION:
By Minute Motion, receive and file the report.
BACKGROUND:
Attached is a report which responds to a City Council inquiry relative to energy data for Palm
Desert City Hall. As you read through the charts, you will see that, with the exception of a few
months, energy consumption has been reduced; in some cases, the reduction has been
significant. The lack of reduction could be attributed to weather, since the two months that
stand out with increases are April and May, and weather conditions are more than likely the
culprit. In conservation efforts, it is difficult to predict what the temperatures will be, particularly
in those two months. While we went as far back as records are available (Year 2000), we will
be keeping monthly records from this date forward for comparison purposes.
Staff will be available to answer any questions at the City Council meeting on
September 8, 2005.
SHEILA R.
ITY SERVICES
SRG:mpg
CARLOS L. ORTEGA
CITY MANAGER
CITY OF PALM DESERT
DEPARTMENT OF COMMUNITY SERVICES
INTEROFFICE MEMORANDUM
To: Sheila Gilligan, Assistant City Manager Community Services
From: Robert Kohn, Director of Special Programs AQ /
Date: August 2, 2005
Subject: Energy Data for City Hall
In response to Councilman Richard Kelly's request, I have prepared the following report.
A complete analysis of the electric utility usage for City Hall, by an Energy Engineer, would
be necessary in order to provide Mr. Kelly with a thorough answer. A complete analysis
would include key components such as: weather/temperature information, building
modifications, as well as the consideration of any additional employees and electronic
equipment. All of these factors affect electrical consumption.
According to Tom Bassler, the air conditioning units were replaced in the early 90's just
before the cool roof was applied. A couple of months later, the computerized a/c control
systems were removed and a/c units now operate with individual thermostats. Tracking
when these things took place would take a considerable amount of time. The City Council
may have approved the project on a particular date with completion six months later.
In addition to the variables mentioned above, utility records beyond three years are not
readily available from Southern California Edison. I can gather data back to June 2002
through SCE's on-line Bill Manager Program. We have pulled information from the City's
records back to 2000; however, June and July of 2001 were missing and could not be
located.
Attached is a table showing energy usage and cost from 2000 to 2005. You will notice that
the monthly and annual cost and usage has been reduced, or remained relatively flat.
Staff believes that the savings could be attributed, in part, to the energy efficiency and
conservation measures the City has undertaken.
I have also included the solar generation from the parking structure.
MEMO TO SHEILA.DOC
SCE ELECTRICITY COMPARISON
FOR YEARS 2000-2005
kW Amount kW Amount kW Amount kW Amount kW Amount kW Amount Kw Amount
3anuai(1%U* V*MW*,,� 3j763361k 37 "Rk0;V0' 4�,931,80*1 j,�$4,546;3*,,W36,565Vv"- C$4,QW.'6 t%39,297,�,V 0, j$W,441.744, -VI, 220,581.
P40 t lia Q'
Feb(uaryn F&41,88"4$3,931},40 *.j34,08&'l'ow$3,6591.,3Aj V�32,'8W%j'jj$4,7f9j75r, W33,843gKW3,893.0jv fF435,,134wW$4,309.2* ft.34,267')F Vl'jZ12,QW'
I %-j$Z4,509'.9-V
Mare it,, `42,'4M &4,114,7%) 1834,200M!K$3,827.54 W933,225g,- &$4,846,$*. JR39,945& fi$4;221'40% kW'47,147ft 11,01212-.061 W, 3,212w jj$-4d55.43§ tl240,5092 b$25,377..74.
,87 =46,43.QM$.S�197.49'tio,49;575ftgi,$4,445'.00I'WZ55,528071$28;057.1I
kaj84M 4962,04M U$6,111.9* JW48,72= ff,$5,5493ldl k%42.,529% a$6;748j51,f fijj53,583j*r$4,513.77,0 W52',-39" IA$5,187.51p,:.%,608 - X$5;15(,.441 *317;ZQN ij'$33,267-3tj
June%,= lkl69,940M fi$8,465.3'89 jW4,-S60W$8,015.50§ 1*56,913ift f$10,622.001.1 0p_60,347W r,$6,284;15;i' j%,S8,302Wll; jrj$6,44:3`36* 0.'352,8340^3$46,021.67
July,*PS %'-'74 W $10,703.
.MOIR S$9.656,753 JkNat Ava4Q &'Not-Avail.4f U67,1%ar� �ilftqg� jffl�,38M J$f-1,761-.'62�-W70,393j, 2A -50d, &NofAwajjN k Not-Avajl.lj Wl-28,4M6MW �$43,234.86#,
I ,li.$9,925.27&*No$AvadSgNof-,4va'[, t JMUL,65Q*,1.�13;,48*66igi.65,732W.9$13,655.38f9f67,5<)2fft$ll,f69.7,#,Mi4oOAvailX-.RNorAvait&k.4t.276,090RN,$50,'175-Q5�l,
September% U64,200W F$9,'691.92#. a-,45V,121*4 kjt8469 08;q W55j127M, 1$12,385.741 W 60,720A rt$12,478,5233%57,351s �$12,225.6-4 !jNo4Avail,% yjNoeAvJirS Iff288,5670 lf54,A6.-A
OctWmr'M,v &*- 56; 1604, r ft�45,54*,"�: �,$fl;702.UWW�Avail;4 &49,96aU V,$5-,7,3#.293 JR44,55LM I$f-1,306.111 W§,V0W-,jr . jk..Npf Avag.& jg.�St,856Wt %$47.7,019:651
*verfiWAj jH427,48iftff$3,948.86§ W33,240W&4,797j9& M34,1.9-Wlf,.$517W,63% &3%9061* M$7,530,391 lf!35,682103$5,949.6324K'fAvai1'4r,!Nol A\,ailW *181,5032 tq$27,836.66V',
ppceftecn 0.30,720jS W$3,766,55L! W30,9608 lr$4,445.'4* W-16' 1 $3,930.63ft W42120*4 ft$4;573.61j W40,604.K V wo
4"
�Smlw-.iow-tVI m1V1: "m,M1twa""vw V.A. 3ft 1 1.11, TOTALS 663,240 $72,934.63 394,920 $52,541.38 535,299 $94,944.48 602,479 $89,891.04 598,789 $87,575.93 277,287 $28,643.15 3,072,014 $426,530.61
110VAMM0,19aw awl No p -M aq,10
r"aft
SOLAR ARRAY - CITY HALL PARKING STRUCTURE
QTY
Unit
Unit in kWh
Max =
40.8
Watt- Hour
( = 0.041 kWh)
Min =
-
Watt- Hour
Average =
4.7
Watt- Hour
( = 0.005 kWh)
Total kWh betw. 6/1-12/13 =
22,245
Watt- Hour
( = 22.3 kWh )
Extrapolated annual total kWh =
41,241
Watt- Hour
( = 41.2 kWh/yr )
Extrapolated annual total $ _
$6,249
$/yr Qa annual
average rate
The Actual Data Loqqed
December
1,635
Watt- Hour
November
2,854
Watt- Hour
October
1,911
Watt- Hour
September
4,778
Watt- Hour
August
4,540
Watt- Hour
July
3,952
Watt- Hour
June
2,575
Watt- Hour
(= 1.64 kWh/mo)
(= 2.85 kWh/mo)
(= 1.91 kWh/mo)
(= 4.78 kWh/mo)
{ = 4.54 kWh/mo)
(= 3.95 kWh/mo)
(= 2.58 kWh/mo)