HomeMy WebLinkAboutAgenda Bill 3A 11/16/2009~ ~
CITY OF PETALUIVIA~ C.AL'IEORNIA ~°~
~ AC~EI~ ~ A~I~,L Novernber 16, 2005
A~enda Title: Discussion,,and Possible Adopfion of a Resolution 1Vleeting Date: Nov. i 6, 2009
Approving Energy Efficiency Block Grant Strategy, Option A, for Submittal
to the U.S. Departrnent of Energy, and Autharizing City Manager to Execute Meetin~ '~'ime: 7:00 PM
All Related Documents
Gate~Ory: , 0 Presentation ^ Appoinfinents ^ Consent ^ Public Hearing ~ Unfinished Business ^ New Business
I)epartment: Direcfor: Contact Person: Phone Number:
Public VJorks Vi'ncent Marengo Diane Ramirez % 776-3674
Larry Zimmer
'I'otal Cost of Proposal or Project: $51•4,50.0 Name of Fund:
Eriergy Efficiency and Conservation Block Grant
Amount Bud~efed: $514,500 EECBG allocation is Since grant will pay on a reimbursement basis, up-
allowed for preparation of the "Strategy" and front costs will be paid from PW CIP Fund
implementation of Energy Conservation Measures Account Number:
~ 3160
Current ~'und Balance:
$`12,645,801
Recommendation: It is recommended that the City Council. fake the following action:
Approve Energy'Efficiency Block Grant Strategy, Option A, for submittal to the U.S. Department of Energy, and
authorize City Nlanager to execute alLrelated documents.
1. 0 First reading of Ordinance approved unanimously, or with unanimous vote to allow posting prior to second reading
2. ^ First reading of Ordinance appxoved withoutunanimous vote: Ordinance has been published/posted prior to second
reading; see Attachment .
3. ^ Other action requiring special notice: Notice has been given, see Attachment
Summarv Statement:
Included :in the American Recovery and Reinvestment Act of 2009 (ARRA) is the Department of Energy'sti
Ener,gy Efficienc,y and Conservation Block Grant Program (EECBGj. The ~City of Petaluma is entitled by ~~
_.:
formula:to'$5:14,500 of EECBG':furids. The first step in obtaining authori~zation to expend these funds is to
prepare an energy improvement "Strategy" and~submit for approval to the Department of Energy by December 1,
2009'~. The S~trategy cornpil~es a list of the ~activities~ ~that the City intends to complete with the block grant fund,
documenting the energy improvements, the savings in energy and associated utility costs, and the greenhouse gas
ernission reductions.
Attachments to A~enda'Packet Item:
~ 'L.. Resolution
2. EECBCr Strategy Option A ~
3. EECBG Strategy Option B(alternative)
4. , Eriergy Conservation Nleasures ~
~
--_ -
iZev'ewed b Finance Direetor:
Re~iewed by City Attorriev: . .
A rove b Ci 1Vlana er:
. ~ -
te: fV"~-~ '~ ~
- - ~ ---. ~ _
_ Date: Date:~ /'~- -o
ReV #l ~
Date Last Revlsed~: ~11~/9/09 .
F-1e: S:ACIP~Division~l'rojects\Ene.rgy~Efficiency Anil ConservaYio^
~ Block Grant G22604010\DesignA330 PC~DC;-City~Council\20O9. I l.l G
~~~
Approve Strate~y\F[N~AL ~16 ~pnrove EECBG~ Strateay.Docx
CITY OF PE'TALUlViA, CAI;IFORNIA
NOVEMBER iG, ZOO9
AGENI)A REPORT
FOR
DISCUSSION AND POSSIBLE ADOPTION OF RESOLUTION APPROVING ENERGY
EFFICIENCY BLOGK CBRANT STRATEGY, OPTION A, FOR SUBMITTAL TO THE LT.S.
DEPARTMEN'T OF ~+ NERGY, AND AUTHORIZING CIT~' 1VIANAGER TO ~XECUT~ ALL
I~LATED DOCUMENTS
l. RECOMMENDATION:
Approve Energy Efficiency Bloek Grant Strategy, Option A, for submittal to the U.S.
Department of Energy, and authorize City Manager to executea all related documents. ~
2. BACKGROU .ND'
Included in the American Recovery and Reinvestment Act of 2009 (ARRA) is the
Department of Energy's Energy Effieiency and Conservation Block Grant Program
(EECBG). The City of Petaluma is entitled by formula to $514,500 of EECBG funds. In
order to receive this money, the City of Petaluma is required to submit an application. There
are two parts to the application: the standard federal forms, and the Energy Efficiency and
Conservation Strategy (EECS or Strategy), both of which can be submitted together.
However, for those agencies that need technical assistance or more time to formulate a
Strategy, i~t is aTso acceptable to iriclude a request for~ funding to prepare the Strategy in the
initial application. ~S~taff submitted the in~itial application in June, requesting funding for the
Strategy only. On September 21, 2009, Council resolved to engage Cogent Energy as~ the
technical consultant to assist staff with the Strategy preparation, and directed staff to reserve
as much Block Grant funding for project implementation as possible.
Staff is using additional resources provided at no cost through PG&E. Concurrent with the
EECBG application, ~staff requested an integrated audit from PG&E for the largest facilities:
City Hall, Community Center, Police Department and Airport. Staff is also scheduling
lighting audits for the fhree Fire Stations.
The DOE allows only 120 days for the investigation and development of the Strategy.
Imrnediately following the Council meeting, staff inet with Cogent Energy and Kenwood
Energy (PG&E's contractor) to discuss the timeline for identification of the Energy
Conservation 1Vleasures. From September 28 to October 7, both contractors surveyed the
existing electrified and gas-powered equipment, estimated its current energy usage and
efficiency rating, identified the replacement equipment, estimated the energy savings and
calculated the return-on-in~estment.
~Staff ~did not include a few types of projects within the ,strategy analysis for specific reasons.
Renewable energy systems (solar photovoltaic, solar hot water, wind turbines, etc.) were not
included so that this particular effort could be focused on increasing efficiency and reducing
energy costs. Energy efficiency projects have the opportunity to reduce energy bills in the
same way renewable energy would, but typically yield a faster return on investment.
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Additionally, reducing energy' use first allows a reriewable system to be reduced in size and,
therefore, cost. A contemporary slogan encapsulating fhis idea is "Reduce then Produce."
Building envelo,pe improvements (i.e. double-paned w'indows, exterior insulation, weather
stripping) were not analyzed because the project cost is often very high and the energy
savings comparatiyely small, creating very slow return on investment. LED streetlight
conversion was not considered, as there is not enough information at this time to calculate
project costs, savings or return on investment. Additionally, due diligence with other city
departments and the community has not been performed.
The provisions of the American Recovery, and Reinvestment Act do not allow any
expenditure of stimulus funds on casinos, aquariums, golf courses, zoos and swimming
pools.
The final Strategy, acceptable for submittal to the Department of Energy, will include a
prior-itized list of Energy C~onservation Measures, a cost estimate, and estimated energy
savings for each measure: ~ No plans or specifications are required as part of the Strategy.
3. DiscvssioN:
In the agenda report for the September 21, 2009 meeting, staff discussed focusing the block
grant funds on projects with the shortest payback period. However, highly prioritizing longer
payback projects may be mare beneficial fo the eity. After auditing the City facilities, the
consultant confirmed that 90% of the heating/ventilation/air conditioning (HVAC) equipment
is severely beyond its useful service life.
Staff recommends the projects listed as Option A, which are prioritized by energy savings and
estimated savings from not only energy usage, but also maintenance, repair, and replacement
cost. Staff ranked prioritization of equipment, and added the consultant's analysis of net
present value (NPV). The replacement of these items assists the City with replacement of
deferred maintenance items and, indirectly, saves staff time fixing aged equipment. Option A
creates significant energy and greenhouse gas (GHG) emission reductions, which is the
intended use of the stimulus funds.
The alternative Option B includes measures based on staff's previous recommendation of
prioritizingprojects with the shortest return on investment.
EECBG funds .received must be obligated by City Council to a specific project or program
within 18 months of the DOE award date to the City. All EECBG funds must be spent within
36_months of that award date. ~
Included in each of the options is a 10% contribution for the creation of a countywide building
retrofit program. The Sonoma County Transit Authority (SCTA), has taken the lead in
Sonoma County's Regional Climate Protection Coordination Plan (RCPCP), and has been
submitting grant applications to supplement the design and implementation of such a regional
strueture, in order to' attract more funding in the future. Future funding from the state and
federal government will go to regional partnership programs. It is SCTA's intent that the
building retrofit program will have a proportionate presence in all areas of the County. Staff
recommends supporting this program, since Petaluma's contribution of $51,450 will assure
the City's future participation and a share of future grants that may be received.
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4. FINANCIAL IIVIPACTS:
The EECBG of $514,500 will pay for development of the Strategy, the recommended list of
Energy Conservation Measures, the Countywide Retrofit/Renewables Program and project
management time associated with the implementation of the measures.
All costs must be initially fronted by the City, but will be reimbursed by the grant. City staff
will not issue any notices to proceed or spend any funds beyond the initial award to complete
the Strategy until staff has received notice from the Department of Energy that the City has
been authorized to expend the grant funds.
Onee staff has received the subsequent award from the DOE, appropriate plans will be made
to design and bid indiviclual measures for construction and/or installation.
Proposed Project Costs
Consultanf $54;040
Staff'- Pro~ect Mana ement $35,000
Count wide Retrofit Pro ram $51,450
Other Im lementation Measures $374,010
Total EEGBG Funds $514,500
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ATTACHM~NT 1
• RESOLU'TION
APPROVIN,G ENERGY EFFICIENC.Y BLOCK GRAN~' STRA'~EGY, OPTION A, FOR
SUBMITTAL '~'O THE U.S. DEPARTMENT OF ENERG.Y, AND AUTHORIZING CI~'Y
MANAGER TO EXECUTE ALL RELATEI) I)OCUMENTS
WHEREAS, the City has beeil allocated $514,500 of Energy Efficiency and Conservation Block
Grant (EECBG) funding; and
WHEREAS, in order to qualify for EECBG funds, an Energy Efficiency and Conservation
Strategy (Strategy) must be submitted, which provides specific Energy Efficiency Measures that can be
implemented within the grant funds; and
WHEREAS, staff submitted the required application to the Department of Energy (D.O.E.)
requesting approval of up to $120,000 of EECBG funds to prepare the Strategy; and
W~IEREAS, to optimize use of EECBG grant funds, ,staff worked with a consultant to prepare
the Strategy that compares the energy efficiency of various types of improvements, their cost to install,
and savings in energy costs; and
WHEREAS, a selection of Energy Conservation Measures, Option A, has been recommended
for implementation; and
W~IEREAS, ten-percent of the EECBG funds will be distributed to Sonoma County
Transportation Authority for use in the Countywide Retrofit/Renewables Program; and
WgIEREAS, a notice to proceed will not be issued on any Energy Conservation Measure until
the City signs the Assistance Agreement with the Department of Energy obligating the use of the
EECBG funds.
NOW, ~'I~EREFORE, BE I'T RF;SOI:VED that the City Council of the City of Petaluma:
1. Approves the Energy Efficiency Block Grant Strategy, Option A, for submittal to the U.S.
Department of Energy, including the following proposed project costs:
The transfer.of $51,450 to the Sonoma County Transit Authority for the countywide Building
Retrofit Program; a budget of $374,010 for Energy Conservation Measures; an amount not to
exceed $54;040 for a professional services agreement with Cogent Energy; and up to $35,000
for staff to manage the Measures over the life of the grant, for the total sum of $514,500.
2. Authorizes the City Manager to execute all related documents.
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Ehergy Conser,vation :IVleasures Option' A- Based on Replacement Priority
CH-8 City Hall Replace 40'ton space cooling liquid cfiiller
PD21 Police Dept Replace.l0 ton HVAC Unit w/spec's similar to
Garrier 48PG
CH-6 City Hall Replace 4YOn HVAGUnits w/ spec'ssimilar to
Car~ier 48PG
Cava41 Cavanaugh Replace;~l)~80 MBH &~~1) 125 MBH gas
Center furnace w/high efficiency condensing
rans-18 Transit Replace~(1)3=ton ~& (1) 4-ton Packaged, Gas-
Center ElectricRTU's
CH-7 Citv Hall Replacerl2don HVAC Unit w/ spec's similar to
CH-9 City Hall Replace electricfumace w/ condensing unit a
new~Heat~PUmp (spec's similar [oiCarrier
F1-13 Fire.Station 1~~ Replace ~2)Packaged 5-ton~Gas-Electric RTU's
PD-20 Police Dept Replace 4~ton HVAC.Units w/ spec's;similarto
Carrier,:48PG
-- _ -- ----~
A`T'PQ~C~ISV9~~~~~' ~
ECM Opt A-Council, Page 1 -
~
Energy Conservation IVleasures.Option B- based on fastest return on investmeni
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Payran-9 301 Payran Clean tfie coilsof condensing~units~serving (2)'
walk-in coolers
CH-0 City Hall Pipe Insulation ,.
PD-17 Police Dept PipelnsulationrHot Water Heater
Air-2 Airport Vending,Miser
CH-10 City Hall VendingMiser
PD-22 Police Dept Vending Miser
Payran-42 301~Payran Lighting Retrofit
SC-43~~ SeniorCenter LightingRe[rofit
CY-44 CorpYard Cighting~Retrofif
MIC-6 Mary Isaak
Center Install premium~efficiency motorsonsupply
fans of AHU-1, AHU-2:and AHU3i
Air-05 Airport Lighting Retrofit
CY-46 Corp Yard Lighting Retrqfit
Cava-47 Cavanaugh
Center Lighting Retrofit
CH=3 City Hall Air Handler VFDs
CH-9 City Hall Replace electric:furnace.w/~.condensing~:unit a
new Heat Pump (spec'ssimilarto Carrier
Payran-10 301Payren ReplaceT121ightingw/TB~~]ighting
Aii-1 Airport Install.a new Heat~Purrips,w/efficienty
specificationssimilar~to'a Carriec'25HNA9~
CH-5 City Hall Space Heating-8oiler CRangeout ~~
PayrenJ 301 Payran Replace 4he320 MBH Lennox gas~furnace w/~a
high efficiency condensing furnace ~
CC-16 Community
Center Replace pump_mbtor;wJ~Hi;E,motor
fC-15 Community
Center Install a new Heat.Pump
PD-19 PoliceDept Replace3~.ton.HVACUnits~w/~.spe2ssimilarto
Carrier 48PG ~ ~
PD 21 Police Dept Replacel0 ton HVAC Unit w% spedssimilar to
Ca~rier 48PG'
PD-20 Police.Dept Replace 4~ton HVAC Units,w/'spec'ssimilar to ~
Carrie n 48P. G
Mus-19 Museum Separate'-0HW from~HHW~system,',install point-
of-use~elect~ic water heaters.in~restroom
Co`rp=4, CorpYard~. Replace;Bldg. G Kennef 7:5 -ton,~100%~.OA ,
p"ackaged', gas-elect~idRTU
SC-12 Senior Cenfer Replace:flVAC system AC 2 with (1) 100 MBH
gas~~furnace'and~associa4ed 5-tonremote~:air
F1=13 ~ Fi~e'S4a4ion:1~ Replace(2)Packaged~:5=tonGas=ElectricRTU's '~
~ T~of.al "~~~trtnu8l ~~ `~~ --z ~~ tie '" ~~ C7re4nhnuse:
0~~. ~ ~~ ~ ~v~ ~~~ i ~' ~~ ~~ ~\ ~ \p ~~ ~ ~
kWhfyq~~ ++c t~a `~~stimafed?otal of Recammendetl~ECNt's Gas
$dV~dX~~ ~ ~SB~vEd...aR.... ~ ~ .... ; . ~ ~ ~. ,~~ ~\~~~~~ % Reduction3
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,'«~(~ ( !~~''`„'.: T a- ~~ .~-i ~ - ti 'i ~~' ~
~ 110 547 $24.548 07 Y ~ $371~284 47 ~ ~ 71
.a.i,~ ~r:~~i~ y~N , , ~: ~,~;,..>~~~, .,~ ~,, ~ w~~~
* equivalent tons of C02
~ ~~~~~~~~~ ~
ECM Opt B-Council, Page~l -
~
Energy Conservation Meas~
Energy Project
M&0 Saved Cost SPB
Rating Rating AatinR RatinR'
Payran-9 301-Payron CleanthecoilsoFcondensingunitsserving~2) Thismeasureassumestfiatcleaningthe"coilsoftheair-moledcondensingunrtsseniingtf%ewalk-in 7;619 3.8 - $ 1,2D8 $ - S 1;208 ' 1;8 ` 0.4 S 527 ,S 1,524 $ (997) . -0:8
" walk-incoolers coolerswillsignificantlyimprovetheirabilirytorejettheattotlieoutdoors.This.willYesultinan
7 6 1 improvemeMin#heEERofthecondensingunit.lmplementingthismeasuremayallowtfie
additionaf on~e-tfirough-type watervwoled condenser section to'6e valyed OFF, resulting in water
wnsenAtion. ~ }
CH-4 City Hall Pipe Insulafion Un insulated hot water pipes condutl and radiate lieat into the atmosphere, resulting in increased 969 - 0 $ 136 ; 0:2 $ 141 $ 38 $ 103 0:8
energy cosu. Thermal insulation will eliminate most of the heat loss, saving energy.'Some
additionaladvantagesofpipeinsulationinclude:protedionfromfreezing,stabilityofprocess
41 2 Z tempe~ature, noise reduction, and reducing the Iwd. Insulate approximately 20 feet of~ly2" coppet '
pipe in the main public restroom of the East Wing of the City Hall.
~
PD-17 Police Dept Pipeinsulation. Hot Water Heater Un-insulated hot water pipes conduct and rediate heat intothe atmosphere, resulting in increased 0 - 16 $ 19 0:1 $ 25 $ 8 $ 17 0.9
energy costs. Thermal insulation will eliminate most of the heat loss,'saving energy. Somle ,.
46 1 3 additional advantages of pipe insulation indude: protection from free:ing, stabildy of process ~'
temperature, noise reduction, and reducing the load. Insulate approzimately 4 feet of 3%4" copper I
pipe in tfie "Sally Port." , I_
Airv2 Airport Vending Miser Gold 6everage vending machines consume an averoge of 40D watts, costing as much as $SOO to 1,402 - D $ 239 ' 0.3 1.0 $' 332 $ 90 S 242 1.0
operate per year. Vending Misers use passive inBared sensorsto power down vending machines
36 5 4 whenthesurroundingareaisunocwpied. VendingMiserwillautomaticallyre-powerthe;vending ~
machine at one to three hour intervals to ens6re that the product stays cold.
CH-10 Gty Hall Vending Miser Cold beverage vending machines consume an average of400 watts, costing as much asS5D04o 1,4D2 - 0 ,. $ 197 03 S 332 S, 90 S 242 1.2
operate per year Vending Misers use passive infrared sensors to power tlown vending'machines,
37 3 5 , whenthesurroundingarea`isunoccupied. VendingMiserwillautomaticallyre-powerthe~vending
machine at onedo.three hou~ inteaalsto ensure thabthe product stays cold.
PD-22 - Police Dept Vending Mlser Cold beverage vending machines"consume an ave~age of 400 watts, costing as mucfi as $SOO to 1,402 - - $ 197 03 $ 332 $ 9D $ 242 1.2
operate per year: Vending Misers u3e passive infrered sensors to power tlbwn vending machines
38 4 6 when tliesurrounding area is unoccupied. VendingMiserwill automatically re-powerthe;vending
machine at one to three hour iotervalsto ensuretliat the productstays cold. However, the location
of thismachine may very well be in a high traffic area =this may reduce the stated savings.
Payran-02 301 Payran Ligh4ing Retrofd This measure proposes to install T8lampsin place of the existingT121amps. 4,206 13 - $ 559 1.0 $ 1,810 5 841 $ 969 1J
24 8 7
SCd3 Senior Lighting Retroft This measure proposesto install TS lamps in place of the existing T121amps. 7;059 23 - $ 939 ~ 1.7 $ 4,467 S 1,412 $ 3,055 3.3
13 10 $ Center ~
.
CY-44 Cor Yard
P Li htin Retrofif.
B 6 Thismeasure ro osesto'installT8lam sin laceoftheexis[in T121am s:
p P P' P B
P ) 8,613 2:9 - $ 1,146 I 2Ip $ 5;941 $ 1,723 $ 4,218 3:7
9 11 9 .
.
MIC-6' Mary lsaak Install premium efficiency motors on supply T6is measure considers replacing thesupply#an motorsforthe (3) AHUs with premium;effcienty 7,693 09 (235) $ 1,303 $ (195) $ 1,108 '; 0.4 lA $ 4,753 $ 1,006 $ 3,747 3.4
Center fans of AHU-1, AHU.2and AHU-3 motors. The e~tiency oftfie existingmofors maybe as1ow as'85%, while:premium effcieacy ~
, motors af the same size can be over 92%effmient: The fans will haJeto be resheavetlto capture all
the savingsbecause the fans will delivermore air if thepremium efficienry motor is installed on ttie
same sheaves.?he gas usage will mcrease slightly, because the.old ineffcient motor adds heat to.
10 13 10 the aic Thismeasure is!appropriate here tiecause the AHUs operate 24 hours a day,sevemdays;a '
week. This will resuR in a shorter pay6ack on the investment Premium efficiency motors also fiave
~ ancillarybeneftslike long life, less heat produced, less noise and hetter quality bearings.
i
.
Air-45 Airport Lighting'Retrofit TliismeasureproposestoinstallT8lampsinplaceoftheeXistingT121amps. 13,748 6.1 - $ 1,828 14 33 $ ~14,969 $ 2;750 ;S, 9,219 5.0
3 16 11 '
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CY-46 CorpYard Lighting•Retrofit ThameasureproposestoinstallT8lainpsinplaceoftheexistingT121amps. 3,883 1.1 - $ 516 ~ D.9 $ 3,788 $ 7Z7 ~5 3,Oll 5.8
26 9 12~ ~,
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-
Cava-47 Cavanaugh LigBting Ret~oft ~ This measure proposes ro install T8lamps in place,ofthe existing.T121amps. 6,221 4.4 - $ 827 1.5 $ 6,455 $ 1,?44 ;5 5;211 6!3
ll 14 13 Center ~ e..~. ' .
CH3 CityHall AirHandlerVF~s BothairhandleisservetheFastWin`g.Theunrtsarecon3tantvolumewithwatertoairheat 14,151 09. 0 $ 1,991 ' 3iA
~ 7.8 $ 15,652 $ 1,374 ;$', 14;378 7;2
exthangers. Tfie retrofit consists of installing a vanablefrequency drive on.the supply and retam,fan
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marked 2 21 14 motors,variahlevolume,terminalsand,performingcontrolsmodificztionstoallowihespeetl'ofthe
fan to vary tosatisfy tfie space.temperature setpoints. , I;
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CH-9 Citq Hall Replace eiectric furnace w/ condensing unit a Replace both electric fumaces w/"2 ron condensing uoits, one close to eo8-of-life, with new Bigfi &752 1:8 0 S 1~231 , 3:1 51 $ 10;400 $ 355 $' 10,0A5 8I2
newHeaYPump(specssimilartoCarrier effdenryheatpumpswithspecifcationequaltoorgreaterthanaCa~rier25HNA9. • ~
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Payran 10 301~~Payran Replace T121ighting w/ T8ligliting This measure proposesto instalf T8lamps in place of the eaistingT121amps ln fact,.give n~the~age of 2;764 0;8
-
$ 438
$
$ 436^ I 0-7, 3:1' 56,076 $ 490 $ 5,588 12:8
the lighting fi~Rures; the facility may deode ro replace the entire futures. Thud-generation or 4
'premium' TS lamps and rapid elearonic start ballasts are remmmended. A T12 to T8 conuersion
28 12 16 can offer substantial reduction in energy usage. The latest T8 hghtmg is alsoscotopically enhanced;
i.e. it has more blue light than before, bringing the effed doser to daylight: This improvesvisual
comfort..
Air-1 Airport Install a new HeatPumps w/ efficiency Replace old "2 ton wall heat pumps, whichare close to end-of=life, with new high efficienry heat S;D52 23 0 ~$ 861 .',I 1.2 6:5 $ 13,D00 $ 569 $ 12,431; 34:4
specificationssimilartoa{arrier25HNA9 pumpswithspecificationequaltoorgreaterthanaCarrier25HNA9. inmoderatedimates;heat
pumps offer an energy-efficient altemative to furnaces and aiP conditioners. Like the refrigerator,
16 14 19 17 fieat pumps use elec[ricity to move heat from a cool space into a warm space, making the cooi
space cooler. During the heating season, heatpumps move heat from the cool outdoors into the
warm inside space; during the moling season, heat pumps move heat from a cool indoorspace into
ihe warm outdoors.•Because a heat pump moves heat ratherthan generate heat, heat pumps can
CH•5 Ciry Hall Space Heating Boiler Changeout Replace the existing hot water boiler witha higli effcienry condensing boiler. Standard 6oilers are - - 3,531 $ 4,237 I 21.5 39:0 S 78,000 $ 1,700 S 76,300 18:0
about 80%efficient at full load when new. As a boiler ages, the efficiency drops. In addition, most
1 29 18 hoilers operate at part load mnditioos most afthe time. The condensing boiler is more eff¢ient at
all loads, 6ut particularly at part load tonditions, reaching eff~ciencies as high as 98%.
Payran-7 301Payran Replacethe220MBHlennoxgasfurnacew/a Thismeasureinvolvesreplacinganexistinggasfurnacewithanewcondensingfurnace.Theo~iginal - - 716 $ - S 599 $ 599 . 4.4 4.4 $ 11,538 $ 716 S 10,822 18,1
high efficiency condensingfurnace fumace may be no more than 75%efficient, while the new mndensing furnaces may be as much as
15 21 1 19 95%efficient. As the operating hours of the individual unit increases, the savings associated with
8 . ~ this'measure also increase antl the payback becomes shortec This measure has additional savings
benefts, as the equipment is at the end of its useful life. i ,
CG16 Gommunity Replacepumpmotorw/Hi-Emotor ThissysteimalreadyhasaVFDandisnoferonomicallyviable. Motorsuse50tq100timestheir 348 0.1 - $ 49 0.1 $ 975 $ 31 S 944 193
Center purchasepriceimenergycosts'overtfiei~lifetime. Motorretrofits'-areparticuladycostieffeaiveon
44 7 20 motors that operate more,than 12 hou~speFday. When motors fail, theys6ould;always,6e
replaced'witfi energy efficienTmotorrregardleu of the houriof operation.
CC 15 Community Install a new Heaf Pump Replace the old 5 ton wali fieat pump, which are close to end-of-life, withnew high efficiency heat 3,721 23 - $ 524 0.9 6:5 $ 13,000' $ 476 $ 12,524 23.9
Center pumps with specification equal to o[greater thana Carrier 25HNA9. In moderate dimate~, heat
pumps offer an energy-effuient alternative to fumaces and air ronditioners. Like the refrip,erator,
25 20 21 heat pumps use electricity to move heat from a tool spare into a warm space, making the cool
space coolec Duringthe heatingseason, heat pumps move heat from the cool outdoors intothe
warm insidespace; during the cooling season, heat pumps move Beat from a wol indoorspace into
the warm outdoors>Becau;e a heat pump moves heat rather than generate heat, heat pumps tan
PD-19 PoliceDept Replace3tonHVACUnitsw/spec'ssimilarto The{ityhastwoageing3tonpackaged'HVACsystemsservingthePoliceStationroof. Ba~kaged 1,147 3.4 563 $ 836 3.7 10.9 S 21,8A0 $ 1,078 5 20,762 24.8
6arrier48PG HVACs are most effcienf wfienthey are new, and they have a life expectancy of about 15 to 20
yearsi Ezthyearmoreefficientunitsare,heingmanufactured..Packagedairconditionersand.heat
13 16 23 22 pumps canhave Energy Efficienry Ratingz(EER~ as;high as 15, compared to an EER as9oaas$for
' some of the Cities older units. Dueto current "Ttle 24°autside air minimums; thesiie of the!roof
top:packaged systems may need to 6e increased. '
PD-21 Police Dept Replacel0ton HVAC Unit w/"spec's similarto Tfie City lias one ageing 104on packaged HVACsystemservingthe Police 5tation roof. Packaged 1,911 SJ 935 $ 1,391 ` 6.2 181 $ 36,400 $ 1,795 $ 34,605 24.9
Carrier 48PG HVAC's are most e~aent when theY are new, and they have adife expectanry of a6out15to 20
years. Each year more-efficienfunitsare heing manufactured. Packaged air conditioners,and,heat
5 5 27 23 pumps carthave Energy~Efficiency Ratings jEER) as high as 15, mmpared to an EER as low asB for
some of the Cities older units: Due to current "Trtle 24" outside airminimums, the siie of the.roof ~
top packaged systems may need to be increased.
PD-20 PoliceDept Replace4tonHVACUnitsw/Spedssimilarto TheCityhastwoageing4tonpackagedHVACsystemsservingthePoliceStationroof. Packaged 1,529 4.6 745 $ 1,110 ~ 4.9 14:6 $ 29,120' $ 1,433 $ 27,687 24.9
Carrier 48PG HVACs are most efficient when they are new, and they have a life expectanry of about 15 to 20 r
years. Each year more effcient units are heing manufadured. Packaged airconditioners and heat i'
12a 9 26' 24 pumps can have Energy Effciency Ratings ~EER) ashigh as 15, mmparedio an,EER as low as 8 for f
some of the Cities older units. ~ue to current "Title 24" outside air minimums, thesize of 4he,roof
top packaged systemsmay need to be increased. I
Mus-19 Museum SepatateDHWfromHHWsysfem,installpoint- Thismeasureproposesseparatingthe6uildingheatinganddomesticfiotwate~system.Currently;a (872) (01) 537 $ (156) $ 430 $ 273~ -' 3.1 2.8 $ 8,856 $ 385 $ 8,472 31.0
of-use electric water heaters in restroom singlelarge hot water boiler supplies 6oth systems. Domestic hot<wateris needed throughouf the
34 15 25 year, while comfort fieating is needed only in the winter months. Hence; the 6oiler has to remain on
standby all year round. The standby losses due ta radiation and deteriorated insulation can;be as I
much as 5% or more for old hoilers. These losses can 6e avoided'if themain tioiler is turned OFE in
Energy Project = ~„"`~ t
M&0 Saved Cost SPB ~E[M ~~~ f ~'
Rating Rating Rating Ratmg ,~Number~ Locadon :~,~
Corp-A Corp Ya~d Replace Bldg. G Kenne17:5-ton,100%OA, This measure involves replacingthe ezisting RTU with a new higfi efficienry unit. Typically, older 2;3i4 5.1 283 $ 460 $ 235 S 695. ' ' 23 101 S 26,163 $ 1,136 S 25,026 36.0
packaged, gas-electricRTU units have an Energy Effciency Ratio (EER) of 7 and 8. Newer units are available with an EER of as
high as 15. EER is the ratio of the heat removed from the space in btu to the total poweciiiput ~
measured in watts. This means the higherthe EER, the more coolingtan be obtained per watt of
• .', input energy: The new RTU may 6e equipped with an effcient furnace. The original furnace may.be
18 24 26 no more than 75%efficient, while the new furnaces may be as much ai 81%effcient. Asthe
operating hours of the individual units inueases; the savings associated with this measure also
' increase and the payback becomes shorter. This measure hasadditional savingsbenefrts as the
equipment isat the end, of its useful life. A high-efficiency filter is recommended for this unit to
keep the coil clean. 1
. SG12 Senior Replace HVAC system,AG2 with (1J 100 MBH This measure in~olves replacing an existingfurnace equipped with a direct ezpansion wil'served,6y 1,581 2.4 37 $ 384 $ 31 $ 415 I 0.6 6.8 $ 17,550 $ 518 $ 17,D32 41.0
Center gas furnace and associated 5-ton remote air an outdoor mndensing unit. Typically, older condensing units have an Energy Effciency Ratio (EER~ '
rooled condensing unit with a high efficieacy of 7 and 6. Newer units are avaifable wRh an EER oi as high as 15 EER is tlie ratio of the Heat
condensing furnace with DX wil and a new removed from tfie space in btu to the total power input ineasured in watts. This means tiie higher i
high EER remote air cooled condensing unit the EER, the more moling can be obtained per watt of input energy. The original furnace!may be i
17 30 22 27 no more than 75%efficient, while the new condensing furnace may be as much as 95Y efficient. As
the operating haurs of the individual unit increases, the savings associated with this measure also I
increase and the payback becomes shorter. This measure has additional savings benefts as the
equipment is at the end of its useful life. -
F1-13 Fire Station Replace (2~Packaged 5-ton Gas-Electric RTU's This measure involves replacing (2~ packaged Gas-EleRric rooftop units. Typically, olderu,nits haye 3,893 4.4 168 $ 836 $ 140 $ 976 1.9 ]6:1 $ 41;844 S 1,194 $ 40,650 41.6
1 an Energy Efficienry Ratio (EER) ofJand 8. Newer unitsare available with an EER of as highas 15.
" EER is the ratio of the;heat removed from tBe space in btu tothe total power input measuredlin ~
watts. This means the:Bigher the EER, the more coolingtan be otitained per watt af input ene~gy. ~
The new RTU may be equipped with an efficienEfurnace and an airside economizecThe original ~
11 . 12 28 28 furnace may he no more tlian 75%efficient, wBile the'new fumaces may be asmuchas 8iqo '
efficient. The aieside economiierwill letthe unit use'aimucfi.free-cooling witB outdoor air as
possi6le. As the operating hourrofthe individual units increases, tfie savings associated with this
measure also increase and the pay6ack becomes shortec This measure has additional savings
benefits as the equipment is at the end of ds useful life. •
F2-15 Fire Station Aeplace.(1) 7.5-ton packaged, gas-Eledric RTU This measure involves replacing a 7.5-ton packaged rookop units equipped with gas heatiiig. 2,D68 2.6 170.02 $ 462 $ 142 $ 604 ' 1.5 10.3 $ 26;650 $ 741 $ 25,909 42.9
2 Typically, older units have an Energy Efficiency Ratio (EER) of 7 and S. Newer units areavailahie
with an EER of ashigh as 15. EER is the ratio of the heat removed from the space in 6tu tothe total
power inputmeasured in watts. This means the higherthe EER, the more cooling can be obtained
pe~ watt of input eneigy. The new RTU may 6e equipped with an effcient fumace and an airside
12h 20 25 29 ewnomizec The original fumace may be no more than 75%effcient, while the new fuma[es may
be as much as 81~ efficienf. The air-side economizer will let the unit useas mdch free-cooling with
outdoor air as possi6le. As3he operating hours of the individual unif increase, the.savings associated
,
~ i
with tfiis measure also.inciease and3lie paybackhecomes shorter.lfiis measure has additional
sayings henefitsas the equipinent isat the end of itsuseful,life. '
F1-14 Fire,Station ReplacetfieexistinggasfurnaceDXsplitHVAC Thismeasureinvoloesrepiacinganexisting,furnaceequippedwithatlirectezpan3ion;coils`erv'ed'by 1,138 1.4 100 $ 254 $ 83 $ 338 ~ 0.9 5.8 $ 14,991 $ 414 $ 14;577 43.2
1 system with a 75 M8H gas fumace having a D% an outdoor condensing unif. Typi[ally, older condensing units have an Energy E~tiency',Ratio (EER) '
'
coil and associated 3.5-ton remote aiF cooled of 7 and 8. Newer units are available wRh an EER of as high as14. EER is the ratio of the fieat ; I
condensingunitwithahighefficiency removetlfromthespaceio:btutotfietotalpowerinpufineasuredinwatts. Thismeansthehigher ~~
condensingfurnace with DX coila~d a new the EER, the more moling can 6e o6tained per i6att of lnput energy. The original furnace may,be no
32 30 30 high'EERremoteaircooledcondensingunit morethan75%effcient;whilethenewcondensingfurnacemay6easmuchas95%efficient.The
air-side economizer will letthe unit use as much free-cooling with outdoor air as possi6le. As the i
operating hoursof the individual unit increases, the savings associated with this measure also
~
increase and the payhack becomesshortec T6is measure has additional savings benefits as the ~ ' ~
equipment is atThe end af its useful life. ;
-~
CH-11 City Hall Energy Effitient Motors for the boiler and The motor si:es are too small or the operating hoursare too few to make this cost effective. 313 01 0 $ 44 '' ~ 0.1 1.0 $ 2;080 $ 28 '$ 2;052 46i6
chiller Motors use SD to 100times their purchase price in energycosts overtheirlifetime. Motor,retrofits I .
45 31 31 are particularly cost effective on motors that operate more than 12`hours per da,y._ However,,when . ~
motors fail, they should always be replaced withenergy effident motors regardless of thehours of
operation.
Payran-8 301 Payran Repiace (3~ ezisting freezers w/ EnergyStar This measure proposes replacement ofthe ezisting inefficient 6eezers with Energy5ta~ certifed 42D - - S 67 $ - $ 67 ' 0.1 03 $ 3;376 $ 63 S 3;313 49J
rertifed'freezeis freezers. The savings are based on an estimated 1;261 annual hours of;operation The energy,
and
43 32 32
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cosi savings will be proportionally greater if the hours of operotiomare greater.
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P0-18 PoliceDept Replace 2 ton HVAC Unit w/ spec's similar ro 7he Ciry has one ageing2 ton packaged HVAC system serving the Police 5tation roof. Packaged 764 23 141 $ 2?6 1:0 7.3 $ 14;560 $ 485 $ 14;075 'S0:9
Garrier48PG HVACs are most effcient when they are new, and theyfiave a life eapectanry oPaboutl5to 20 ~~
years. Eachyearmoreefficientuniu,arebeingmanufactured. Packagedairconditionersapdheat
14 33 33 33 pumps can have Energy Efficiency Ratings (EER) as high as 15,tompared to an EEP asYow as!8'#or
some of the Cities older units. Due to current'Ttle 24" outside air minimums, thesize oftlie roof
'
top packaged systems may need to be increased.
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~ Corp-1 CorpYard Replaceeldg.A,D,H;F;l~7~windowunitsw/ 7hismeasureconsistsofreplacing(7~existingineKicientwindow-mountedairwndltione~sranging 671 1.6 0 $ 133 $ - $ 133 ` 0.2 1.5 $ 7;865 $ 264 $ 7,601 57:2
highSEER units irrsize from 1/3 ton to one ton with new unHS. Typically, oldei units have an Energy E~ciency-Ratio, ~
EER of 7 and 8. Newer units have an EER of approximately 12 or Bigfiec EER is the ratio of the heat
removed from [he space in btu to the total power input measured in watts. This means the Bighei
42 34 34 the EER, the more cooling can he obtained per watt of input energy. As the operating hoursof the
individual units increases,the savingsassociatedwithihis measure also increase and 4he-payback
becomes shortec This measure has additional savings benefits as the equipmenfisattheiend of;its
useful life.
Corp-2 Co~p Yard Replace Bldg. D Break Room and 81dg. G This measure involves replacing (2~ existing-gas (urnaces equipped with dired expansion coils • 2,104 4.5 109 S 414 $ 91 $ 505 1.2 11.6 S 30,054 $ 876 $ 29,ll9 57.8
KenneFHVACSystems with high e~tienry sened by outdoor condensing unitr. Typically, olderair cooled condensing units have an.Energy
condensing (urnaces having D/X cails and
Effcienry Ratio (EER) of 7 and 8. Newer uniu are available with an EER of as high as 15. EER isthe i
~
companion high.e~cienry remote air cooled retio of the heatremoved from the space in btu tothe total power input measured in watts. This . ~
condensingunits
meansthehighertheEER,themorecoolingcart6eohtainedperwattofinputenergy. Theoriginal I
27 35 35 furnaces may be no more than 75%effcient, while the new condensing fumaces may be as much as ,
95%effcient. As the operating hours of the indi~idual units increases, the savings associated with
this measure also increase and the payback becomes shortec Thls measure has additional savings
beneftts as the equipment is at the end of its use(ul life. :
F3-17 Fire Station Replace ~l) 2-ton and (l~ 3-ton Packaged, Gas- This measure involves replacing,(2) packaged rooftop units equipped with gas heating. Typicaliy, 1,717 3.1 110.17 $ 339 $ 92 $ 432 , 1.1 12.7 $ 33;069 $ 675 $ 32,394 75A
3 EledricRTU's olderunitshaveanEnergyEfficienryRatio(EER~of7and8. Newerunitsareavailablewithan!EER ~
ofas higfi as 15. EER is tBe rafio of the heatremoved from thespace in btu to the total poweuinpirt.
measuied in watts. This means the fiigherthe EER, the more cooling can 6e obtained. per;watt of
~ input energy. The new RTUs may 6e equippetl with e~cient furnaces and airside economizers Tlie. ' '
18 29 36 36 original furnaces may be no more:than 75%efficient, while tfie new furnaces may be as much:as
81Y efficient. The air-side economizerswill letthe unit use a; much free-coohng witfi 6ut~oorair as
possitile. Asthe operating hours ofth'e individual units increases, the,savings associatetl witli tfiis
measure also in~rease antl!tfie payback tiecomes sfiorter. This measure has additionalsayings
benefits asthe eqwpmeM is'at the end of its useful life. ~
Corp=3 Corp Yerd Replace Bldg. GOffice 5-ton packaged, gas- This ineasure involves replacing the existingRTU with a new high efficiency unit. Typically; older 1,422 2J -13 S 178 $ (il) $ 267 I 03 81 $ 2i;206 $ 47D $ 20,73fi 77.6
eledricflTU units fiave an,Energy Effcienry Ratio (EER) of 7 and 8. Newer units are available with an EER of as
high as15. EER is the ratio of the heat removed from the3pace in btu to the total power input
measured in watts. This means the higherthe EER, the more moling can 6e obtained'per,`watt ot
input energy. The nevi ATU maybe equipped with an efficient furnare and an airside ecanomizer:
35 37 37 The original fumace may 6e no more than 75%e~cient, while the new furnaces maybe a's!much as
81%effcient. The air-side economizer-will le4the unituse as much free-cooling with outdooraiias
possible. As tfie operating hours of the individual units increases,ihe savings associated witfirthis
measure also increase andthe.payback 6ecomes shortec This measure has additionalsavings )
tienefts, as the equipment is at the end of itsuseful life.
CH-6 City Hall Replace 4 ton HVAC Units w/ spec's similar to Tfie City has four ageing 4 too packaged HVAC systemson4he East Wing City HaII roof: P.ackaged 1,353 7.0 322 . $ 576 •I 23 29.1 S 58;240 $ 1,220 S 57,020 98.9
Carrier 48PG ~ HVAC'sare most efficient when they are new,;and tfiey have a life e«pectancyof about 15ko2D
' years. Eachyearmoreefficientundsare6eingmanufattured. Packaged,airtonditioneaend'heat
6 22 38 38 puinpstan have Energyffficienry Natings ~EER) as high as 15, compared to an.EER as low as'Sfio~
someoftfieCitiesolderunits. Duetocurrent'Title24"autsideairminimums,thesizeoftheroof
tap packagedsystems may neetl to 6e increased. '
Trens-18 Transit Replace (i) 3-ton &(1) 4-ton Packaged, Gas- This measure involves.replacing (2j packaged rooftop units equipped with gas heating. Typically, 1,358 3 106 265 89 S 354 ' 1.0 13.8 $ 35,856 $ 582: S 35;274 ' 99.8
Center EleclricRTU's older onits'have an Energy Efficiency Ratio (EER) of 7 and 8. Newer unitr are available wrth an EER ~
of as higfi a515. EER ls the ratio of the heat removed fiom thespace in htu to the total power input
. measured'in watts. This means the higherthe EERy the more moling can be o6tained per watt of' i
inputenergy. ThenewRTUsmayheequippedwithe~cientfurnacesandairsideeconomizers:~The
8 31 39 39 original furnaces maV be no more than 75%efficient; while thenew fumaces may be as much,as
81%efficient. The air-side economizers will let the units use as much free-cooling with outdoorair ~ _
as possible. As the operating hours ofthe indlvidual units increases, thesavings associated `wRR:this I
measure also increase and the payhack becomes shortec This measure hasatlditional saJings
benefts as the equipment is at the end obits usefullife.
.
Cava-11 Caaanaugh Replace ~1) 80 MBH &(1)125 MBH gas furnace This measure involves replacing (2) existing gas furnaces with new condensing furnates: The,o~iginal - ~ - 168 $ - $ 142 $ 142' ° lA 5.7 $ 14;869 $ 168 $ 14;I01 103.8
Center w/ high efficiency condensing furnaces fumaces may be no more than 75% efficient, while the new condensing furnaces may be as much as
) 95%efficient. As the operating liou~s of the indi~idual units intreases,;the savings associated',with ,
40 4D 40 this measure also increase andthe.payback be~omes shortec Thismeasure has atlditional savings '
benefrts as the equipment is at the end of its useful life.
i~ _
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Corp•5 Corp Yard lostali DDC EMCS to control antlschedule ~2) This measure proposes instaliation of an Energy Maoagement and CoMrol System tfiaf uses direa 2,595 - 155 $ 441 $ 124 $ 565' ~~ 1.6 24.0 $ 62,319 S 544 5 61,775 109:4
Bard unifzones, (6) electric baseboards, (3) digital controls to schedule and optimize the opeFation of several units. This wdl gide faciliry,stafi,
23 41 41 gas/eleHnc units, ~l) gas unit heater, ~2) tietter control and monitoring of their HVAC systems: The savings are intangible, but we;assumed
gas/D%split systems, (2) gas caqinet heaters 2% of the whole fatility eledricity and naturol gas usage every year. ~
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CH=8 Ciry Hall Replace 40 ton space moling liquid chiller The chiller serving the East Wing of tfie City Hall is neaPing end-of-life. Replace the eKisting chill_er 5,992 30.8 0 $ 843 1.4 52.0 $ 1D4,000 S 3,979 $ 100,021 118.6
with a new high efficienry chillec Chillers 6ave a useful life of atiout twenty years. As the chiller
ages, the e~cienry wiil depreciate. Installation of a Bigh e~ciency chiller will resuR in,more
1 15 42 42 efficienfoperetions, a more comfortable enuironment, and,reduced maintenance'co3ts. Watei'
cooler liquid cliillerrare more efficient than an air cooler chiller. Also, since the hoiler iselose; tfie,
CBy can take advantage of heat recoveryfrom ttie chillerfor extra savings. '
CC-12 Community ReplaceSTonHVACUnitswJspecifcations TheCityhaselevenageing5tonpackagedHVACsystemservingtheCommunityCenterroof: 5;524 31.0 562 $ 1,451 4J 1001 $ 200,200 $ 4,488 S 195,712 134.9
Center similar to Carrier 48PG Packaged HVACs are mort efficient when they are new, and they have a life ezpedanry of'about~l5
to20years. Eachyearmoreefficientunitsare6eingmanufattured. Packagedairtonditioners'and
4 4 43 43 heat pumps can have Energy Efficienry Ratings (EER) as hlgh as 15, compared to an EER as Iaw asB
for some of the Cities older units. Due toturrent "Title 24" outside airminimums, the size'of~tfie
roof top packaged systems may need to be increased.
CG14 Community Replace 20 Ton HVACUnits w/ specifcations The City hastwo ageing 20 ton packaged HVAC system serving the Community Center roof. 3,688 20J 389 $ 985 ~ 3.2 72.8 S 145,600 5 3,010 $ 142,590 144J
Center similarto Carrier 48PG Packaged HVAC's are most e~cient when they zre new, and they have a life expenanry of about 15 ,
to20years. EacByearmoreeffcientunitsarebeingmanufactureB. Packagedairwnditionersand
2 11 44 44 heat pumps camhave Energy Efficiency Ratings (EER) as high as 15, [ompared to an EER as low as8 ~
for some of the Cities older units. Due to current "Title 24" outside air minimums, the size~ofthe ~
roof top packaged systems may need to be increased. i
CG13 Community Replaee 12.5 Ton HVAC Units w] specifications The City has two ageing 12 ton packaged HVAC system seriingthe Community Center roof. 2,192 12.3 249 S 607 2.0 455 $ 91,600 $ 1,807 $ 89,193 146.9
Center similarto Carrier 48PG Packaged HVAC's are most efficient when tfiey are new, and they havea life expectanry of ab6ut15
to20years. Eachyearmoreeffcientunitsarebeingmanufactured. Packagedairmnditioqers,antl> ~
3 19 45 45 heafpumps can have Ene~gy Effi~ienty Ratings (EER) as high as 15, compared to an EEA as low'as 8
for some of the Cities older units. Due ro Nrrent "Title 24" outsitle air minimums,Ihe size of the
roof top packaged systems mzyneed to be increased.
CH-7 Ciry HaII Replace 12 ton HVAC Unit w/ spec's similar to The City has one ageing 12 ton packaged HVAC system:;servingthe East Wing Ciry Hall: Pack'aged 691 3.6 66 $ 176 Ob 21.8 $ 43;680 S 525 $ 43,155 244.6
Barrier48PG HVAC's are most effcienUwfien theyare new, and#hey.fiave a life expettanry of about 15 to,20
yea~s: Each yeaPmore effdient units are heing,manufadured. Packaged air conditioners and heat
9 39 46 46 pumpscan fiave Energy Efficiency Ratings ~EERJ as hlgh as 15, wmpared to an fER as low as 8 for
some of the Cities older units. Due to arrent "THe 24" outsitle air minimums, tfie si:e of the roof '
top packaged systems may need to be inueased.
F2-16 Fire Station Replace (l) unithea[er with a new one of This measure conside~s replacingthe existing inefficient uni4heaterwith a liigher efficienty unit. - - 1.02 $ - $ 1 $ 1 0.0 1.8 $ 4,737 $ 4,737 5496.7
47 47 47 2 maximumavaila6leefficienryexceedingCA Theoriginalheatermaybenomorethan75%e~cient,whilethenewheatermaybeasmuchas
code minimuin 81% efficient. +
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Payr@n-9 301Payran Cleanthecoilsofcondensingunitsserving~2~ 7hismeasure.assumesthatdeaningihietoilsoftheair-cooledcondensingunitsservingthewalk-in 7,619 3.8 - $ 1,208 $ - $ 1;208 1.8 0.4 $ 527 $ 1,524 $ (997) -0.8
walk-in molers roolers wilf signif cantly improve theirability to reject heat to the outdoors. This will result;in an
7 6 1 improvemeM in the EER of the condensing unit.lmplementingthis measure may allowthe,
additionaFonce-througB=type water-cooled condenser sec[ion to be valved OfF, resuliing in wzter
conservation.
CH-4 City Hall Pipe lnsulation Un-insulatetl hot water pipes,mnduct antlradiate heat into the atmosphere, resulting in'increased 969 - 0 $ i36 0.2 $ 141' $ 38 $ 1D3 0.8
energy costs. Thermal insulationwill eliminate mostof the heat loss, saving enetgy. Some
41 2 2 additional advantages of pipe insulation include: protedion from freezing, stahility of process
temperamre, noise reduction, and reducing the load. Insulate approximately 20 feeTOf 1%2'"coppeP
pipe in tfie mainpublic restioom ofthe East Wog ofthe City Hall.
PD-17 PoliceDept Pipelnsulation-HOtWaterHeater Un-insulatedhotwaterpipesconductandradiate'heatintotheatmosphere,resuRingGinincreased 0 - 16 $ 19 0.1 $ 25 $ 8 $ 17 0.9
energy tosts. Thermal insulation will eliminate most of the heat loss,'saving energy. Some'
46 1 3 additional advantages of pipe insulation indude: protedion from freezing, rtabiliry of process
temperature; noise reduction, and reducingthe load. Insulate approximately4 feet of 3/4? roppe~
pipe in the "Sally Port."
Air-2 Airport VendingMiser Cold beverage vending machines mnsume amaverage of 400 watts, coning as much as`$SOO;to 1,402 - 0 $ 239 03 lA $ 332 $ 90 $ 242 1:0
operate per yeac Vending Misers use passive infrared sensors to p6wer down vendingmacfiines
36 5 4 when the zurrounding area is unoccupied. VendingMiser will automatically re-power4fie vending
machine at one to three hourintervals to ensure that the product stays mld.
CH-10 City Hall Vending Miser Cold heverage vending machines consume an average of 400watts, costing asmuch as $SOD to 1,402 - 0 .. $ 197 0.3 $ 332 $.: 90 '$ 242 11
operate per yeac Vending Misers use passive infrared sensors to power down vending maehines
3T 3 5 whenthesurroundingareaisunoccupied. VendingMiserwillautomaticallyre-powerthevending
machme at one to three hour intervals to ensure that the produc[stays cold. '
PD-12 Police Dept Vending'Miser Cold 6everage vending machines consume an average of400 watts, costing as much as$500 to 1,402 - - $ 197 0.3 $ 332 $ 90 $ 242 ' 1.2
operate peryear. Vending Misers use passive infrared sensorsto power downvending machines
38 q. 6 when tlie surrounding;area ls tinoccupied. VendingMiserwill automatitally re-powerthe vending
machineatonetothreehourintervalstoensurethaYtheproduc[3taysmld. However,the'bcation ,
' , of this machine may very welf he in:a high traffic area -this may reduce the stated savirigs.
Payran-42 301 Payran Cighting Retbfit This measure proposes to install T8lamps In plate of the existingTi2lamps. 4;206 1.3 $ 559 1.0 $ 1,810 '$ 841 5 969 1.7
24 8 7
SC-43 Senior Lighting Retrofit This measure proposes to install T8lamps;in plare of the existing T121amps. ' 7,059 2.3 - 5 939 1.7 $ 4,467 _S' 1,412 $ 3,055 3.3
13 10 8 Center
CY-44. Corp YaFd Lighting Retrofit This measure,proposes to install T8lamps in plare of the existingT121amps. i.' 8;613 2.9 $ 1,146 2.0 $ 5,941 $ 1,7Z3' $ 4,218 3.7
8 11 9
MIC-6 Mary Isaak Install.p~emium efficienry motors on supply Thiz measure eonsiders replacingthe supply fan motors forthe (3) AHUs wdh premium efficienry 7,693 0:9' (235) 5 1,303 $ ~195) '$ 1,508 , 0.4 1.A $ 4,753 5 1;005 $ 3,747 3.4
Center fans of AHU-1, AHU-2 and AHU3 motors..Tfie effi~ienry of the existing motoa may be as low as$5%, while premium efficiency
- : -
. motoa of tlie:same siZe can be over 92%efftient. The fans will have to 6e resheaved to capfure all .
the sawngs 6ecause the fans wdl deliver:more airif tlie premiurriefficienty motor i3 installed;on the
IO 13 10 same sheaves. The gas usage wilbincrease slightly, because the old inefficient motor addslheatta
tlie aic This measure isappropriate here because the AHUs operate 24 hours a day, se~en'days a
weekThiswilPresult in a sfiorter payback on the in~estment. Premium effcienry motors also have
ancillary benefits like long life, less heat produced, less noiseand better quality hearings.
Aic-45 Airport LigtitingRetroft Thismeasureproposestoinsta11T81ampsinplaceoftheexistingT121amps. 13;748 61 - $ 1,828 3.3 . $ 11,969 $ 2,750 S 9;219 5.0
3 16 11 •
CY-46 Corp Ya~d Lighting Retroft This measure proposes to install T8lamps in place ofthe existingT121amps. 3,883 1.1 - 5 516 09 $ 3,788 S 777 '$ 3,011 5.8
26 9 12
Cava-07 Cavanaugh Gghting Retroft This measure proposesIo install T8lamps in place ofthe existingTi2lamps. , 6,221 4.4 - $ 827 1.S $ 6,455 $ 1,244 $ 5,21-1 6.3
17 14 13 Center f
CH-3 City Hall Air Handler UFDs Bothair handlea.serve Ihe East Wing: The units are constant volume with wa[er to air heat 14,151 OJ 0 $ 1;991 3.4 7.8 $ 15;652 $ 1,274 $ 14,378 7.2
exchangers. The retroft consists of installing a variable frequenty drive on the supply apd~retum fan
marked 2 21 14 motors, variable volume terminals and performing mntrols modifications to allowthe speed of the
fan to vary to satisfy the space temperature setpoints.
[H-9 City Hall fteplace electricfurnace wJ condensing unit a Replace 6oth electric fumaces w(' 2 ton condensing units, one dose to end-of-life, wi4fi'new 61gh 8,752 1.8 0 5 I;231 2:1 5.2 $. 10,400 $ 355 S 10,045 8.2
new Heat Pump ~spec's similar ro Carrier efficiency heatpumps with specification equal to orgreaterthan a Cairier 25HNA9. ~ ~ -
10 6 .'17 15 25HNA9)' , ~ ' ~
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-Number _ Location EEMTitle~ •' 'KM Desaip6on - , Saved ,, ,kW saved , . jtherms/yr), t .. ;`. Saved GasCost Sa'ved [ost5aved Gas Reduc[ion` of la6or Estimate ...: Rebates Ertimate. ,:(yeaa)
Pa ran-10
V 301 Pa ran
V Re Iace T12 G fitin w( T8"li htin
p g d B B This measure ro oses to install T81am s in ~lace of the existin T12lam z. ln fact, iven the a e of
P P P P g P B B 2~764 0.8 - $ 438 $ - $ 438 0.7 3.1 $6,078' $ 490 $ 5,588 12.8
. the lighting fxtures, the faeility may decideio replace the entire firtures. Third-generation or
'premium' T8lamps and rapid elecVOnic start tiallasts are recommended. A T12 to 78 conversion
can offersubstantial reduction in energy usage. The latest T8 lighting is also smtopically enhanced,
i.e. it has more tilue light than before, 6ringing the effect doser to dayligfit. This improves visual
comfort.
Air-1 Airport Install a new Heat Pumps wJ efficiency Replace old "2 ton wall heat pumps, which'are close to end:of-life, wRh newhigh effi~ienry heat 5,052 2.3 0 $ 861 11 6.5 $ 13,00Q $ 569 $ 12,431 14.4
specifications similar to a Carrier 25HNA9 pumps with specfication'equal to or gFeate~ than @,Carrier Z5HNA9. In moderate dimates, heat '
pumps offer an energy=efficient alternative:to furnaces and.air conditioners: Like the refrigerator,
heat,pumps use electricity to move heat#rom a cooPspace into a.warmspare, making;thexool
space'cooler.,Dunngthe fieatingsea'son; 6eat pumps move ISeatfromdhie cool,outdoors ioto tBe ~
warm insiAe space during,ffie cooling season, heat pump3 move heaffrom a cool indoorspace into
the warm outdoors Becauseia heat pump:moves heaH~atherthan generateheat; heatpumps,can
,. , •
•
CH-5 CiryHali SpaceHeatingBoilerChange6ut Replace,theexistinghotwaterboiler-with.a;highe~cienrycondensingboilec 5tandardboilersare -' • 3;531 - . $ q;237 21.5 39.0 $ 78;000 $. 1;700 $ 76;300 18.0
about 80N efficient at fulllload whemnew. As a 6oiler ages, the efficiency drops. In addition, most _ ~
tioilersoperateat,partJoatl,conditionsmosfof,tfie-time. The,condensingtioilerismore~effiaentat
aII loads; but particuladyafpart Ioad contlltions, reacliing efficiencies as liigh as 98%. .
_
.
.
._
. .
Pa an-7
yr q
301 Pa ran place the 320 MBH'Lennoxgas furnace w/ a 7his measure'involves replacing an existing gas fumace with a new condensing fumace. The origi~al^
._ . ,-. - 716 $. - $ 599 $ 599 4i4
. 4A 'S 11,538' $ 716 $ 10;822 18.1
n g„ effiaenty condensingfu~nace
~ furnace may,beno mo~e than75%efficient; wfiile the new mndensing furnaces may,be as much'as
- ..
~ • .
95%effinent.:As the operating hou'rs oftfie'individual onit intteases; tfiesavings assotiated with
~ ' this measure also increase~and the paybatk-.betomes'~shorter. This measuie has additionafsavings
' benef~ts, as the equipmentisat the end of,iu useful life. ' ~
CC-16 Communify Replace pump motor w/Hi-E,motor Thirsystem already has:a VFDand is not e[onomicallyyia6le. Moton use:50to 100timestheir . 348 0:1 . - $ 49 0.1 $ 975 $ 31 S 944 193
Center purchaseprice'in energy [os[s overtheir lifetime. Motocretrofits;are partialarty cost effective on
mofors that operate:more 4Ban 12hours per day.'When motors fail; tfiey should always be
f ~
replated ivith energy efficientmotors regardless ofthe fioua of operation.,
CC-15 Community Install a,new Hea( Pump Replace the,old 5 ton wall heat pump, whicfi~are dose to end of-life, with new higli efficiency h'ea{ 3j721 2.3 -' -, `$ 524 0.9 6.5 $ 13,000 $ 476 $ 12;524 23.9
Center pumps with spetrfication;equal to orgreatecthan a Carrier 25HNA9. In moderate dimates~ lieai s
pumps,offer an:energy-efficient aliernative to furnacesand air conditioners. Like:the refrigerator,
lieat pumps use eledncity fo move heat=frorti a cooCspace into a warm space, making#lie cool ' ~
~ -
~ space cooler.:Duringthe heatingseason, fieat pumps moGe heat;fr6m tfie cool outdoori`inEo,tFie
~ , ~ ~ warm~mside,space; duringtfie coolin`gseason, heafpumps~move heaYfrom a cool indoor space.into ~ ~ ' • ~ , , ~
the warm outdoors. Because a heatpump moves heatrather than generate heat, heat pumps'can
_ -
-
PD-19 PoliceDept Replace3tonNVACUnitsw/ispec's;imilarto TheGty,hestwoageing3tonpackageBHVACsystemsservmgthePOhceStationroof. P
zckaged 1,1'47 3.4 563 $ 836 3:) 109 S 21,840 S 1,078 $ 20,762 24.8
Earrier 48PG ~ i
HVAC's are inost effirient when they ere new, and they.ISaye a l~fe'ezpe~tanry of about 15 to 20 ; ~ .
yeaa Eachyearmoreeffclentumtsarebeingmanufactured. Packagedai~conditionersand6eat ,
pumps can have Energy Efficiency Ratings'~EER) as,high as 15, mmpared to an EER as lowas 8 for
zome;ofthe Cities olBerunits. Due,foturrent'Ttle-24" outride airminimums, the size of the roof
top packaged systems may need to be increased.
•.
PD-21 Police Dept Replace l0ton HVAC Uni[ wJ;spec's siroilarto The C'rty has one ageing 10ton packaged HVAC system serving the PoliceStation roof. P.ackaged 1,911 5.7 935 $ 1,391 6.2 18.2 $ 36,400 $ 1,795 $ 34,605 24.9
Carrier48PG HVAC's,are most efficient when theyare.new, and they'have a life expectancy of atiouYlS to 20 -
years Eachyearmore'efficientuniu.are6eingmariuhetuied Packagedai~conditionersandfieat , „
~ pumps caq-have E~ergy Efficiency Ratings (E,ER) as high,as 15, compa~ed;to an EERfas low as8 fo[
• ' someof,the.CitiesolderunRS::Dueto~arcent'Title24"outsideau.minimums,thesize.of,the'roof. ~ . ~ ~ ~ ~
rop packagetl'systems may need to'be increased:'; ~ '
PD-20 PoliceDepC Replace4tonHVACUnitswJ~lspec'ssimilarto TheCityhastwoagemg4,ton~packagedHVACsystemsservingthe~PoliceStationfroof. Packagetl~ 1,529 4:6 745 $' 1,110 4:9 14'6 $, 29,120- S, 1j433 $ 27;687 24:9
Carrier 48PG HVACs are.most effcientwhen they are new, and they have a life ezpectanry of about i5 to 20 ° ,
~. years. Each year more efficient unifs are tieing manufactured .Packaged air mnditionea and''heat "
pumps can lia've;Eoergy EfficiencyRatings (EER) as higfi;as 15; compared;to an EER as low as 8 for ,.
some of tfie Cities older units:Due to cu~rent "THe 24"'outside ain mioimums, the size of the roof
' top packaged;systems may need to be increased:
Mus-19 Museum SeparoteDHWSfromHHWsy'stem,installpoint- Tliismeasurep~opose'sseparatingthe6uildingfieatinganddomestichotwatersyrtem.Currently,'a (872) ~~0:2~ , 537 5' (156) :S: 430 $ 273 ', 3'1 `,2.6 $ 8,856 ,$ 385 5 8;472 31.0
of-use eledric water heatersm restroom
i. smgle large hot water boilersupplies both systems. Domest¢ hot water is needed throughout the
year, whiletomfort heating is needed only in the winter months: Hence, the boilei has to remain on
~ standby ail year.:round. Tfie s[and6y losses due4o radiafion and deteriorated insulation can be as . '
~ much as 5%or more for old boilers. These losses can be avoided if 4hemain boiler is tumed OFF io
Energy Project
M&0 Saved Cost SPB
Rating Rating Rating Rating
` "°~ ~ "~"""
' ~
~ ~ ~ ~ turofG Mnual ~ ~~ ~ ~ ~ ~~ Sim le
P
M&0
Saved Cost SPB ° ECM ~: , ;
' `
', . . , :
"
`
::
~
'Ele
o~
rgy
n ,
Greenhouse
Person-0ays
Pro~ectCost,
VoteMial
NetProjed
Payback
Rating Rating Rating' Rating Npmber. ''LocaUOn ,
ECMTttIe n,..,;,, ,, R ,.:
.~ KMDescripUOn,: _, :: „,; Saved :k4VSaued
_ `~therms
/yr~ Saved GasCostSaved aCo3tSa
ved°
. GasReduction'
. _ ofLa6or Fstimate --
_:... Retiates
, 'Estimate (years)
~ Corp-4 Corp Yard Replace Bldg. G Kenne17.5 -ton,100%OA, TBis measure involves replacingthe ezisting RTU wit6;a new fiigh efficiency umt T'ypically, older . 2,314 , 5.1 283 $ 460 $ 235 $ ~;695' 2,3 10.1 $ 26,163 $ 1;136 $ 25,026 36.0
packaged, gas-eledric RTU unfts have an Energy Efficiency Ratio (EER~ of l and 8. Newer unRs are available with
an EER of as
,
high as 15. EER is the ratio of the heat removed from the space in btu to the totai powei input
measured in watts. This means the higher the EER, the more cooling can be ohtained'per'wztt of
i~put energy. The new RTU may be equipped with an efficient furnace. The origioal furnace maybe ' ~
18 24 26 no more than 75%eff¢ient, while the new tumaces may 6e as much as 81% efficient:-As the ~
operating houa ofthe individual units increazes, thesavings associated witti this measure also '
increase and the payback becomes shorter. This measure hes additionai savings benefts as tfie.
equipment is atthe end of its useful life. A high-efficienryfiRer is recommended fortfiis;unit to
i
keep the coil dean. ~
I
SG12 Senior Replace HVAC system AC-Z with (1~ 100 MBH This measure involves replacing an exisiing furnace equipped with a direct ezpansion toil secved by 1,581 2.4 37 $ 384 S 31 $ 415 0.6 6:8 5 17,550 $ 518 $ 17,032 41.0
Center gas fumaceand associated5-ton remote air an outdoor tondensing unit Typically, older condensing units have an Energy Effitienry Ratio ~EER~
cooled condensing unit with a high efficienry of 7 and 8. Newer units are available with an EER of as high as 15 EER is tBe ratio of the 6eat
condensing furnace wdh DX mil and a new removed fromthe spate in btu to the total power input measmed in watts. This means tBe!higfier
17
30
22
27 high EER remote air cooled condensi~g unit the EER, the more ~ooling can he obtained per watt of input energy. The original fuma~e'may 6e
nomorethan75%efficient,whilethe.newcondensingfumacemaybeasmuchas95%e~cient As
the operating hours of the individual,uniYincreases, the savings associated with thismeasure also
increase and the payhack becomes shortec This measure has additional savings benefits as the
equipment is at the end of its use(ul life. ~
F1-13 fire Station Replace (2)Packaged 5-ton Gas-Electric RTU's This measure involves replacing (2) packaged Gas-Electric rooftop units. Typi[ally, olderunifs have 3,893 4.4 168 $ 836 $ 140 $ 976 1.9 16.1 $ 41,844 $ 1,194 $ 40,650 41.6
1 amEnergy Efficienty Ratio {EER) of 7 and 8. Newe~ units are availabie with an EER of as fiigh as 15.
EER is the ratio of the heatremoved from ihe space in btuSOthe total powerinput measured in
watts. ThismeansthehighertheEER,themorecoolingcanheo6tainedperwattofinputenergy.
The newRTU may be equipped withan efficient tumace and an airside economiter. The original .
11 12 28 28 furnace may be no more than 75%e~cient, while the new fumaces may be,as much;as 81%
efficient The.air~side economizer will lettBe unit use as much fiee-cooling with outdoorairas
possible. As tfie:operating hours'ofthe indiyidual units increases; the savings associated wRh this
measure aiso increaseand the payback beromes shorter. Thismeasure has additiontl savings
benefrts as the eqaipment is at the end of its useful life.
F2-15 Fire Station Replace (1) 7.5-ton packaged, gas-Elet[ric RTU This measure invol4es replacing a7.5-ton packaged rookop onits equipped with gas heating. 2,068 2.6 170.02 $ 462 $ 142 $ 604 1.5 103 $ 26,650 $ 741 $ 25,909 42.9
~ Z Typically,olderunitshavea~fnergyEffciencyRatio~EER)of7and8. Newerunitsareavailable
with an EER of as high as 15. EER is the ratio of the heat removed from the space in btu to the4otal
power input measured in watts. This means the higher the EER, the more cooling can be obtained
per watt of input energy. The new RTU may be equipped with an e~cient fumace and an airside
12b 20 25 29 economizec The original furna~e may be no more than 75%e~cient, while the new fumaces may ;
' be armucfi as 81/ efficient. The air-side emnomizer will let the unit use as much free-cooling with
outdoor aicas possible. As the operating hours ofthe individual unit inerease, the savings associated
with this measure also increase and the payback 6ecomes shorter. This-measure has additional ,
saJing56enefitsas the equipment is at the end of its useful life. . •
F1-14 Fire Station Replace the existing gas fumace DX split HVAC This measure.involves repla~ing an ezisting fumace equipped with a dlred expansion cod Served by 1;138 li4 100 $ 254 5 83 $ 338 , 0.9 5.8 $ 14,991 $ 414 $ 14,577 43.2
1 system with a 75 M8H gas fumace having a DR. an outdoor condensing unit., Typicaily, older condensing unitshave an Energy E~cienty RaUO (EER)
coil and associated 3.5-ton remote air cooled ofJ and $ Newe~ units are avzilahle with an'EER of as high as 14. EER is the ratio of the heat
condensing unit with a high effcienty removed from the space in btu to the total power inpu[meam~ed in watts. This means the fiigher
condensing fumace with DX coil and a new the EER, the more moling canbe obtained per watt of input energy. The original furnace may be no ,
32 30 30 high EER remote air cooled wndensing unit more than 75% effcient, while the new ~ondensing furnace may be as much as 95%efficient. The
air-side economizer will let the unit use asmuch free-cooling with outdoor air as possible. Az the '
operating hours of the individual unit increases,the savings associated with this measure also ~
increase and the payback becomes shortec This measure,has additional savings benefitsas the ,` .
equipment is at3he end of its useful life. ~
~i
'
CH-il City Hall Energy Efficient Motors for the boiler and The motor sizes are too small orthe operoting hoursare4oo few romake t6is cost effective: 313 D.2 - 0 $ 44 '~ 0.1 lA $ 2,080', °$' 26 $ 2,052 46.6
chiller Motors use SOto 100 timestheir purchase price in energy costr overtheir lifetime. Motor retrofits 1
45 31 31 are particularly cost effective on motors that operate more than 12 houa per day. HoiveJer; when
motors fail, they shoultl always be replaced with energy-efficienPmotors regardlezz of the fiours of ` ~~ '
operation.
Payran-8 3D1 Payran Replace (3~ existing freezers w/ E~ergy Star This measure proposes replacement of the existing ineffcient freezers with EnergyStarcertified 420 - - $ 67 $ - $ 67 !~ 0:1 03 5 3;376 $ 63 5 3,313 49:7
43 32 32 certified freezers free:ers. The savings are tiased on an estimated 1,261 annual hours of operation.,The energy and ~+
cost savings will be proportionally greater if the liours of operation are greatec ~t
n .
i
y
PD-18 Police ~ept Reptace 2 ton HVAC Unit w/ spec's similar to The Ciry has one ageing 2 ton packaged HVAC system serving the Police Station roof. Packaged 764 23 141 S~ 276 `; i.0 7.3' S 14;560 $ 485 5 14,075 50:9
.
~ ~ Carrier 48PG HVACs are most effcient when they are new, and they have a life expectancy ofabouf 15;to 20 - ~
~
~~
years. Each year more efficient units are being manufactured. Packaged air conditioners' and!.heat ,
~ j
14 ' 33 33 33 pumps can have Energy Eff~ciency Ratings (EER) as high as15, compared to an EERas low as 8 for °
. some of the Cities older units. Due to current "Title 24" outside air minimums, the siie of~the;roof
' top packaged zystems may need ro 6e increased. ~, ,~
Energy Projett
M&0 Saved Eost SPB
Rating 'Rating Rating Raung
az I 34 I 34
27 35 35
~18 ~ 29 ~ 36 ~ 36
35 ~: 37 I 37
6 ~ 22 ~ 38 ~ 38
8 31' 39 39
~ I 40 I aD I ao
23 ~ 41 I A1
ECM : ~
Nat ralGas
°
Mnu51.:
Simple
Number
. Location;
ECMTide =
'
'~" kWh/yr ;.• saved_. ElectricalCost. AnnualNamral ,AnaualEnergy Greenhouse Persoo-days . ProjectCost Potential NMProject,. Payback
,
„ ,
ECMDescn tion
. ..
• P -' Saved
u..~ : kWsaved
.. , _ therms
. J Lvfl;': Saved..'
.. . GasCod45a3ed CostSaved GasReduction
' oflabor Estimate Rebates Estimate
IYearsJ.
Corp-1 CorpYard ReplaceBldg.A,D,H,F,I~7~~windowunitsw/ Thismeasureconsistsofreplacing~7~existinginefficie~twindow-mountedaircondRionersranging 671 1.6 0 S 133 $ - $ 133 0.2 ~1.5 5 7,865 S 264 $ 7,601 57.2
high SEER units in size from 1/3 ton to one tonwith new units., Typically, older unds have an Energy Efficiency Ratio,
EER of7 and 8: Newer unitshave an EER of approximately 12 or highec EER isShe rotio of the heat
removed from the space inbtu to the totalpower input measured in watts. This means the higher
the EER, the more moling can.be obtained per watt of input energy. As the opera[ing hours of the
individual units intreases, tfie savings associated with this measure also increase and the payback ,
becomes sborter. This measure has~additional savings'benefiu as4he equipment is at the end of its
useful life.
Corp-Z Corp Yard Replace 81dg. D Break Room and 81dg. G This measure involves replacing (2) existing gas fumaces equipped with dired expaosion coils 2,104 4.5 109 $ 414 $ 91 S 505 1
2 11
6 054
$ 30 $' 876 $ 29
179 57
8
Kennel HVAC Systems with high effciency served by outdoor condensing units. Typically, older aii,cooled condensing units have an Energy , . . , , .
mndensing furnaces having D/X coils and Efficiency.Ratio (EER~ of 7 and 8. ,Newer units areavailahle with an EER of as high as 15; EER is the
companion highE~ciency remote air cooled ratio of fhe heat removed from the space:in btu to the total powerinput measured in w~atts. This
condensing units - means the higfier the EER, the more:cooling can be obtained per watt of input energy. The original ,
fumaces maybe no mo~e.tfian 75%'efficient, while,tfie neweondensing fumaces may be as much as ~
95Y effcient; As the operating hours ofthe,individual units incieases~ the savings associated with ~
this measure also mcrease:and the payback 6ecomes3horter: This measure has additional savings
benefits asthe equipment isat the end:of;its useful life. ~
F3-17 Fire Station Replace (1) 2-ton and ~1) 3-ton-0ackaged, Gas- This measure involves replacing (2) packaged rookop'units equippetl with gas heating. Typically, 1;717 31 110:17 5 339 $ 92 $ 432 1
1 7
12 '$ 33
069 5 6
5 $ 32
94
3
Electric RTU's
olderunits have an Energy.Effcienry Ratio;(EER~ of 7and 8. Newer. unRS,are availa6le viith an;EER .
. : . , 7 ,3 75.0
i ~ of as tiigh~as~15..EER-is.the~:ratia of the heat.removed from the space in bfu to the total powe~ inpuf ~ ' -
measuredin:watts. Thisineanstfie,liighertheEER,themorecoolingcanbeobtainedperwattof '
input energy. The new RTUs may 6e;eqdippetl with efficient (uina~es an0!airside eeonomizers: The
originaf fumaces may be no more than 75% efficient; while the new furnaces maybe as;much as
81%efficient. The ai~-side economi:ers will,let the unit use as much free-cooling with outdoor airas
possi6le. 0.s the operating hours of the individual units increases, thesavings associated with this
measure also,inaease and the payback becomes shortec T6is measure has atltlitional savings
, benefits as the equipment is at the endof its useful life.
~ ~
,.
Corp-3 CorpYa~d g 60ffice'$-tonpackaged,gas-
l u
1Ve
ln6
a
e
R
a
1
h
a
g
ol
l 1,QZZ z.? 13 ;5 278 $• (11) $ 267 03 8.2 $. 21a206 $ 470 $ 2Q736 77.6
eledr
cRTU ~, ry ( I
umtshave
anEner
E~
n
e
to
EE
o
f7a d8. Ne e
nrtszre
o
vala6lewitha
EER
ofas
'
Bighasl5: EER'istheratio;ofthe'heatFemovedfromtBespacein6futolthetotzlpowerinput , ,
measured in watts. This means the higher,the EER, the mo~e cooling can be obtainetl per watt of ~~
input~energy: The new RTU maybe equipped with an efficient furnace:and~an airside eronomire~: ~ ~. . ,
The original f~mace may be no moie•tlian 75%efficient`,wfiile the new furnaces may be as mucfi as ,' ,
81%efficient: The air-sitle economizer will'let the:unit ~se azmuc6 free-woling with outdoor air as + ~
possihle. As the operatmg,hours of tfie individual units increases; the savings associated~wiffi tfiis
measure,also increase and the paybaek becomesshorter. This measure;has'addidonal savings •
benefits;.as the equipment is at t6e end of its usei~l life: ,
CH-6 City Hah, Replace 4 ton HVAE Units.w/ spec's similar to The City has'four ageing 4 ton packaged NVAC systems ort;ihe Easi Wing Ciry Hall roof. Paekaged 1,353 ' 7.0 322 $ 576 2.3 29.1 $ 58,240 $ 1,220 $ 57,020 98.9
Czrrier 48PG HVACs are most efficient whendhey are new, antl they fiave a life expectanry of about 15 to 20 .
years. Each yea~ more effcient,units'arebeing maoufaetured. Packaged airconditioners and heat
~ pumpstan have Energy;E~ciency Ratings (EER) as hig6!as15, compareddo an EER aslo~was 8 for
someoftheCifiesolderunits. Duetocurrent'Title24"'outsideauminimums;thesize;oftheroof
top packaged systemsmayneed to be increased. '~ ,
Trans-l8 TransiE Replace (l) 3-ton &(l) 4'ton Packaged, Gas . TFos measure'in"volves replacing (2} packaged rooftop units eqwpped;With gas;heating. Typically,
~,.. 1,358 3 . 106 `265 ' 89 $ 354 1.0 13:8 $ 35;856 $ 582 $ 35
274 , 99:8
Eente~ Electric RTU's older unitshave an Energy Efficienty Rati6~EER) of 7-and 8: Newer units are available with an EER - ,
' of,as higfi:as'15.'EER is the ratio of the heat remoued'from the space in 6tu to the totabpower inpuf ' ° ` ,
ineasured inlwatts. Tfiis means tfie higfier Ehe EER,ihe more cooling,canbe obtained per watt of '
i np~t energj. The new RTUs'may b"e eguipped"with effcient furnares antl airside economizers. The "
original furnaces may be nqmore than,75%efficient, whilekhe,n"ew fumaces may be as much a's
81%efficient. The air-side economaers will.let the units use as much free-cooling with outdoor air '" ~
as possible. As:ihe operatinglhours of'the individual units increases, tfie savings associated with this
measure also increase an8i6e paybaek becomesshortec This measure has additional savings
benefits asthe equipment is atttie end;of its usefullife.
Cava-11 CavanaugB , fteplace (l)'80 MBH &(l~'12S MBH gas furnace This measure involves replacing{2) existing gas furnaces with new eondenzing furnaces. The original -'~ - 168 $ - $ 142 $ 142 1.0 5.7 5 14,869 $ 168 5 14,701 103.8
Center w/ high effcienry condensing fumaces fumaces may 6e no more than'75%,effcient, while the newtondensing fumaces may be as much as
95%eff~~ient. As the operatinghou(sof the intlividual units increases;the savings associated with •
t his measure afso inc~eaze and the,paytiack tiecomes shortec.This measure has additiona! savings
henefits as the equipment is at the end of iu useful life. '
Corp-S Corp Yard I nstall DDC EMCS to control and schedule (2) This measure proposes instzllaUOn ofan Energy Management and Control System4hat uses direct 2,595 - 155 $ 441 ' $ 124 $ 565 1.6 24.0 $ 62,319 $ 544 $ 61,775 109.4
Bard unit zones, (6~ electricbaseboards, (3) digital controlsto schedule and'optimize tlie operation of severabunits. Thiswill give faciliry staff
gas(elec[ric unRs, ~l) gas,unit heater, ~2~ better [ontrol and monitoring of their HVAf rystems: The savings are intangi6le, but we assumed °
gas/DK split systems, (2J gas cabinet heaters 2 %of the whole faciliry electriciry andnaturaf gas usage every year. -
and ~l~ evap cooler
. b1 "` ~ ~ , . " . NaturalGas. .. Annual - `. ' r ~ ^ Simple
: . .
M&q Saved Cost SP8 . ECM , u. kWh/yr saved ` Eledrial Cost Annual Natural Annuai Energy Greenlrouse .Person-days ,Pra~ect Cost'. Potential. NM P'roject ` Pay6ack:
Ratinz Rating Ratine Ratine ' ;Nambei' .,.Cncation . F~nnnrio:, .~r.; , . .' .. , , . ; . : .cc^nn~~;.,.~,,,, ' - -
'
CH-8
CiryHall
Replace40tonspacecoolinghquid:chille~
,_
ThechillerservingtheEastWingoftheCityHallisnearingend-of-life. Replacetheezistingchiller
5,992
30.8 • -• • ~
0 ----- --- °-•- - _„~,...
$ gq3~ __..
1.4
-.
52.0
. .
S 104,009
,:
$ 3,979
$ 100,021
118.6
with a new high efficienty chillec Chillers have a useful life of about twenty years. As the chiller
ages, the efficienry will depreciate. Installation of a high eff cienry chiller will result i~ more
1 15 42 42 efficient operations, a more comfortable environment; and reduced maintenance [ostr. Water
coolerliquidchillersaremore'efficientthananaircoolerchillec Aiso,sincetheboilerisdose,the
. City can take advantage of fieat recovery from the chiller for e~ra savings.
CG12 Community Replace 5 Ton HUACllnits wJ specifcations The City 6as,eleven ageing!S tompackaged'HVA6system serving the Community Ceoter roof. 5,524 31.0 562 S 1,451, 4.7 1001 S 200,200 $ 4,488 $ 195,712 134.9
Lenter similar to Carrier 48PG Packaged HVAC's are most e~cieM when they are new, and4hey have a life expectancy of about 15
to20years. Eachyeacmoree~cientunitsarebeingmanufacturetl. Packagedairconditioners;and
4 4 43 43 heat pumps can have Energy Efficiency RaGngs (EERJ as high as 15, compared to an EER as lowas 8
for some of the CRies older unitr. Due to current'Trtle 24° outside air minimums, thesize of the
roof top packaged systems may need to be increased.
CC-14 Commuoity Replace 20 Ton HVAC Units w/ specifications The Cty has two agei~g 20 ton packaged HVAC system serving the Community Center roof. 3,688 20.7 389 $ 985 ~ 3.2 72.8 $ 145,600 S 3,010 $ 142,590 144.7
Center similar to Carrier 48PG Packaged HVACs are most effcient when they are new, and they have a life expectancy of about 15 ~
to 20 years. Each year more effcient units are 6eing manufactured. Packaged air tonditioners and
2 11 44 44 heat pumps can have Energy Effcienry Ratings ~EER) as high as 15, compared to an EER zs low as 8
for some of the Cities older units. Due to current'Ttle 24" outside air minimums, the siie:of the`
roof top packaged syrtems may need to be increased.
CG13 Community Replace12.5TonHVACUnitsw/specifcations TheCiryhastwoageingl2tonpackagedHVACsystemservingtheCommunityCenterroof. 2,192 123 249 $ 607 2.0 45':5 $ 91,000 $ 1,807 $ 89,193 146'.9
Center similarto Carrier ABPG Packaged HVACs are most efficient when they are new, and they have a life expectanty;oEabout•15
to20years. Eachyearmoceefficientunitsarebeingmanufactured. Packagedairconditionersand
3 19 45 45 heat pumps tan have Energy Effcien~y Ratings ~EER~ as high as 15, compared to anfER as low as 8
for some of the Cities older units. Due to turrent'Ttle 24" outside air minimums, tfie siie,offhe
roof toppackaged sysfems may need to be increased.
CH-7 CiryHall Replacel2tonHVACUnRw/spe~ssimilarto TheCRyhasoneageingl2tonpackagedHVACzys[emservingtheEaztWingCiryHall. Packaged 691 3.6 66 - ° $ ll6 D.6 21.8 $ 43,680 $ 525 $ 43,155 244.6
Carrier 48PG HVACs are most efficieaf when they are new, and they have a life expe~tancy of aboutl5 to 20
years. Each year more efficient units are being manufadured. Packaged air conditioners and heat ~
9 39 46 46 ~ pumps can have,Energy Efficiency Ratings (EER) as high as 15, compared to an EEA as Iow as B.for
some of the Cities older units. Due to wrrent'Title 24" outside air minimums, the size ofthe roof
top packaged systems may need to 6e increased.
F2-16 Fire Station Replace (1J unit heatei witfi a;new one of This measure considers replacing the existing inefficient unit heater with a higher efficienry unR. - - 1.02 $ - $ 1 $ 1 0.0 1'8 $ 4;73T $ 4,737 5496.7
47 47 47 2 maximum availa6le etficienry ezceeding CA The original heatermay be no more than 75%effcient, while the new heater may be as much as
code minimum 81%efficient.