HomeMy WebLinkAboutenergy audit TB gym 2011Energy Audit
Thorne Bay Gym
Southeast Island School District
Final Report
November2011
Alaskan
Housing
Alaska Energy Engineering LLC
Table of Contents
Section 1.
Execudxe Summzn
Samoan I
Introduction
6
Section a:
Enngv Efficiency %ltasmes
3
Section l:
D .cripnon of Systems
Ls
section?:
>lethodoloey
17
Appnalm A:
Ltf Cycle Cos Analysis
30
Appendix B:
Lolly and Enron, Data
2q
AppendixC
Equipment Coca
.i
.appendix D.
.ibbatindons
37
Audit Team
The enema audit is petfotmed by Alaska Euern Engineering LLC of lunean Alaslm. The audit team
emmsts of,
• Jim Rehfeldt. P E Enern Enginttr
• look Chrimmuten, Enemv CommItant
Bad Campbell. Enetcy AuSaor
• Loas O'Toole P.E.. Mechnfdcal Engineer
Will Van Rken P E, Electrical Engineer
• Cum Smit. P E., Mechanical Engineer
• PhSip Berson Comvncuon Esimzmf
• Pula Hart Technical Publications Specialis
• Jill Cadde, Data Halm -
• Gntson Cmide, Energy Modeler
m,.R, oc.,, ne coda 'otn
Executive
in energy audit ofthc Thome Bay Gym was performed by Alaska Energy Eugmeedng l-LC. The
in% content wade audit was fimded by .Alaska Housing Finance Corporation (AHFC) To identify
oppommitin to impm.e The energy performance of Wblan buildings thmugbout Alaska
The name Bav Gym is a 19.494 square had buddme That conroina offices, classrwms, Turku
roorw amulti-purpose gyna asium lobby, storage, and maNwical support space.
Building Assessment
The following suTmnaraes our assessment ofthe building.
Em-elove
The mnenm 0fthe building appears to have Ineea well maintained and should provide moon, more
years of servire. The large roofing overhang have worked very well toponsive The siding and
perimntt ofthe stmrnre. ThzexcellenTcovdinon ofthe exterior envelope indicmes dent overM1migs
4 dindon of The mtad impallbuilding inthis clitemis
Sid inn Drcwf mmeefforts were Nprogrvu
ar TM1e time of The audh Aportivv of the gave system was Tot need ofreplacemenT.
Exterior doors are Dot themedly bmketa Fumy exmrior door replacement selection should include
Nis femme. Weether-stripping can exterior doors is To need ofreplacemeat throughout.
The dinel fine) day Take lacer l N The basement fire group room is vented wimin The spare. the result
of xthicb is ahnvybuildup of Neal rump uithN thz mom. 'fM1z fuel vrnt should be tertvinated
abme the roorovemang m eor,eet Thia goae.aplatinm
Heating Sveami
The m ildmg is heated by tun fuel oil boilers Nat provide hen as 0uee air handling wit systems, ha
coil wits, and ammeter hvdmnic sysians.
Both homers are cutrzndy muting on Together at The same serpomt of 140 F aM off at 160 F even
meant Boiler 1 is set to Tend on 160 F and off at 170 F, and Red 2 is set to come 0n at I s0 FN
175 F. The Thermostatic issands am and working currently and the conduction of simumnmm
boiler opeadons and boiler r mmi a shun -cycling is very meffiulent Isolating The stan&y, boiler is
recommended as a high prionry energy efbdenry measure (EEAI4, page 10),If the dialAimIff
system is kept in semce, it should be set up as follows for maximum operating efficimev:
• OpemtetheiedboilerwiNa3WFound,tronmgonatlfA`FmdoRatl90°F
• Opewethe lag boilerwith a 30`F dmAand, taming on at IA Faro offer l]o`F.
• Thclrad mdlag boilers sM1ould be mental momhly ro ensure ttival opereliog hours.
The remagrav ofNe fuel oil boiler o Improve
mpr system appears to be d good nDv flu; hoarevuhrond
Seale i3. Energy
can The modem improve its efrectiveoesz and efRcienry_These mz ouriNedin
Section 3. Energy Efficiency Measma'_
\Yntilatton Svnems
The building ventilation system consists of hope air handling units. iwr units are located in the ru'o
cin ins. The thud wit is in the boiler esters Thee are mu opemtin r eshaust finis, thee, mourned in
.ehmua Ne da roosm_Thesecovd mowted wtM1e boiltt roots evlauns rise lockxr
ins(tpn forshefanludobrokendrivebeltasthemotorwastumtingbin th fan was not)_ thud
cxlausr fen for she concessions kimhw space was not working at Ne dine of the audit
Neumadc Control Svstem
.4 pwwatic"cup is used to control the hearing and senNadoa system cmnponems. Multiple
pveiwatie pounds have failed tNoughom rise building n sWdug N an wabilay to properly control the
space heating and ventilating equipment The building is certainly not properly mlzing reason and
,,frlerelsm each of the space. Tsa resulr. occupant comf steak am subsmndardw
,,fineine bbuuilding spaces.
It is recommended dint Wz pneumatic sysem be Rplacedwith a direct digital coconut system, the
building record sequences be optimized and the synerss reoocomettissioned This recommendation
-not included in the energy elficimm measures because it will not pay for itself in energy rosin
however, it is important for occupera comfort end indoor au quality.
Usher -
Interior liglning prmrarily consists ofT12 and metal halide Iightma. Extador lighting primarily
nterg of operational
hours
art sir The interior wcal demand are ke t t oa in...d by without
As a resoss
1 �M1me ppemtional M1ours and sub.quent elcxmW demand are kept m a micowum without change
m inbawamre.
The lighting is not sufficiently efficient for concept electricitypricy and rertofit opportunities; exist
Tice majority of the planar Iightina tat gun is beneficial m hearing the building. This is considered
in the analysis which reducesthe enern savings ofliehting renufirz, even wiW the Rlatively high
cost of pro er
Smmrary
I is the assessment of the energy audit rzam det the Theme Bay staff are vm' focused we lowering
usumplon at the facilAy, in their daily operations. Most of the re e curnt icoeffids am du
x,
, erfin m
bJtaswctum issues such as a failed accountants air handling control sysem, boiler and boiler pump
ety owu and controls, and inefficient lighting_ This results in a diwader that cannot be corrected by
operanoral awareness alone Oulmrluithico Ae report aR recommendations for building envelope
as lhrg efforts. modifications to the building central sequrnces, and subsequent building retro-
-.c Ps rem 3 Eierm'iudni\b�emM'olli
Ener Effidenu Mmuns(EEMs)
A Itu Wings have opporluniii set improve thou energy el5timcy. The mew audit mvdM
nostiesous oppormmmi to witich an ef5uency maxstmenf wdl tesuhm a llot redactim io long-ts
opuaungmsis-
BeM1aviond and fiiotl EEMs
The following EEMs rKnue behavioral and operational changes m ft building me. The saimgs are
not rmddy quantifiable but thou Mls an: highlyt airinded as l9wcou oPPmtmilies that area
smndmd of ItiAt [xRmmavu bldivgs.
US4-1: Wmtli f-Spry Doors
E£M-2: Close Arcticll ry yDoors
EEM-3: Replace BmhenW doay
EEM-0: Replace Appliances xim Ece�Star Models
EEM-5: lower Thvmosut Selpoitim
EEM-6: Reduce Weight Room As Flow
H eh and Maki® %ority E
T folloxing EEMs arerecommendM for investment. They are ra by life cycle satings to
mv¢Onentrati9 (SM). Thu tmking method places a pmm�y on law wn EEMS which ran be
®rdimely fimdai, gmaating evetgy uvwgs to fwd M1igM1erunEES1s w the fo0oxing yens.
Nor¢ative values, wpatmthesis. upresem savings.
Ei Y¢rtR Ce dertAuak_sh
Investwmt Opentlng Eocrery io41 SQt
High Priori?
EESI7: Imlair Stmdbp Ballet
M
S3jf0
(S14,900)
(SII2W)
5TO
EEN-S: ReplaceAvetors
Sm
So
(SI9,700)
(SI8,800)
219
EEM-9-He-tamp Soft GwkCwly
Sim
(SIM)
(SES00)
($1,500)
1&0
EEM-10: Pvfmm BOJ¢C®busean T¢t
57W
52,30()
(S9,600)
(Sk600)
IOA
EESS-11, Lp®ade Mmots b Premwa Effivie
S3}03
SO
(S15,700)
(S12j0D)
49
Medium Priority
EE'I 12 Amovwc Valv¢wLl Hearers
SSjOo
SO
(S13A00)
(S12,1W)
33
EEM-13: Oq Gym HVACS39®
562-200
SO
(Sl S7,8o0)
(SIl M)
30
E 14: RWlace Lights
SL800
(SSW)
(53.900)
(V.M)
36
EEM-15_ tlpgrade Gym Lightae
522,4p1
(SLEW)
(S38,100)
(SII,30D)
LB
I£M-16: Insmll Boiler Rwm H¢t Rv
SIk000
H,600
(529.80(1)
(S9$W)
10
IM4-12: LWade!ismar Liepting
U42M
(R1,30J)
(S1630))
(S13,40M
I6
TEM-I8: Reph¢BoOn Bomm
vi;Ost
50
(S31,900)
(S10600)
13
EEM-19: Replan Dwf Gtatlav
S9,4g1
$0
(s13,6W)
(S4,200)
IA
EEM-20: Upgrade Bend Dym
-- sljw
s0
(s4m)
(m)
13
T".
S369,E06
(513}W)
( 02,100)
(SI16j00)
2A
`The aaalysrs is baud on inch EEM being md@mdmt ofthe others. While Ais likory that sorue EEMs
are mue lafed, m iwlated analysis is xsed to derxiioo wethe
aon0mhs
bcause the
audit tenor is
not
able m prtdict which 4 an isay choose t0 implenwat Hsevel E ate
isoplemmud, the
Iesallixigcn y avmgs is ltBety to di Ha fomthesnmofmch
EEMp jectim
tic 2
Introduction
This apes prszen¢ Wx findings ofan energy audit of the Thome Bay Gym locared m Thome Bay,
Alaska. The ptupose of this investment grade energy audit is to evaluate the infrastructure and its
subsequent energy perfomwce m identify applicable enersv efficiencies measures (EEMs).
The enany audit apart contains the fouowiyg secmus:
• Introduction: Building use and enegy consmarmon
• EnergyEfficiencyMermreswit adesmiption energy
anaq;i:, anarr wax con analy,is.
• Desorption of Systems: Background desenphov of the building energy systems.
Methodology: Basis for how canmushon and mavneni cost estimates as detirea and the
economic and energy, factors used for the analysis.
BUIIALVG USE
The Thome Bay Gym is a 19.494 square foot building that country; offil clasn000ss, commous,
lockv rooms, a muliTurpuse e3mmasimn nomge, and mecharmal support spaces. It is used in the
following mains
• Offices Monday -Friday, 8:00 am-5:00 pm
• Gym Monday -Friday, IO:00 ma -3:30 you (school)
Monday Friday- 3 30 pm-8 Wpm (community)
Saturday and Sunday, y-3 hours use
• Ventilation System Monday-Friday,&W am-Suo0 pm
Hooray
The Thome Bay Gym uas constructed in 1990.
Enter gs Consumption
The building rnemy, sources include an electric service and a fuel 00 auk Fuel oil is used for the
jorityofthe heating loads and domestic hot water while ela acity saes all olhor loads. The
following table shows annual energy use and cost
Annual Energy Consumption and Cost
Source Coosnmpyon Con Eaem'
OkaBm
Desire" IOLOOD k%% S27-,W 3,14) 23%
Fuel Oil 8,500 Gallons S354o0 1150 �
Tank 562,IO0 I.% IMM
Introduction
This report presents the findings of an mi my audit of We Thome Bar Germ located in Theme Bay,
Alaskz The purpose of Wier mresonent guide energy, audit is to evaluate the infinswicture and its
subsequent ®erzy, performance to tdentwy applicable energy efficiencies treasures (Ehyds)
n -
Thex _ audit report contains We following sections:
•Introducti in: Building use and energy consumption.
• Energy Effcwsic Mewnusu: Prionty tanking of the EEMs with a descnptionc energy
analysis, and life cycle cost awlysis.
• Description ofSRtema: Backgmtmd description of the building energy systems.
• McWodolopw'. Basis for how construction and maintenance cost xstimawei errs domed and We
economic and enemy factors used for the catalysis.
BL UDI\G USE
The Thome Bay Gym is a 19.494 square want handout that contains offices, classroom
locker moms, a multi -purpose gensco can, nonage, and mechanical support spaces. It is used in We
following memos.
• Offices Monday -Friday, 8:00 am-5:00 pm
• Gem Monday -Friday. 1000 con -333o pm(school)
Monday -Friday. 3'30 pm-8 00 pm (mrruamiry)
Saturday and Sunday, 2-3 hours use
• Ventilanon Synem Monday -Friday, 6:00 eon-4W pm
Hishery
The Thome Bay Gym was constructed in 1990.
Energy Consumption
Thebuilding energy mums include an electric service and a fuel oil tank Fuel oil is used for We
majoriry o£We heating loads and domestic hot water while electricity serves a6 other loads. The
following table shows amand energy ine and cost
Annual EnergyConsumption and Cart
Sousa Cousumptioa Con Eoetg,
KUfft
Elo,mon. I01000 1R3 527a00 3 23%
Fuel Oil 8AW Galloon 5354D0 1150 77
Touts - S5;700 1.4% 100h.
SgIDW 3
Energy Efficiency Measures
The following vier" efficiency creosotes(E ) were idmufied Avmg the mer" aodn The
E are Wordy saokM and, wfiem appfiable, subjected to®er" adlife cycle cost anatyas.
Appmdm A covuivs the fife cycle tort mulYsis spradsheam.
The EEMs are grouped into the folbvvivg Imwinood camgook s:
• Behavioral orOpvational:EEMs that require minimal capita ina'eswem bw require
opermoml wbehavioM charges. The EEMs provide alife cycle savings bur an arWvsis is
not perf r med because the guarmted enagv savings is difica t quantify.
• M&Pnonry: E sdust require a small capital investment and oRn a life cycle savings.
..Also includedm this category are highec cog that offer significant life cycle savings
• Medium PrionM EE tbst require a significant capful investment to pmside a fife cycle
savings. Many creditor 0mity E povide a high life cycle saving and offersubgavYSl
mcenme to incosse invesmicat in budding merge efficiency.
• Low Pnonty: E that wHI save imetity bar do art pmvide a life cycle savings.
BEHAVIORAL OR OPH IIOTAE
The charges
sthat c talcs are touommmded earthen
arths lemmntiom They requircbehnihes ar op1s are m
ebargcstiptfare be an with minimal iheyccuenttb accureely prune d- They These EEMs are tot
becaY quantifidbv analysisbecause
savthey ammbe m:cwstely a diced They are tourer®mdhA
lx because they offer alikcycle saving, represent goedpraztice, and are azcepted featuresoflticp
p-rfotmance bnildivgs.
EEM-]: WemherSvy llaors
Purpose: The weather strippiv8mmog oftheextenwdoorsumpmrcovditiom Ever"will be
sand if dons x proPvlY wcaWm-stripped to reduce i W duation.
Stops: Replace weather svippivg an exterior doors.
EEMd: OottArvf £nryxwy Ooorz
Purpose: meriw doors in the ardc maryway are being held open. This defems the ability of the
envy to immunize ivfdv atiou as pwple enter and leave the bwldmg. The raWt is the
cabinet heaters are operating at IWA apn .Ever" hill be sand effic inrziw
armc mvNvaY doors are kept closvL
Stope: Kecy mtdor arctic mbyway doors closed m®iv lobby access.
EEII-s: ReplaceBroken nmenv
purpose: k w;ndox has beenbroken on the ea,2 side of the nm building. Emm, will le sa.ed
ifthewindewisreplaced.
Scope: Replace the broken omdow
EEI14: Replace. pplianres with£ncop, Star Vadels
Propose: The drnM1s vn:M1ttand Mzrmthe cusmial closaarz not Energy 9armod-Is
Enerep Star %lodels arc the ecndard for M1ieh performance buildings. Fnere,',cfll be
eased ifthesic units are replaced with Energy Stromod-Is_
Scope PTzn appliances rzach the end oRM1xir zen iw hf. rsplacx them witM1 znergS Efficient
models.
EEII-5: Lower Thermoetut Segoinrs
Puryosx: Thermostat sttpoimsfor enclosed spaces throughout the G,m we higher than
an'. Tha wa most liken done to compensate for the poorly oprrming herein
and Ncarnation so stem In surronndma spaces. >lan. spaces such is Ne custodial
storage room nor ott _ iSF. Once the pnm euadc controls are replaced and me sssm res
are trollme properl.. maros-will be sa, of if thermustzts in all spaces are monarch
monitored to ensure theare set m efficient leeels.
Scope: Routimis inspect thermostat senores in all spaces to ensure efficient sxtpoims are being_
used Own completion ofPntumatic control replacement (see discussion on paee 11_
£EIF6: Reduce 11 eight Roam fir Flow
Propose : Scant, air flow rates is dte, eight room are ezcessne_ Poor diffuser deract has
tesWtzd ui rccssia miss keels. I ladon efpmper dampers and reducing Oow
rates will sate enmy and tzdum miss levels ui this spat _
Scope: Irrstall proper dampers and adjust or reduce flow rates to the proper Icicls.
-_, BI, G_ c Eno-,.\eYn Y,:m.Yanln
HIGH PRIORI ft'
The fdlowNg EEMs are recommended for implemenutiov because they are low cos measures Wert
hav-e a bightsins to ravestment ratio ISIR). The MIS are listed fiom hmNS to low EEC priority.
Nim i a vilues. in patemhesis, represent savings.
EEII lsolareseandby Boiler
Purpose: Only oneboder is remind to meet the healing load. However, the sandby boiler is
kept hot and enabled Keeping a s�y boil; hot in a dual boiler rysem can result in
a 3 % eNuency loss due to the standby boiler acting as a hat sml:- Etrcrgy will be
gogi if the sddby boiler is disabled and the retain valve closed to prcvxm flow
through the holler.
Scope: Disable the goodly bother and close me beating return valve to prevent flow through
thebotler.
MxeIGR APCE a
piTyapr�Q Frmm iotll ival Ca targeti
seo Issxl a I uw stwo Tx3pl �MI—J) Ino
EEVI Replan 4er4on
Purpose: Energy and water will be saved by replanng the aerators on ON lavatories and
showeA & with low = flow models.
Scope: Replare wri on lavatores and show chassds with war;-covservmg lNores.
✓III - iahl m�bnen C9 - Free S
I op� 'a[f"Ji l oI9L11 $9 �6t9TJp1 R19SG)j 219
£EV-9: Or -Lamps iDrink Cooler
Purpose: The lamp for soft track cooler in me coverssion mas roars continuously and is not
necessary. EnI will be saved ifNis lamp is removed
Senpe: Remove Tamp fiom soft drink Cooler on IN canensjmr stand
Re CYO ID
sines Oa:'alin9 iapl $9
siw sell s-our C+dool leg
££N-ID: Perform Boiler Combustion Test
Purpose: Operahvg Ne boJzr uiN an optimwt amotmt ofexcess avwin improve combusvon
eliicimcy,4mud cleaving folloxed bva combustion tes is ¢commenda
Scope: Amudty clean ad pzrfotmaeombvsuon tin on Aeboiler.
Form
herd - _ — _ SIR
SLID - - t04
££11-11: Lpgradeflomrsro Premium£fciener
Parposx: Equipment insawdom identified three motors that could be upgraded with Premium
efficiewc models to sale enerw_ Theyare:
• Pump P-1 IHP from 770. adherence to Ss x-, eRciencp
• Pump P-Y IHP from I]°u eficienn to 8i.5 8e efficiency
HP-1 : 9HP man 841, efficiency to 89 s", effrcinicv
Scope: Replace identified Morris is ith premium dficimcy motors.
- c nx Cr.I Curt
-
-�' i v�
\IEDILM PRIORITI
)tedium peorin £EVf rcquveaxmine and a hiJtxr Ixwl of ima�wc They are recemmrndxd
bzcame thn offer a life <.tle savings. Thx EE\6 are linxd fiom highest m least pwria.
E£11-11: /nseul/dummame taheson Lmi Hearers
Propose, Energv will be snood lithe nix wall and ceilme mounted unit heaters had an amornme
cafe rhat shuts off the hearing flow when hest is not rude& C=ndy the mils in the
nor heaters we continuously hot and the thermostat mar; on the fen to sui'the beat
to the mom. glen heat ricer needed comeeme heat loss how the coil occur,. some
efPoe M1rnt loss mac bx mefid. but a lard pemxmage ¢net.
Scope: Install automatic %mvein the ma supply to each wit baser in the,e spermsand
control them from the fan thorn osw
P
££11-13: Opdmfce Gym HINCSrm,,
Purpose : The mcra utilizes a consent dogs heating and amx ladon to cwditioned the pace The
desirned for peaw k occupn Iexels, havbox m ve%er the space M1mi eat
occupants
pants throughout the majority of the operational hours. Enerec will be sated if
VFD modificrim is made to the HV-I ss stem to reduce as flow when not needed and
to anchor tempe2NR control.
Scope: Perform reforms as follows and retro-commissim TF,-I when completed:
- Install a VFD for HV-1
Add a COI swwr and control scheme to mad_ I:^e the mixing mart in response
to CO, levels in the cchr
EEM--14: ReplauiF Uigh s
PuryoSz: Therearesnt bculli¢h[shlighthas tbelRFl bulbs. he gY'°tharare utiliane
rail are nn aced . is plabut[ has a l5-uan bulbs. Eneay will be saved Sthe exit
hghts are replaced xith phmo lurttineuvnt sips.
Scope: Replace the ex:uin¢ exit signs with photo luminescent gait signs,
MneICT. Fii CY%k G.:u
9amiap t -ms mamae S^a7 S
—.� I �6zam Iszlill I nsm s*ml I�-m� I i=-, zs
EEM-15: Lpgrvde GJm Lighting
Propose: E.xistngnern lightine utiliines 24 pendant-mountM 400-xan meW halide lamps.
Similar light levels could be achieves wish LPD lighting. Energy mill be saved if We
24 meal halide light features are replaced xiN LM muss.
Scope_ Replace Gym 400-wan mend halide lights mitts LED units.
MM1GICNB uRLymecens
6m4+a FraaY 'alal meslreitl Radii SIR
i41 r513G1 6_PMI S2LkO I is! 1-il91 ) :se;m I IB
£EN-I6: hurv(Iltoi/er Rvvm Bevr Reem'ery'
ounces. Theboder mom utilivsinln avd oWtt dills ro echaust air out'dethe space. Energy
rill he savcN iftbe but ¢rneated fiom Ne boiler mom is use wi@in We bwlding
rnvelap.
Scope_ Install a but recovery uait in the boiler mom space.
Nmslta6 Lds: rk Cn�
a1an O3 FnIX i AI aMa�a fr¢IR
52<0 Sb5p1 lbRJl St61py 519fl iSL bfAI 154Ho 16
£Gaf-Il: Lingrudelnrerivr Lighting
Pontiac The jarhyofNe GymmtenorlighnngconsisuofTl211uorescentfutmu_ Energy
uill be saved dera re efficient Te and compact ❑uorcustratbulbs are usM.
Scope: Replace existing TI'_ fixtures xitb more efficient Tg hxnue:.
IB
16
££11-I4: Replace2ii Lights
Purpose: There aresix exhlints Wourbourthe l sinoor ofthessm that aeurilizing
candescent bulbs. Each lint has a 15-wan bulbs. Energy mill he Based if the exit
lights are replaced wnb photo luminescent signs.
Scope: Replace the exerting exit sins with photo luminescent exit signs.
- -- ' sux>cl 26
££Df-li: LpgmQe Gl'm L'gM14ng
Purpose: EstingrymlieMwgud be achieved
LEDliihting.nmgy milli be lamps.
t4 notaligMleligtoWdbea re re dmith LED lighting. Energy will be Based ifthe
i; meW halide light fixtures are replaced with LED wits.
Scope: Replace Gym 400-wart moral halide hebts with LED wits.
Taal Lv56 Ih Cytl:C055
i�d InrtnHA d46ra
! s'Tz 31 _GI At S<2' AW p16w1 6ivial Mq R+�$T 19
£EM-16: Install Bailer Roam Hear Remy ene
Purpose: The wilerroom utilizes wla and water gills to eahz¢¢ air outsidethe space. Enersy
will be saved Jthe heat ernemted from the boilermom is use xiNw the building
em¢lop-
Scope: hetall a beat reeovery wh in the boiler room space.
lm¢ILmb l:e CjdE fnr
9au31in] Em]iv i4d frvaMisl park. U11
116261 St13" Sittig62ogpl 15XYJI 16
EE31J7.' C'g-rodebasernar Lighurg
Purpose: The mahwav of the then w eriorliahvng consists ofTll nuwresrent fixtures. Energy
mill be sased if more efficient TS and compact fluorescenl bulbs are use
Scope: Replace existing TL flames with mom efficient TS Extuas.
16
v � L6
LOW PMOFU�
Law poems, EE\U do not offer a life excle wargy savings and are mvemnmended
EEV-]f: Irmall Locker Ocra4anny Sensor
pmpne Lighting mntools for pre locker rooms are manoai switch only. This Tortoises the
space to tit tM1roughom Weentire period The Kin is open, regardless of use. Energy
will he saved if motion detector is installed in dw shower space, the remoom space,
and the l«ker space of racM1 l«kermom to minimizeumecasaryliehtiag M1ours. his
recommrndnl mat a 10-minme delay time is used on We occtrymry sevsor.
Scope_ Innatt motion dnecters in the slsowa space, the resomom space, and the locker spatt
to comrol locker room Iialning.
g SW
_e 9,1W h5
Description of Systems
ENERGY SYSTEMS
This section presides a emersl desenpfion ofthe building synetm. Energy coneenation
oppom sees are addressed in Section 3. Enervy Efficiemn �lzuures.
Building Em elope
The h1pouingtablesummmbrestheevstinaemelope-
R-calve
Component
Description (inside to outside)
Emodim
Optimal
Evznm \\'all
58-G3p-Bd2x8"xud scads vt R-19 Fa2'E' phx'wd, side
R-18
R-_6
Roof
i8- Gin Bid R-30 haq mass assembly told roof
Ri'_
Ra
Floor Slab
i'covtre slaban-gede
R-10
R-10
F,mdadon
8-counts with 3' titd wsWaua on "tenor sm(ace
R-10
R20
\Cindoxs
Fiberelaszsio^le pave with storm xivdox'v
R-16
R3
Omrs
Sueldwrs. Morsxglazing me em+le Fam.
R-IS
R-s
Reading SFstem
The budlde is hemetj in to (uel oil boilers that prinme beat to fire air handling unit salems. a
muse up immut in the shop. fan roil whs, and perwmm M1yNonic s'nems. ihemomingsy.emhis
the follox'ing pumps:
Pump P-1 is a boiler contrition pump
Pump is l is a lumler ciremadon pum b
• Pump Pdisrbedome»chotxmzrbzatmgpump
Pump P4 is the domestic honsmer recuculatim pump
BT C.n L Fnervv.AwnWtncmb,t 10111
vendladon SSnems
The following table summmbes the venm tion s2aems ur the building_
\'eadurnion Seems
Domesdc not 11 rater System
.M oil fired direct hot water healer supplies domestic but water to the futures. The water
wmenation eficienev of the rowsrs on the lavatories and the showerhads con be improved.
Automatic Control System
The building doesnot have a OOC system to council the operation ofthehadae and regulation
systems, A pneumatic conwi systet is used to control the operation ofthe hating and vendlamn
system This sgaem is well pan its useful life, resulting in mopeable damper and valvecont of on
ciitial Svnem computations,
Lighting
Interior hehtine primarily consists ofT12 and metal halide lighting. Exterior lighting consists
the perilyoerlish this ughtine. staff.
nabloss ngscbedilgence. operations
and
the perimetereericae. a controlled by stag. Thanks m sWFdilieace.lighting operatiooai homy and
subsequat elmncal demand are kepr to a minimmn
Electric Equipment
Comm scial klmhen egommmt for food preparation at Thome Bay Gym was loeased in the
Methodology
Information forme coerce audt woo sathered threuch en -airs observances. review of Consumerist
documents. and mtxniews with operenon and mamrswnre persowxl. Thz EEMs are eNaltmed uzina
enerlycod life Cycle cost cooNse5 and are poems sorted fonmplemmtarien.
Energy Effictent3 Measures
Eneow eRciencs mcaures are identified by evaluatine the buildi o, s entries pirems and computing
them to systems in moderm high performance buildings. The proves for idendfiins the Miss
zcknow[edges the realities of an existing building that was mmtmmzd when meter casts were much
looser Mans of the opperammes used in modem high performance bwldi e—highly insulated
m.elopes. ramble capacity mechanical sssrems.. beat pumps. da. behtmar lexhure Conwls. etm—
simply cannot be economically incorporated into an xu»mc buihime.
The EE}1s represent practical measures to improve the entry efficiency of the buildings. raking into
set the realists oflimir i budgxu.Ifa fusee major renoranon pmjm occurs addinerul EE Is
common to high performance buildings should be mzmpomted
Life CNCie Cost Analysis
The EE\ts are evaluated using life ncle cast wed sis which clecrmins San emmy etTiciencN
seem nil] provide a savings over a 3S-year We. The analysis mempomtes co arricuom
rcplzeepnmm, mairommooz, repair.. and energy costs to detertttine the Total con merthe life ofthe
EEy1 Futme maintenance and rnergv cash Flowz are discowsmlm prssemwosth wino esmlauoe
iwors for general mdanom, mere- inflation. and the value ofmonep. The methodology isbased on
are National imdwe ofSundatds and Technology INIST] Handbook 135 -Life Cycle Cost
Life cycle cost analysis is preferred to simple payback for facilities that have lumu�fim peripirmid—
sersicelnes. Simple payback which compares construction cost and present energy cost is
reasonable for shun none perods of 14 yews, butSclds below optimal results over longer peroids
b.-case it does not progerbaccount for the time Name of money or inflanonmr effects on operating
bedsore. Accounting for meaty inflation and the time value often, properly sums the true con of
facility ownership and seeks to minimize the life stele cast.
Construction Casts
The cost estimates are ileved based on aprslim oury understanding ofthe scope ofeech EEM as
mNeted during the walk-through audit. The construction costs formhomelabor are $60 per how for
work typically performed by maimmanee staffand SI10 pet hour for contract labor.
The cost estimate assumes the work will be performed as part of a larger rermanon or turns,
efficiencyupgrade project Nice implementing EESfs. the cost estiwte should be revisited once the
scope and preferred method of pertntming the work has been detesmmed. It is possitle some EEM,
will not provide a life cycle savings when the scope is finalized
mo„,s n Emu. nwitr>e..mter`mn
Maintenance Costs
\faimrnance costs are bash on in-house orconmm laborusing histotiral mvmenaic¢ efforts and
indpsny standard-Maintetunce costs over tbe 2c-yeti He of ach EEM are included in the life cycle
cast circulation small less and repreaent the level of effort to mvnttin the s:stems.
Enem,firmlvsis
The aeigyperformavice otm EE\f is nsluated within the operetmg parameters ofNe building .a
earmcs
audit meld rely sa a compma model ofNe bpfldina m imegate buildmo
systans and evaluate ene ener_w goings
me ofach ed \Jt This im that act gade audit does not
ofam ow fthebmodel. soaerey.iminanarestsamtedwithfcmththat-yeomiE for rlifofNe dynamic
mung appropriate factors
for enter"
sammgs and urns are estimated for the 25-year of me EEM
usms approptiate funs (ormerpy wflatie.
Priorisatiov
Each EEM is prioritized based on the life crate saving to iavestmmt ratio (9R) using me following
formula.
Prismonamoo Factor=Life Cycle Sadnes/ Capital Cross
Tbis approach factor pus genificaut weight on the capital con ofant EEM. maing lower cast EEMs
more fin enable.
Economic Factors
The follox,ine economic factors art s omicmno the f dine.
Nominallmarest Rate: iltisis the vomwl rote ofrenwmminveztment xiNoutre�d to
inflation. The malvss uses a me of59:.
Inflation Rate_ This is the averve hiflationary change m ptirea men time. The analysis uses
an inflation rate nf2Gr.
armonnicisemid_ The aalysis i. based on a 25-y econo ric period wiN constmcdon
begnntaoin2010_
Peel C)d
Fuel oil currently (Octobm2ol l( costs 5 .16 per gallon for a zasonally adjusted blend of-1 and x2
Net oil. The analysis isbased on 6%fuel oil inflation mbieb has beer be average for Nepad 20-
Elec
Elecmiciry is supplied bs Alaska Poorer and Telephone. The building is billed for ele rncin under
Alaska Pox er CompamBulk Pox or A rate. This rate chanties for bmA elated consumption
IkPTI and peak eledric demand (VA I. Electrical consumption is the ameum of erodes cousune i and
elechric dmund is the rate of consumption,
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Summers
The 011ouing Coble summatiza the enzrgc and emnomuc Factors used in the analcsis.
Sammanor Econamic and Ener,� Factors
Fawas,
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Factor
Rate or Cost
[,initial Dnx,uni Rate
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Abbreviations
Afiti
�irhwdlingwit
BTL'
British thermal wit
MiW
Hot water recirtulatino pump
BTLH
ELLU per how
KV.A
I:ilmolta s
CIA
Cig and Bomueb of Juneau
kW
Kilowau
C\fG
Concrete mawwv unit
kR1
Reow an how
CO'
Carbon dioude
LED
Licht emimne diode
cum
Cabinet wit heater
NEE
IOM Btu per hour
DDC
Direct dowal wntrah
NENUM
1,000.000 But per bow
DW,
Domestic hot a nor
DAD
Outside air damper
E.AD
Exhaust av damper
R.AD
Return air damper
EE\I
Entree effciznca measure
RF
Retwa fin
EF
Exhaust fan
SIR
Smwo� to im'mment Two
Gyp Bd
Gypsum board
SF
Supply we
MAC
Heating, Fentiladne. Air-
HO
Cnir.mulator
condhlorma
l:AV
Variable air %chime
HR
Hot outer
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