Post on 07-May-2015
11/30/2009
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
PPRESENTEDRESENTED BYBY::Sandy HouckSandy HouckSandy HouckSandy Houck
December 3, 2009December 3, 2009
BRUMMITT ENERGY ASSOC IATES , INC ..Helping people achieve very energy efficient buildings
11/30/2009
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
OOVERVIEWVERVIEWOOVERVIEWVERVIEW
Defining Defining DaylightingDaylightingDaylight ModelingDaylight ModelingOptimizing Energy SavingsOptimizing Energy SavingsA Performance A Performance DaylightingDaylighting StudyStudy
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
QQUALITIESUALITIES OFOF DAYLIGHTINGDAYLIGHTING……DDAYLIGHTAYLIGHT ISIS DYNAMICDYNAMIC
FFFFULLULL SPECTRUMSPECTRUM
PPHOTOHOTO CCREDITREDIT: LRC : LRC DDAYLIGHTINGAYLIGHTING DDIVIDENDSIVIDENDS
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
PPHOTOHOTO CCREDITREDIT: G: GREENREEN SSOURCEOURCE MMAGAZINEAGAZINE
MMOREORE DAYLIGHTINGDAYLIGHTING BENEFITSBENEFITS……MMAINTAINAINTAIN CCIRCADIANIRCADIAN RRHYTHMHYTHM
RRRRELAXELAX EYEEYE MUSCLESMUSCLES
AALLEVIATELLEVIATE SSICKICK BUILDINGBUILDING SYNDROMESYNDROME
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
WWHATHAT WEWE DODO NOTNOT WANTWANT TOTO CREATECREATE……A A SAUNASAUNA WHEREWHERE PEOPLEPEOPLE HAVEHAVE TOTO WORKWORK
PHOTO CREDIT: DAYLIGHTING COLLABORATIVE
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEIESTRATEIES
WWHATHAT WEWE DODO NOTNOT WANTWANT TOTO CREATECREATE….….A “A “DOUBLEDOUBLE--LITLIT” ” SPACESPACE
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
WWHATHAT WEWE DO DO WANTWANT ….….CCREATEREATE DDRAMATICRAMATIC & & DDYNAMICYNAMIC SPACESSPACESDDYNAMICYNAMIC SPACESSPACES
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
WWHATHAT WEWE DODO WANTWANTWWHATHAT WEWE DO DO WANTWANT….….QQUALITYUALITY VVISUALISUAL EENVIRONMENTNVIRONMENT
VVIEWSIEWS TOTO THETHE OUTSIDEOUTSIDEVVIEWSIEWS TOTO THETHE OUTSIDEOUTSIDE
NNATIONALATIONAL WWILDLIFEILDLIFE FFEDERATIONEDERATION HHEADQUARTERSEADQUARTERS, , RRESTONESTON, VA. , VA. (P(PHOTOHOTO CREDITCREDIT: : HHELLMUTHELLMUTH, O, OBATABATA & & KKASSABAUMASSABAUM))
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
HHOWOW DODO WEWE DODO THATTHAT??UUSESE DAYLIGHTDAYLIGHT ((DIFFUSEDIFFUSEUUSESE DAYLIGHTDAYLIGHT ((DIFFUSEDIFFUSESKYLIGHTSKYLIGHT) ) ASAS PRIMARYPRIMARYSOURCESOURCE OFOF ILLUMINATIONILLUMINATION
CCREATEREATE UNIFORMUNIFORMCCREATEREATE UNIFORMUNIFORMILLUMINANCEILLUMINANCE
IINTEGRATENTEGRATE WITHWITH ELECTRICELECTRICLIGHTINGLIGHTINGLIGHTINGLIGHTING
PPHOTOHOTO CCREDITREDIT: LRC L: LRC LIGHTINGIGHTING DDIVIDENDSIVIDENDS
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
DDESIGNESIGN FORFOR DAYLITDAYLIT SPACESSPACES……TTASKASK/A/AMBIENTMBIENT LLIGHTINGIGHTING DDESIGNESIGN
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
DDESIGNESIGN FORFOR DAYLITDAYLIT SPACESSPACES……LLIGHTIGHT COLOREDCOLORED SURFACESSURFACES
‘‘ ’’AAVOIDVOID ‘‘CAVECAVE’ ’ EFFECTEFFECT WITHWITH LIGHTLIGHTCOLOREDCOLORED CEILINGCEILING
LLAMPAMP COLORCOLOR TEMPERATURETEMPERATURE(M(MININ. 4100K). 4100K)
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIESDDDDESIGNESIGN FORFOR DAYLITDAYLIT SPACESSPACES……
PPROVIDEROVIDE GLAREGLARE CONTROLCONTROL
ARCHITECTS ARCHITECTS hannahanna gabrielgabriel wells Headquarterswells Headquarters
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
DDAYLIGHTAYLIGHT MMODELINGODELING TTOOLSOOLS
1.1. SSIMPLEIMPLE GGRAPHICRAPHIC TOOLSTOOLSSSOLAROLAR AANGLENGLE SSTUDYTUDY
DDAYLIGHTAYLIGHT ZONEZONE MAPPINGMAPPING
22 PPRESCRIPTIVERESCRIPTIVE TTOOLSOOLS2.2. PPRESCRIPTIVERESCRIPTIVE TTOOLSOOLSLEED LEED VV2 & 2 & VV3 D3 DAYLIGHTAYLIGHT CCREDITREDIT EQEQCC8 8 SSKYCALCKYCALC
3.3. PPERFORMANCEERFORMANCE TTOOLSOOLSIILLUMINANCELLUMINANCE CCALCULATIONSALCULATIONS ((SOFTWARESOFTWARE))PPHYSICALHYSICAL MMODELODEL
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
Whole Building Design GuideWhole Building Design GuideWhole Building Design GuideWhole Building Design Guide
SOLAR ANGLE STUDIESSOLAR ANGLE STUDIES
LBL “Tips for LBL “Tips for DaylightingDaylighting with Windows”with Windows”
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
DAYLIGHT ZONE MAPPINGDAYLIGHT ZONE MAPPING
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
SKYCALCSKYCALCTTOPLIGHTINGOPLIGHTING ONLYONLY
EEXCELXCEL SPREADSHEETSPREADSHEETEEXCELXCEL SPREADSHEETSPREADSHEET
FFREEREE PROGRAMPROGRAMWWWWWW..ENERGYDESIGNRESOURCESENERGYDESIGNRESOURCES..COMCOM
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
SSKYCALCKYCALC
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
IILLUMINANCELLUMINANCE CCALCULATIONALCULATION SSOFTWAREOFTWARE
AAUTODESKUTODESK’’SS EECOTECTCOTECT ((DAYLIGHTDAYLIGHT FACTORFACTOR))
RRADIANCEADIANCE ((RENDERINGRENDERING))FREEFREE
DDAYSIMAYSIM
FREEFREE
SPOTSPOTFREEFREE
LLIGHTINGIGHTING AANALYSTSNALYSTS’ AGI32’ AGI32
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
AGI32AGI32LLIGHTINGIGHTING AANALYSTSNALYSTS, I, INCNC..
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
AGI32AGI32LLIGHTINGIGHTING AANALYSTSNALYSTS, I, INCNC..
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
PPHYSICALHYSICAL MMODELODEL
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
SSOURCEOURCE: : DDAYLIGHTINGAYLIGHTING CCOLLABORATIVEOLLABORATIVE
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
6 E6 ESSENTIALSSENTIAL IINGREDIENTSNGREDIENTS FORFOR DDAYLIGHTINGAYLIGHTING TOTO OOPTIMIZEPTIMIZE EENERGYNERGYSSAVINGSAVINGS (IES RP(IES RP--5)5)
1.1. PPLANLAN INTERIORINTERIOR SPACESSPACES FORFOR ACCESSACCESS TOTO DAYLIGHTDAYLIGHT
2.2. MMINIMIZEINIMIZE DIRECTDIRECT SUNLIGHTSUNLIGHT ININ VICINITYVICINITY OFOF CRITICALCRITICAL VISUALVISUAL TASKSTASKS
33 DDESIGNESIGN SPACESSPACES TOTO MINIMIZEMINIMIZE GLAREGLAREArch
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redi
ents
3.3. DDESIGNESIGN SPACESSPACES TOTO MINIMIZEMINIMIZE GLAREGLARE
4.4. ZZONEONE ELECTRICELECTRIC LIGHTINGLIGHTING FORFOR DAYLIGHTDAYLIGHT RESPONSIVERESPONSIVE CONTROLCONTROL
A Isi
gner
nt
s
5.5. PPROVIDEROVIDE FORFOR DAYLIGHTDAYLIGHT RESPONSIVERESPONSIVE CONTROLCONTROL OFOF ELECTRICELECTRIC LIGHTINGLIGHTING
6.6. PPROVIDEROVIDE FORFOR COMMISSIONINGCOMMISSIONING & & MAINTENANCEMAINTENANCE OFOF AUTOMATICAUTOMATICCONTROLSCONTROLS
EE/L
tg. D
esIn
gred
ie
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
1 PLAN INTERIOR SPACES FOR ACCESS TO DAYLIGHT1 PLAN INTERIOR SPACES FOR ACCESS TO DAYLIGHT1. PLAN INTERIOR SPACES FOR ACCESS TO DAYLIGHT1. PLAN INTERIOR SPACES FOR ACCESS TO DAYLIGHTORIENT BUILDING TO MAXIMIZE DAYLIGHT POTENTIALORIENT BUILDING TO MAXIMIZE DAYLIGHT POTENTIAL
--Long and narrow footprintLong and narrow footprintLong axis running East/WestLong axis running East/West--Long axis running East/WestLong axis running East/West
--High % perimeter areaHigh % perimeter area
Whole Building Design GuideWhole Building Design Guide
IESNA RPIESNA RP--55
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
INTERIOR SPACE PLANNING TO MAXIMIZE DAYLIGHTINGINTERIOR SPACE PLANNING TO MAXIMIZE DAYLIGHTING
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES2. 2. MINIMIZE DIRECT SUNLIGHT IN VICINITY OF CRITICAL VISUAL MINIMIZE DIRECT SUNLIGHT IN VICINITY OF CRITICAL VISUAL
TASKSTASKS3. DESIGN SPACES TO MINIMIZE GLARE3. DESIGN SPACES TO MINIMIZE GLARE
IESNA RPIESNA RP--55
Whole Building Design GuideWhole Building Design Guide
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
4. 4. ZONE ELECTRIC LIGHTING FOR DAYLIGHT RESPONSIVE CONTROLZONE ELECTRIC LIGHTING FOR DAYLIGHT RESPONSIVE CONTROL
IESNA RPIESNA RP 55IESNA RPIESNA RP--55
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
DEFINING DAYLIGHT ZONES:DEFINING DAYLIGHT ZONES:
Side Lighting Side Lighting DaylitDaylit ZonesZones
Top Lighting Top Lighting DaylitDaylit ZonesZones
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIESSIDELIGHTINGSIDELIGHTING –– DAYLIT ZONEDAYLIT ZONE –– TITLE 24 2005TITLE 24 2005SIDELIGHTING SIDELIGHTING DAYLIT ZONE DAYLIT ZONE TITLE 24 2005TITLE 24 2005
SOURCE: CA TITLE24 NONRES MANUAL
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIESSIDELIGHTING SIDELIGHTING –– DAYLIT ZONE DAYLIT ZONE –– TITLE 24 2008TITLE 24 2008
SOURCE: CA TITLE24 NONRES MANUAL
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIESTOP LIGHTING DAYLIT ZONE TOP LIGHTING DAYLIT ZONE –– TITLE 24 05 & 08TITLE 24 05 & 08
SOURCE: CA TITLE24 NONRES MANUAL
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
5. 5. PROVIDE FOR DAYLIGHT RESPONSIVE CONTROL OF ELECTRIC PROVIDE FOR DAYLIGHT RESPONSIVE CONTROL OF ELECTRIC LIGHTINGLIGHTING
Credit: LC&D, Credit: LC&D, LutronLutron & & WattStopperWattStopper
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
CCONTROLONTROL SCHEMESSCHEMES FORFOR DAYLITDAYLIT ZONESZONESOONN//OFFOFF SWITCHINGSWITCHING
SSAVESAVES THETHE LEASTLEAST AMOUNTAMOUNT OFOF ENERGYENERGY OFOF ALLALL 3 3 CONTROLCONTROL SCHEMESSCHEMES
SSTEPPEDTEPPED SWITCHINGSWITCHINGSSTANDARDTANDARD BIBI--LEVELLEVEL OFOF CACA TTITLEITLE 2424SSTANDARDTANDARD BIBI--LEVELLEVEL OFOF CACA TTITLEITLE 2424WWORKSORKS WELLWELL ININ SSOUTHERNOUTHERN CCALIFORNIAALIFORNIA
DDIMMINGIMMINGLLEASTEAST NOTICEABLENOTICEABLE CHANGECHANGE ININ LIGHTLIGHT LEVELSLEVELS
HHIGHERIGHER INITIALINITIAL COSTCOST, , THUSTHUS LONGERLONGER PAYBACKPAYBACK
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
T24 MT24 MANDATORYANDATORY CCONTROLSONTROLS & C& CONTROLONTROL CCREDITSREDITS::
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
OOPENPEN LLOOPOOP PPHOTOSENSORHOTOSENSOR PPLACEMENTLACEMENT
LLIGHTINGIGHTING CCONTROLONTROL & D& DESIGNESIGN
Applications:Applications:LobbiesLobbiesLobbiesLobbiesCirculation SpacesCirculation SpacesWarehousesWarehouses
WWATTATTSSTOPPERTOPPER
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
CCLOSEDLOSED LLOOPOOP PPHOTOSENSORHOTOSENSOR PPLACEMENTLACEMENT
Applications:Applications:llClassroomsClassrooms
OfficesOfficesLabsLabs
LLIGHTINGIGHTING CCONTROLONTROL & D& DESIGNESIGN
WWATTATTSSTOPPERTOPPER
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
6. 6. PROVIDE FOR COMMISSIONING & MAINTENANCE OF AUTOMATIC PROVIDE FOR COMMISSIONING & MAINTENANCE OF AUTOMATIC CONTROLSCONTROLSCONTROLSCONTROLS
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SIDELIGHTINGSIDELIGHTING –– DAYLIT ZONEDAYLIT ZONE –– CALCULATEDCALCULATED
OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
SIDELIGHTING SIDELIGHTING –– DAYLIT ZONE DAYLIT ZONE –– CALCULATEDCALCULATED
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
ARCHITECTS ARCHITECTS hannahanna gabrielgabriel wells Headquarterswells Headquarters
11/30/2009
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
ARCHITECTS ARCHITECTS hannahanna gabrielgabriel wells Headquarterswells Headquarters
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
all ltg zones
ONltg
Daylight Harvest Potential
for Open Office Area
ON7%
zones a and c OFF8%
all ltg zones OFF85%85%
Interior LightingLighting Power Density
(W/SF)*
Installed lighting – without controls 0.82
Prescriptive ‐ with T24 daylight control credits 0.53
Performance ‐ estimate based on daylight modeling in open office
0.30
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
ARCHITECTS ARCHITECTS hannahanna gabrielgabriel wells Headquarterswells Headquarters
11/30/2009
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
TTHEHE MANYMANY BENEFITSBENEFITS OFOF DAYLIGHTINGDAYLIGHTING……HHEALTHIEREALTHIER && HAPPIERHAPPIER EMPLOYEESEMPLOYEESHHEALTHIEREALTHIER & & HAPPIERHAPPIER EMPLOYEESEMPLOYEES
NNOTOT ONLYONLY COMPLYCOMPLY WITHWITH T24, T24, DODO BETTERBETTER THANTHAN T24T24AACHIEVECHIEVE LEEDLEED POINTSPOINTS
RREALIZEEALIZE ENERGYENERGY SAVINGSSAVINGS
EEARNARN UTILITYUTILITY INCENTIVESINCENTIVES
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OOPTIMIZINGPTIMIZING DDAYLIGHTINGAYLIGHTING SSTRATEGIESTRATEGIES
PPRESENTEDRESENTED BYBY::PPRESENTEDRESENTED BYBY::Sandy HouckSandy Houck
shouck@brummitt.comshouck@brummitt.com
December 3, 2009December 3, 2009
BRUMMITT ENERGY ASSOC IATES , INC ..Helping people achieve very energy efficient buildings