towerwise.ca energy savings in multi-suite residential buildings: case studies teeac meeting...
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TowerWise.caEnergy savings in Energy savings in Multi-suite Multi-suite residential buildings:residential buildings:Case StudiesCase Studies
TEEAC Meeting TEEAC Meeting November 3November 3rdrd , 2011 , 2011
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OutlineOutline
New ConstructionNew ConstructionAppleby WoodsAppleby Woods
Combined Heat and PowerCombined Heat and PowerBloor StreetBloor Street
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Appleby WoodsAppleby Woods
Design Objectives:Design Objectives:
Reduce operating costs Reduce operating costs through good building through good building design design
ConservationConservation
Renewable Energy SourcesRenewable Energy Sources
101 condominium suites101 condominium suites
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Appleby WoodsAppleby Woods
Building EnvelopeBuilding Envelope
Insulated concrete formsInsulated concrete forms
Low window-to-wall ratioLow window-to-wall ratio
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Appleby WoodsAppleby Woods
PV GenerationPV Generation
Grid-tied, roof-mounted Grid-tied, roof-mounted PV systemPV system
Stand-alone LED parking Stand-alone LED parking lot lighting unitslot lighting units
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Appleby WoodsAppleby Woods
Ground Source Heat Ground Source Heat Pump SystemPump System
54 boreholes in the 54 boreholes in the parking lotparking lot
Hydronic loopHydronic loop
Suite-based water-to-air Suite-based water-to-air heat pump and fanheat pump and fan
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Appleby WoodsAppleby Woods
Other featuresOther features
Dual flush toiletsDual flush toilets
Energy Star appliancesEnergy Star appliances
Low-e argon-filled Low-e argon-filled windowswindows
Motion-sensor parking Motion-sensor parking garage lighting in stallsgarage lighting in stalls
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Appleby WoodsAppleby Woods
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Bloor StreetBloor Street
Pre-Retrofit Situation:Pre-Retrofit Situation:
326 rental suites326 rental suites
Built in 1980Built in 1980
Needed to replace Needed to replace emergency power systememergency power system
Pilot CHP systemPilot CHP system
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Bloor StreetBloor Street
Design and InstallationDesign and Installation
335kW electrical output335kW electrical output
1.4MMBTU thermal output1.4MMBTU thermal output
Housed in a 40ft container Housed in a 40ft container located on the rooflocated on the roof
Commissioned in July 2009Commissioned in July 2009
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Bloor StreetBloor Street
Energy PerformanceEnergy Performance
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Bloor StreetBloor Street
CHP System supplies about 40% of annual electrical CHP System supplies about 40% of annual electrical demand while producing waste heatdemand while producing waste heat
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Lessons LearnedLessons Learned
New ConstructionNew Construction
Low energy features for Low energy features for lessless
Combined Heat and Combined Heat and PowerPower
Detailed planning processDetailed planning process
http://www.stlucieco.gov/planning/planning.htm
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For More InformationFor More Information
Energy Retrofit Case Studies on the Energy Retrofit Case Studies on the TowerWise WebsiteTowerWise Website
http://towerwise.ca/case_studieshttp://towerwise.ca/case_studies