house calls presentation610
Post on 13-Sep-2014
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House Calls Program
3 Goals:Save Money
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Improve the EnvironmentGreater Comfort and Health
Economic ImpactAverage annual operating costs
Heating & hot water
Electric
Water
OtherDebt service
Real estate tax
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Utilities19%
58%
24%
18%Labor
Council of New York Cooperatives & CondominiumsComparative Study of 2007 Average Operating Costs of 225 buildings in
outer boroughs
2005 NYC citywide CO2 emissions: (58 million metric tons)
- From PlaNYC-
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Environmental ImpactSources of CO2 emissions in New York City
Building Health and ComfortInefficient heating of apartments
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68º is the recommended indoor temperature in winterCourtesy of Power Concepts
Building Health and ComfortThe Stack Effect
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How do we get started?Taking Action:
What exactly can we do? How much is it going to cost?
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Self Audit and BenchmarkingDetermine and Compare Your Building’s Performance
Individual buildings
Individual buildings in single owner’s portfolio - 74 total buildings
• Average NYC building index: 15*
Heating index (Btu/ft2/HDD)
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Self Audit and BenchmarkingFuel Cost Discrepancy and Overspending
Energy & Water Consumption DataRecommended Measures
Cost/Benefit Analysis
Reduction Target
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Analyzing the Building’s SystemsGetting a professional energy audit
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Areas of ImprovementPer unit and building wide
- Heating and hot water
- Building Envelope
- Lighting/Appliances
- Ventilation and
infiltration
- Water Conservation- Indoor Air Quality- Waste/Recycling
- Management/Operations
- Adjusting Behavior
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THEN
ENERGY GENERATIONENERGY EFFICIENCY
Prioritizing ImprovementsMaximizing economic, environmental and health benefits
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Heating and hot water• Overheated apartments
• Not enough hot water on very cold days
• Showerheads with high water consumption
- Apartment temperature controls $20,000
- Replace with condensing gas boilers $105,000
- Showerheads and aerators (DHW) $510
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Case study - Affordable Housing59 units built in 1993 with hydronic baseboard heating
Ventilation and infiltration• Top floors over-ventilated, bottom
under-ventilated
• Belt driven rooftop fans exhausting air from kitchens
- Seal, clean ducts and balance air flow$78,400
- Replace rooftop fans for premium efficiency
$22,000
Case study - Affordable HousingContinued
TOTAL HARD COSTS $407,987
Projected annual energy savings: $50,000
Building envelope• Bad window balances, poor caulking -
> draft
• Regular complains about pest, rodents, etc…
- Replace windows $76,600
- Building air sealing $15,000
Lighting/Appliances• Lights are on 24/7
• Low efficiency refrigerators and washing machines
- More efficient lighting with occupancy controls$73,500
- Appliance replacement with Energy Star
$17,000
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Tax CreditsFederal, State and City
RebatesUtilities, NYSERDA
Loans and MortgagesPrivate, Government, EnergyStar
Financial Incentives
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Green philosophyPrinciples for improvement
Know your building and have a
plan - Measure, measure, measure!
- Things can break, be prepared.
- Do what’s effective, big or small.Grab the low hanging fruit
- Simple actions can have outsized impacts
- Efficiency first
- Use common sense!
There’s always something more to learn at
www.greenhomenyc.org
Thank you
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Follow up packet- Immediate Actions
- Incentives Sheet
- Greener Greater Buildings
- Further resources, with links