HERS Index Alachua County Energy Conservation Strategies Commission November 19, 2007.
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Transcript of HERS Index Alachua County Energy Conservation Strategies Commission November 19, 2007.
HERS Index
Alachua County
Energy Conservation Strategies Commission
November 19, 2007
Say What ?
The Gator’s had a good game.
My kid did well at school.
My home is energy efficient.
What do these statements have in common?
Real Numbers !!!
None have any meaning without being quantified – we need a clear and consistent method of communicating results
Gators won the game 59-17 My kid got a 1540 on her SAT My home has a HERS Index of 68
HERS Index/E-Scale
We consider a cars relative energy efficiency with MPG – The higher the number, the more fuel efficient.
We can consider a homes relative energy efficiency with the E-Scale ……… The lower the number, the more fuel efficient the home.
The E-scale
Each point represents a 1% difference in a homes current energy efficiency
A home with a HERS Index of 75 will be twice as efficient as a home with a HERS Index of 150
Important Benchmarks
A Home with a HERS Index of Zero produces as much energy per year as it uses. (ZEH)
To meet minimum code the HERS Index must be 100 or less
To meet minimum Energy Star the HERS Index must be 85 or less
Compare
Objective - create High Performance Homes that are:
Healthy Safe Comfortable Durable – disaster resistant Affordable – cost of ownership Energy/resource efficient
Using an integrated systems approach
International Builders’ 2008 Show Remarks by Secretary Bodman
It makes imminent sense to have full transparency and disclosure where home energy performance is concerned – they are easily the largest energy intensive investment most people will ever make. Just as we know how appliances and cars use energy, we can now begin to see the energy use patterns of our homes over their lifecycle.
The ultimate goal is to have all new homes achieve a zero rating– making them net-zero energy homes, producing at least as much energy as they consume. This EnergySmart Home Scale or E-Scale label, simply put, is the home buyer’s equivalent of the fuel efficiency sticker that appears in the window of every new car.
Leadership
"Our country cannot create a sustainable energy and climate future through incrementalism," said Kateri Callahan, President of the Alliance to Save Energy.” "We
need bold action from our government”
11/18/2007
Leadership
Leadership is not defined by the promises made
But by the promises kept
Thanks