A Colorado construction company called Ecofutures Building Inc. produces market competitive net-zero homes, for the sheer cost of 7 to 8% more than a new conventional home in the state.
"The net-zero-energy measures cost 7% to 8% of the total home price. Our clients pay more in mortgage but less in energy so it's cost neutral -- or even cash-flow positive -- to live in a zero-energy home at today's energy prices." - Eric Doub, company president.
The company built what was Colorado's first net-zero home in 2005, and subsequently won the U.S. Department of Energy's "Builders Challenge" in 2008, becoming the first builder to qualify with a score "literally off the scale", a -3 on the Home Energy Scale Rating System.
You can read more at http://www.hgtvpro.com/hpro/green_building/article/0,3142,HPRO_27916_6024003,00.html & http://www.ecofuturesbuilding.com/
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