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Davis’ advice to builders interested in using renewable energy is to know where you are using power before trying to produce power. “There is no silver bullet for making renewables work,” he says. “You can’t just add solar panels and be off the grid. You have to look at the complete picture, including having a tight envelope, an energy monitor and knowing the [variable] energy rates available. You can spec smaller solar and a smaller geothermal heat pump and make the house package work [financially].” GB


The Savannah iHouse at Green Bridge Farm is one of the first to have a smart meter installed and take advantage of Georgia Power’s Plug in Vehicle-Time of Use Rate, which allows an electric car to be charged at night for only 1 cent per kWH.


 


JUDGES’ COMMENTS
“This is stylish and well thought out, with good specs. Modular offers a wide range of price points for low-income to people with means. Replication and mass production is a strong point, with some variation to make it personal. And it can fit in rural as well as urban settings.”


PRODUCTS
Structure — Clayton Homes (modular)
Automotive — AeroVironment
Countertops — Corian
Decks — Trex
Flooring — Shaw (bamboo)
Home controls — Powerhouse Dynamics “eMonitor”
HVAC — Bosch (geothermal)
Insulation — Johns Manville
Plumbing — Rheem, Marathon
Roof — standing seam metal
Ventilation — UltimateAire (energy recovery ventilator
Solar Panels — Sun Edison (3kW)
Windows — Andersen (low-E)


www.greenbuildermag.com 12.2011 55

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