Design DriversSimple Is SageLocation Impacts NumbersRoofing Material MattersThe roofs of many houses are too small, or at least don''t have enough uninterrupted surface, to hold an array sized to supply 100% of the electricity the home needs. According to the team at ReVision Energy, a renewable-energy contractor that serves parts of New England, it takes about 75 sq. ft. of roof spacSee more on finehomebuilding energy.gov[PDF]
Solar Photovoltaic: SPECIFICATION, CHECKLIST AND GUIDE
To assist in evaluating each home, EPA has developed an online Renewable Energy Ready Home Solar Site Assessment Tool (RERH SSAT), which compares the solar resource
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