South rooftop PV solar system is calculated to provide greater annual summer production due to low roof pitch. Two additional flat plate solar collectors provide hot water to occupants with any surplus contributing to space heating needs.
The Wright Construction Company and Dewey + Associates, Architects and Planners, recently teamed up to complete a deep energy face lift to an existing home overlooking the Green, Taconic and Adirondack Mountains from Mount Holly, Vermont. The existing 2,350 S.F. home was enlarged by 930 S.F. to accommodate the owner’s extended family and is now estimated to be a net positive annualized energy home.
With the engineering help of Bonhag Associates of Lebanon, NH, thirty-six net metered Helios 245W photovoltaic solar panels (8,820W total capacity) with 2 Kaco Blueplanet inverters and 64 S.F. of Wagner solar hot water collectors were added to the new standing seam metal roof which provides the owners with all of their calculated annualized needs for power, hot water and space conditioning. The Water Furnace Envision ground water heat pump is run by the site-generated power and makes the balance of hot water whenever it is not generated by the sun. The heat pump will provide extreme summer day low velocity cooling capacity as well as humidity control for added comfort.
Click here to for more information (PDF downlaod): Net Positive Energy
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