DOE Tour of Zero: Sol Lux Alpha by Off The Grid Design
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Home » DOE Tour of Zero: Sol Lux Alpha by Off The Grid Design
1/9Off the Grid Design built this 7,008-square-foot multifamily project in San Francisco, California, to the high performance criteria of the U.S. Department of Energy Zero Energy Ready Home (ZERH) program.
2/9A solar awning over the rooftop deck helped this builder achieve net zero energy on this five-story apartment building in San Francisco.
3/9Photovoltaic panels make up the roof of this rooftop deck, providing roofing that generates electricity while providing waterproof shading that lets 15% of the light through to brighten the space below.
4/9ENERGY STAR appliances and EPA WaterSense-labeled plumbing fixtures add to energy and water savings.
5/9All of the home’s light fixtures use LED-based light sources.
6/9The entire unit is heated and cooled with a single minisplit heat pump that delivers heating and cooling throughout the home via short ducts.
7/9The builder estimates that each unit should save more than $7,000 in annual energy costs thanks to the efficient design and roof-mounted solar panels.
8/9A triple-filtered energy recovery ventilator provides ducted fresh air throughout the homes.
9/9An extensive battery storage system saves solar-generated power for use during evening peak hours.
“The owners are extremely satisfied to be living in a very healthy, quiet, and technologically advanced ‘nanogrid’ home.”
– John Sarter, Off The Grid Design
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“The owners are extremely satisfied to be living in a very healthy, quiet, and technologically advanced ‘nanogrid’ home that is not only a resource for them but for the entire community in the event of grid outages. The strategy to use Passive House for the building yielded no increased cost for wall construction other than air-sealing and purchasing very airtight but only dual-glazed windows.”
– John Sarter, Off The Grid Design