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FORTUNATO HOUSE RENOVATION
CASE STUDY NO. 2
Renewable On-Site Energy Supply
The on-site solar PV system consists of twenty-six 250-watt panels made by SolarWorld, a U.S.- based company, for a total power production rating of 6.5kW (DC).
Even for a modestly-sized house, this is a not a large system for a house that is performing at ZNE, especially with two electric cars adding to the overall electric load. In fact, before the ac- quisition of the electric vehicles, the house was signi cantly net positive in its performance. It is a testament to the high energy ef ciency of the design and operation of the house that the PV system can be so small and the performance is still ZNE.
(Below) Rooftop solar PV ar- rays, with clerestory windows beyond that are at the top of central stairwell space.
Zero Net Energy Case Study Homes: Volume 1
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