Combination Hot Water and Electricity Controls

Direct (top) and indirect (bottom) automatic solar hot water collector systems. 

Post-Oil Energy Technology After the Age of Fossil Fuels 

Photovoltaic Ten Mitsubishi PV-MF 170EB3,170 W each at 24.6 Vmp, wired in series for 1.700 w total at 246 Vmp 

Example of PV solar collectors that supply the home with electricity and by being connected to the utility grid, allows the kWh meter to run backwards when more electricity is generated than needed. (Reprinted with permission. Copyright 2007 by Home Power, Inc. http //www. homepower.com.) 

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