Well-Grounded Solar

Siegenthaler, John
February 2011
PM Engineer;Feb2011, Vol. 17 Issue 2, p14
The article discusses solar water heating and geothermal heat pumps as ways of capturing solar energy. The author reports that both enjoy a 30% income tax credit from the U.S. government, as well as many other rebates and credits at the state level. Charts are presented that show both solar thermal and geothermal heat pump subsystems are combined into an overall system for space heating, space cooling, and domestic water heating. Heating and cooling modes, solar assist, and different possibilities are also discussed.


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