here we discuss all aspects of solar energy. We distinguish between two major types in our subforums: Solar Electricity (Photovoltaics) and Solar Thermal (which includes solar hot water systems and solar concentrators).

the need for thermal energy in much of the world to keep the biodigesters and plant growing systems going. In this board we discuss how to get that thermal energy -- from greenhouses to geothermal and a whole lot more! (Note, however, that discussions of SOLAR thermal heating go on in our SOLAR forum!)