Geothermal systems are not as popular as solar thermal systems but they are an effective green energy option widely used in the USA and Canada these days. These ground source heat pumps tap into the free solar energy just like their solar counterparts, but indirectly by drawing what has already been absorbed in the earth’s…
Month: May 2018
Solar Air Collectors:Know Their Ultimate Advantages and Applications
Solar air heating systems can inexpensively supply a major part of heat demand in a home or building using passive solar in combination with a solar powered PV fan. They draw in fresh air from outside and circulate it through a labyrinth of black aluminum solar air heating panels with a special selective coating to absorb…