Solar PV customers understand that they can generate cheap electricity with rooftop solar. That electricity is good for lighting, appliances, air conditioning and other household uses. But homeowners often ask about heating their homes with solar. The answer used to be installing a solar thermal system with rooftop solar panels generating hot water (stored in a tank) or hot air (stored in a bed of rocks or other thermal mass). But now there is another option: heat pumps combined with rooftop PV.
via Renewable Energy News – RenewableEnergyWorld.com http://ift.tt/1vU881I