A 3kW solar system can technically power a home but only a very small or energy-efficient one. (In other words, don’t expect a 3kW solar system to power an average American home’s lights ...

Whatever the case, the sun’s free energy is available for anyone who puts a small amount of effort into harnessing it, whether or not your home already uses a solar PV system for electricity.

A US-Chinese research group has developed a proposal for a hybrid space heating solution in small homes based on photovoltaic-thermal (PVT) modules, a heat pump, a backup electric boiler, and ...

Though the total number remains small, according to estimates from the Interstate Renewable Energy Council, 186,000 U.S. homes had solar electric systems at the end of last year.

Yet the couple opted to spend $36,000 for a home solar system consisting of 26 solar panels, freshly installed on the roof this month, and a smart battery—about the size of a small refrigerator ...