Since ancient times, people have found ways to use the sun’s heat to stay warm or keep cool. They built homes from clay and other materials that hold heat well, and they placed them in ways that ...

A passive solar-heated home needs no solar panels to heat or cool it. Rather, the energy used to heat and cool a house comes directly from the sun through skylights and windows. Some of that energy is ...

The solar heating system on Nick Glumac's home in Morgan Park may look elaborate, but the idea behind it is simple: It's like putting a coat on your house, he says. "In the winter, what do you do for ...

Photovoltaic-thermal panels and geothermal heat pumps could mostly cover the heating and cooling demand of office buildings, according to new research from Greece. Scientists at Greece's National ...