Passive cooling, like the shade a tree provides, has been around forever. Recently, researchers have been exploring how to turbo charge a passive cooling technique — known as radiative or sky cooling ...

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 ...

• Hot-water usage: Since the more hot water you use the more money you save with a solar heating system, large households will save a lot more by going solar. For example, a family of four will save a ...

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 ...

As a former realtor, general contractor and greenhouse operator, Kristi has touched nearly all aspects of homeownership, from the foundation up. Today, Kristi is a full-time investing and real estate ...

Solar water heaters work by absorbing sunlight in solar collectors and saving the heated water in a storage tank. Both active and passive solar water heaters are available. Active systems are ...

A new study describes a new technology that provides both radiative cooling and solar heating, all is one system and without using electricity or fuel. It could help impoverished communities, reduce ...