A solar-powered air conditioner doesn't do one much good during a Vermont winter, but rather than cranking on the heater (or huddling under the heated Hello Kitty mat) just to heat things up in a ...

Learn how to make solar water heater panels by building this thermosiphon outdoor shower system that can even water your greenhouse. A few years back, a friend donated a Sunvelope solar hot water ...

It took a while to decode the email I received from Carroll Hampleman (you can see why below), but his home made water heater is worth the bother. Mirrors are arranged to reflect and concentrate the ...

Q: Based on our water bills, my family uses lots of water and much of it is probably hot water. Is there a simple solar hot water system design that I could build myself? A: Heating water can account ...

Do you enjoy coming home to a warm home in the dead of winter? Do you leave your furnace running in cold weather even if no one’s home? If you want to keep the house warm for when you return later in ...

Alex Davies is a technology journalist and the author of "Driven," an upcoming book about the self-driving car industry. Well it's that time of the year again here in Southern California time to fill ...

While some of the highest technology in the world is being brought to bear on the problem of saving energy, here’s a guy who painted 50 soda cans black, drilled holes in them, stacked them up inside a ...

We recently featured one way to heat your house with the sun, but DIYer Daniel Strohl has spent three years perfecting his homemade solar garage heater, made out of a wooden box, some vacuum parts, ...

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 ...

Plug-in solar has remained in the shadows because of a lack of safety standards and often costly requirements imposed by ...

The days are getting longer, and I’m thinking I ought to make use of those extra rays to help the environment. The big decision seems to be between a solar electric system and a solar water heater.