Think of solar greenhouse heaters as a way to supplement existing heating systems. They're out there, but some assembly may be required.

A solar-powered ‘Galactic Brain’ is supposed to side-step energy constraints new data centers face on Earth.

Heating water is one of the most energy-consuming and costly household tasks. According to the Department of Energy, it makes up roughly 18% of a standard home's monthly energy budget. And if you use ...

Taking a hot shower can literally mean pouring money down the drain. The average American household spends almost $300 pear ...

Researchers in Malaysia designed a photovoltaic-thermal system that can be used in solar drying, space heating, rooftop systems, and off-grid thermal applications. It relies on a double-pass cooling ...