Solar water heaters can lower energy bills and reduce emissions, but they're not right for every home. Here's what to know before deciding if one makes sense.

"Electric underfloor heating runs at close to 100%. That sounds impressive, and is better than a modern gas or oil boiler (typically 89%) but the problem is that, unless you’re buying on a time-of-use ...

Space heaters typically hit your wallet the hardest, but Dreo says its new space heaters may be the exception. The company ...

Is space-based solar power a costly, risky pipe dream? Or is it a viable way to combat climate change? Although beaming solar power from space to Earth could ultimately involve transmitting gigawatts, ...