With over 10 years’ experience writing about consumer affairs, Sarah leads on energy content at Which?, helping customers navigate the market and exposing poor practice. Solar water heating systems – ...

As the co-owner of a California property that has never been tied to the electric grid, I can attest to the warm feeling of self-sufficiency that comes with a functioning solar power system. We’ve ...

You know how it feels when you turn on the heater, but it seems like it takes forever to warm up the room? Or maybe you've got an old heater that just doesn’t cut it anymore. That’s where new ...