We may receive a commission on purchases made from links. Solar power is a sustainable energy source that has many uses in both homes and gardens, including self-watering solutions for your garden.

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 – ...

In the early 198os, my dad installed a solar thermal panel on our roof in Florida. For a 5-year-old, the big black square looked like a portal into the future. The device, essentially a glass box with ...