If you install an electricity-generating technology from a renewable or low-carbon source such as solar PV or wind turbine, the government's Feed-In Tariff scheme (FIT) could mean you get money from your energy supplier. You can be paid for the electricity you generate, even if you use it yourself, and for any surplus electricity you export to the grid. And of course you'll also save money on your electricity bill, because you'll be using your own electricity.

A typical domestic solar electricity system with an installation size of 3kWp could save around £670 per year