The funds can pay for anything from making homes more energy efficient, to providing advice that helps consumers keep on top of their bills.
Energy Saving Trust distributes payments to charities from energy companies who have breached rules.
If you're a charity and want to find out more about the application process, our guide will provide the information you need.
A new round totalling £300k is currently open for applications. The projects receiving grants in the third round of funding have also been announced.