Energy explained: Videos and infographics

Mae’r dudalen yma ar gael yn Gymraeg.

What is the prepayment price cap?


More video guides

Click the arrows on the video to expand to full screen.

What's the cost of energy?

The average bill for a dual fuel customer with typical energy use is around £1,165. How the costs break down to supply you with energy.

Networks: How is energy transported?

It's a super highway of pipes and cables long enough to take you to the moon and back. How it fits together and how we control its cost to you.

What keeps the lights on?

Serving over 29 million electricity customers, our energy system is one of the most reliable in the world. How the power is kept flowing.

Who do I contact to complain?

Who to contact if you want to dispute a bill or if you’re not happy with your supplier's service. What to do if things go wrong.