Fixed energy deal or the price cap?

What the comparison shows

It works out a year of your use on the fixed deal's rates and on today's price cap rates for your region and payment method, and shows the difference. A fixed deal keeps its rates for its whole term. The price cap changes every three months, so whether a fix works out cheaper depends on where the cap goes.

Things to check on a fixed deal

• The unit rates and the standing charges. A low unit rate can come with a high standing charge.
• The exit fee, if you want to leave early, and how long the deal lasts.
• What happens at the end. If you do nothing, you usually move to the supplier's standard variable tariff, which the cap limits.

We give information, not advice, and we do not sell energy deals. Citizens Advice explains how to choose a tariff.

Work out something else

• Energy price cap
  What the cap is now, what it limits and what it means for your bill.
• Energy bill calculator
  A year's gas and electricity at the price cap for your region.
• Energy prices by region
  Unit rates and standing charges for your postcode.