What is the power worth cap and the way will an increase have an effect on your payments

  • The price cap set by regulator Ofgem caps how much homes pay for power
  • Price cap rises mean millions pay more for gas and electricity from October

Changes to the Ofgem energy price cap affect the gas and electricity bills paid by millions of homeowners.

Energy regulator Ofgem’s average price-capped bill, currently £1,568 a year, has risen to £1,717 from 1 October. 

In practice, this means a household using the typical amount of energy will see an increase in in bills of around £149 a year – at least until Ofgem next updates its price cap in January 2025.

This is everything you need to know about the Ofgem price cap and how it affects energy bills.

What is the Ofgem price cap?

The price cap is a limit, set by Ofgem, which caps the maximum amount an energy firm can charge for the units of gas and electricity consumers use.

It also limits how much households pay in standing charges – the daily fees paid regardless of how much energy is used. 

The price cap was introduced in January 2019 to prevent energy firms overcharging customers on variable-rate tariffs.

Because cheap fixed-rate deals have almost disappeared, almost all homes are now on tariffs regulated by the Ofgem price cap. 

How does the price cap affect my energy bills? 

This depends on what sort of tariff you have, your meter and how much energy you use.

From 1 October, the average household on a variable-rate tariff paying by direct debit will pay £1,717 a year for gas and electricity due to the price cap.

For those with prepayment meters, average price-capped yearly energy bills will rise by 10 per cent to £1,669 a year.

Meanwhile, those paying when being sent a bill will pay £1,829 a year, an increase of 10 per cent.

But exactly how much you pay will vary depending on your energy use. This is because the price cap only limits the maximum you can be charged for the units of gas or electricity you consume. The more units you use, the more you pay, and vice versa.

How does the price cap affect standing charges?

The Ofgem price cap also regulates standing charges. 

The level of the standing charge varies depending on factors such as where you live in the country.

Left standing: Households face high standing charges payable regardless of energy use

Electricity standing charges will rise from 60.12p a day to 60.99p. For gas, the increase is from 31.41p to 31.66p. 

Where are all the cheap energy deals? 

Historically, most households have locked in to fixed energy deals. Variable-rate deals have been what customers fell onto once these cheaper fixed-rate deals expired.

But that all changed in late 2021, when energy firms stopped offering cheap fixed-rate deals.

They did this because of the energy price crisis, when wholesale prices of gas began to soar.

Because most consumers were on fixed-rate tariffs, energy firms were forced to buy power for much less than they could sell it for.

As a result, dozens of energy firms collapsed and the rest waited for customers to end up on more expensive variable-rate deals.

Most of the country is now on a variable-rate energy tariff, with prices set by the Ofgem price cap.

Almost all energy firm tariffs charge customers the maximum allowed under this cap. 

Energy firms have slowly started to bring back fixed-rate deals, but only a few work out cheaper than customers will pay remaining on price-capped rates.

Ofgem has called on consumers to be wary when taking out a fixed-rate deal, for this reason.

What is the future of the price cap?

Ofgem does not normally make predictions about how the price cap will change.

But longer-range predictions are available from analysts at Cornwall Insight, which has predicted all previous price cap movements fairly accurately.

Cornwall Insight thinks that gas and electricity bills will fall by 1 per cent from January 2025, then fall again in Q2 and Q3 of that year.