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Updated: Sep 22, 2021, 5:42pm

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UPDATE 3 FEBRUARY 2022: Please note that the UK energy market has undergone significant changes since this page was created last year. You can find out more about recent events via our rolling energy blog, which contains details of movements of the energy price cap and the government’s response.

In short, there are currently no competitive deals available at less than the current price cap of £1,277 a year for average consumption users.

We do not yet know whether there will be deals prices below the price cap which comes into effect on 1 April 2022. This will stand at £1,971 a year.

These figures relate to the cap as it applies to a typical household using an average amount of energy and paying via a dual fuel (gas and electricity) variable rate tariff using direct debit.


If you’re on a fixed-term, fixed-rate energy tariff that ends in September, you need to act quickly to find another competitive deal.

Our data shows that over 150 fixed tariffs come to an end during this month. If tariff-holders do nothing, they will likely be moved by their supplier onto a relatively expensive ‘default’ tariff and start paying more for their energy.

So if you’re not sure when your tariff ends, it’s well worth checking your latest bill or contacting your supplier to find out.

What’s Happening In The UK Energy Market?

There are currently no energy deals priced below standard tariffs, so we have temporarily suspended our switching service.

Top 10 biggest price increases for tariffs expiring by 30 September 2021

RankSupplierTariff nameEnd dateCurrent costSVT costDifference
1E.ONFix 1 Year Exclusive August 202015/09/2021£859.44£1,277.38£417.94 (48.63%)
2E.ONFix Online Exclusive v4608/09/2021£869.64£1,277.38£407.74 (46.89%)
3So EnergySo Banana Essential - Green - Seasonal Payments07/09/2021£870.35£1,275.56£405.21 (46.56%)
4British GasEnergy Plus Home Cover Sep 202130/09/2021£876.98£1,277.38£400.40 (45.66%)
5E.ONFix 1 Year Exclusive September 202030/09/2021£877.23£1,277.38£400.15 (45.61%)
6E.ONFix Online Exclusive v4718/09/2021£883.15£1,277.38£394.23 (44.64%)
7British GasEnergy Plus Home Cover Sep 2021v330/09/2021£891.38£1,277.38£386.00 (43.30%)
8British GasSimply Fixed Energy Sep 202130/09/2021£891.38£1,277.38£386.00 (43.30%)
9British GasEnergy Plus Protection Sep 2021v230/09/2021£900.12£1,277.38£377.26 (41.91%)
10British GasFixed Energy Sep 202130/09/2021£900.12£1,277.38£377.26 (41.91%)
Prices per annum based on dual fuel tariffs for an Ofgem-defined ‘medium user’, paying by monthly direct debit. Note, these may not be available in every region of the UK. Source: Comparison Technologies

Fixed or variable tariff?

Fixed-rate tariffs are usually among the most competitive on the market. Compared to variable rate tariffs, they are often cheaper, and they come with the guarantee that the price per unit of energy you use during the term – usually 12 months, sometimes 24 – will remain the same.

With a variable rate deal, as the name suggests, the rate can go up or down as the supplier dictates, so long as it remains within the price cap set by the energy regulator, Ofgem.

The price cap was introduced by Ofgem, at the behest of the government, precisely because variable rates were so expensive. With the cap currently standing at £1,138 a year for typical households, there are dozens of cheaper fixed tariffs from which to choose, with typical prices as low as £860 a year.

The cap will remain at this amount until the end of September. From 1 October 2021, the cap will then rise by £139 to stand at £1,277, its highest-ever level. This figure will remain in place until the end of March next year.

Ofgem specifically advises consumers on standard variable rate tariffs (SVT) to switch and fix a lower price for their power.

Are you on an SVT energy deal? Use our tool to see what you could have saved compared to if you’d been on the cheapest fixed rate deal at the time.

Energy: Have You Been Overpaying?

Ofgem SVT Default Price Cap

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Price Cap Announcements

There are a number of competitive variable rate deals are currently available. But market-watchers have noted steep increases in wholesale energy prices – and these will feed through to domestic bills. Remember, where fixed tariff prices are locked in for the duration, variable rates can be hiked by the supplier at any time.

Top 10 cheapest energy tariffs

RankSupplier Tariff name Type Cost
1Spark EnergyTili Select Saver - Sept 2021Fixed£1,066.86
2Utility WarehouseDouble GoldVariable£1,081.25
3ScottishPowerGreener Future April 2022 IM2Fixed£1,089.98
4ScottishPowerExclusive Green Fixed Price May 2022 SM1Fixed£1,090.09
5Entice EnergyFlexible Saver v3Variable£1,103.63
6Utility WarehouseGoldVariable£1,109.71
7Affect EnergyAffect Standard TariffVariable£1,125.69
8Co-op EnergyCo-op FlexibleVariable£1,125.69
9Ebico LivingEbico StandardVariable £1,125.69
10Octopus EnergyFlexible OctopusVariable£1,125.69
Cheapest deals based on dual fuel tariffs for an Ofgem-defined ‘medium user’, paying by monthly direct debit. Note, these may not be available in every region of the UK. Source: Comparison Technologies, correct as of 22 September 2021

Exit fees safe zone

The fixed-term nature of fixed tariffs means many of them include exit fees, which are charged if you decide to leave during the term. These are usually set at £30 per fuel, so you’d pay £60 to leave a dual fuel gas and electricity deal ahead of time.

But, under Ofgem rules, you can’t be charged exit fees within 42 days of your tariff coming to an end, so anyone with a fixed tariff ending in September is now comfortably within the grace period where they don’t need to worry about fees.

The actual switching process should take no more than 21 days under Ofgem’s energy supplier licensing regime, so prompt action should ensure you can move over to another fixed tariff before you slip onto an expensive default deal.

You can find out more about switching here.

Frequently Asked Questions (FAQs)

How long does switching take?

Switching should take 21 days, including the statutory 14-day cooling-off period, during which you can change your mind without penalty. Throughout this time, you will have access to your energy supply as normal, and you will be kept updated on the progress of the switch.

Can I switch if I am renting?

Can I switch energy if I owe my current supplier?

When is the best time to switch suppliers?

What’s Happening In The UK Energy Market?

There are currently no energy deals priced below standard tariffs, so we have temporarily suspended our switching service.

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