Energy · Updated 30 October 2026
Gas and electricity. Every supplier, one yardstick.
In short
Energy suppliers rarely run discount codes: the saving is in the tariff. Ofgem's price cap works out at £1,723 a year for a typical home paying by Direct Debit until 31 December 2026, and caps the rates, not the bill. The energy comparison costs every tariff Octopus Energy, E.ON Next, EDF and Good Energy publish for your home against it.
The price cap now
Its rates, on average
Electricity 26.32p per kWh, 54.83p a dayGas 7.97p per kWh, 29.68p a dayAcross Great Britain, VAT included.
Some of the suppliers I cover
Featured in Energy
What would your home pay?
The full comparisonA postcode places your home in its price-cap region; I cost every tariff I hold for a medium home there, cheapest first, against staying on the cap. “Change” sets your own use, fuel and way of paying.
Pricing a medium home: Direct Debit, gas and electricity. Ofgem's figures for homes that use less than most (1,600 kWh of electricity, 6,000 kWh of gas), about the middle and more. Your bill or your supplier's app gives a truer answer.
Which suppliers' tariffs do I compare?
Those whose tariffs are public, and they're costed in the comparison. The rest don't publish theirs in a form I can use, so the price cap stands in: it's the most any of them can charge on a standard variable tariff.
Tariffs I compare
Every tariff each one publishes, costed for your home over the next 12 months with the price changes already announced, its exit fees beside it.
Prices they don't publish
A quote from any of them can be set against the cap for your region and the cheapest tariff the comparison finds.
How does the price cap differ by region?
The cap in fullOn the cap, a medium home paying by Direct Debit pays least in East Midlands, £1,672 a year, and most in Merseyside and North Wales, £1,804. Running each region's network costs a different amount, so the cap differs too. Here are all 14, cheapest first.
Where you live moves a medium home's bill by up to £132 a year on the cap, from East Midlands to Merseyside and North Wales. Open a region to see its rates.
Compare tariffs in East MidlandsThe cap's rates in East Midlands, VAT included Per kWhWhat each kWh you use costs, in pence. Use more and you pay more. A dayA fixed charge for each day you're connected, however little you use. You pay it even on a day you use nothing. Electricity 25.36p 51.45p Gas 7.82p 29.41p
Compare tariffs in North West EnglandThe cap's rates in North West England, VAT included Per kWhWhat each kWh you use costs, in pence. Use more and you pay more. A dayA fixed charge for each day you're connected, however little you use. You pay it even on a day you use nothing. Electricity 26.49p 45.68p Gas 7.86p 29.81p
Compare tariffs in LondonThe cap's rates in London, VAT included Per kWhWhat each kWh you use costs, in pence. Use more and you pay more. A dayA fixed charge for each day you're connected, however little you use. You pay it even on a day you use nothing. Electricity 26.60p 42.92p Gas 8.15p 30.20p
Compare tariffs in West MidlandsThe cap's rates in West Midlands, VAT included Per kWhWhat each kWh you use costs, in pence. Use more and you pay more. A dayA fixed charge for each day you're connected, however little you use. You pay it even on a day you use nothing. Electricity 25.60p 57.23p Gas 7.90p 29.71p
Compare tariffs in Eastern EnglandThe cap's rates in Eastern England, VAT included Per kWhWhat each kWh you use costs, in pence. Use more and you pay more. A dayA fixed charge for each day you're connected, however little you use. You pay it even on a day you use nothing. Electricity 26.61p 51.84p Gas 7.91p 29.34p
Compare tariffs in North ScotlandThe cap's rates in North Scotland, VAT included Per kWhWhat each kWh you use costs, in pence. Use more and you pay more. A dayA fixed charge for each day you're connected, however little you use. You pay it even on a day you use nothing. Electricity 26.35p 55.14p Gas 7.87p 29.87p
Compare tariffs in Southern EnglandThe cap's rates in Southern England, VAT included Per kWhWhat each kWh you use costs, in pence. Use more and you pay more. A dayA fixed charge for each day you're connected, however little you use. You pay it even on a day you use nothing. Electricity 26.47p 47.81p Gas 8.17p 29.16p
Compare tariffs in North East EnglandThe cap's rates in North East England, VAT included Per kWhWhat each kWh you use costs, in pence. Use more and you pay more. A dayA fixed charge for each day you're connected, however little you use. You pay it even on a day you use nothing. Electricity 25.46p 61.58p Gas 7.92p 29.79p
Compare tariffs in YorkshireThe cap's rates in Yorkshire, VAT included Per kWhWhat each kWh you use costs, in pence. Use more and you pay more. A dayA fixed charge for each day you're connected, however little you use. You pay it even on a day you use nothing. Electricity 25.60p 61.67p Gas 7.90p 29.77p
Compare tariffs in South ScotlandThe cap's rates in South Scotland, VAT included Per kWhWhat each kWh you use costs, in pence. Use more and you pay more. A dayA fixed charge for each day you're connected, however little you use. You pay it even on a day you use nothing. Electricity 26.11p 61.41p Gas 7.87p 29.89p
Compare tariffs in South East EnglandThe cap's rates in South East England, VAT included Per kWhWhat each kWh you use costs, in pence. Use more and you pay more. A dayA fixed charge for each day you're connected, however little you use. You pay it even on a day you use nothing. Electricity 26.88p 52.32p Gas 8.05p 29.26p
Compare tariffs in South WalesThe cap's rates in South Wales, VAT included Per kWhWhat each kWh you use costs, in pence. Use more and you pay more. A dayA fixed charge for each day you're connected, however little you use. You pay it even on a day you use nothing. Electricity 26.55p 55.41p Gas 8.09p 29.96p
Compare tariffs in South West EnglandThe cap's rates in South West England, VAT included Per kWhWhat each kWh you use costs, in pence. Use more and you pay more. A dayA fixed charge for each day you're connected, however little you use. You pay it even on a day you use nothing. Electricity 26.58p 55.58p Gas 8.12p 29.31p
Compare tariffs in Merseyside and North WalesThe cap's rates in Merseyside and North Wales, VAT included Per kWhWhat each kWh you use costs, in pence. Use more and you pay more. A dayA fixed charge for each day you're connected, however little you use. You pay it even on a day you use nothing. Electricity 27.86p 67.66p Gas 7.91p 30.08p
A medium home on the cap with a single-rate meter, VAT includedOfgem's middle home, using 2,500 kWh of electricity and 9,500 kWh of gas a year. It's how the cap is put in pounds; your own use changes the figure.. Your own use changes the figure. Economy 7's rates are in the cap in every region.
What codes and deals are live in Energy?
Codes open on their store's page, where you can copy them and say whether they worked.
Reveal code Reveal code
I may earn a commission when you shop through these offers, at no cost to you. How that works.
More in Energy
Read before you shop
Energy questions
Do energy suppliers have discount codes?
Rarely: the saving is in the tariff you choose. Vouchernaut's energy comparison costs every tariff I hold for your home over the next 12 months against Ofgem's price cap, cheapest first.
What is the energy price cap?
Ofgem's limit on the unit rates and standing charges a supplier can charge on a standard variable tariff. From 1 October 2026 to 31 December 2026 it works out at £1,723 a year for a typical home paying by Direct Debit. It caps the rates, not the bill: use more and you pay more.
Which suppliers' tariffs does Vouchernaut compare?
Every tariff Octopus Energy, E.ON Next, EDF and Good Energy publish, with the brands they supply (EnergyCoop, London Power and Sainsbury's Energy), costed for your home over the next 12 months. The other suppliers don't publish theirs in a form I can use, so the price cap stands in for them.
Why is the price cap different in each region?
Running each region's network costs a different amount, so the cap's rates differ by region. For a medium home paying by Direct Debit, East Midlands is cheapest at £1,672 a year and Merseyside and North Wales dearest at £1,804.
How do I compare energy tariffs for my home?
Put your postcode into Vouchernaut's energy comparison. It finds your price-cap region and whether there's mains gas, then costs every tariff I hold for your home over the next 12 months, cheapest first, against staying on the cap.