Energy Bills and Switching Suppliers UK 2026 — Complete Guide

Energy Price Cap January 2027 — Forecast and What It Means for Bills

What the Ofgem energy price cap could look like in January 2027, how it affects your gas and electricity bills, tips to reduce your energy costs, and whether you should fix.

If you are comparing tariffs, switching options, and bill-control tactics, start with the Energy Bills and Switching Hub for the full decision framework.

The Ofgem energy price cap determines how much the vast majority of UK households pay for gas and electricity. Here is what we expect for the January 2027 cap and how to prepare.

Read more: See our Energy Grants guide for a complete overview of this topic.

What Is the Energy Price Cap?

DetailInformation
Set byOfgem (Office of Gas and Electricity Markets)
Review frequencyEvery 3 months (quarterly)
Quarter datesJanuary, April, July, October
What it capsMaximum unit rates for gas and electricity, and maximum standing charges
What it doesn’t capYour total bill — you still pay for what you use
Who it applies toCustomers on default/variable tariffs (about 75% of households)
Fixed tariffsNot covered by the cap — you pay the rate agreed in your fix
Prepayment metersSeparate but similar cap level

Price Cap History

QuarterAnnual figure (typical dual-fuel household)
Q1 2023 (Jan–Mar)£4,279 (Government capped at £2,500 via EPG)
Q2 2023 (Apr–Jun)£3,280 (Government capped at £2,500 via EPG)
Q3 2023 (Jul–Sep)£2,074
Q4 2023 (Oct–Dec)£1,834
Q1 2024 (Jan–Mar)£1,928
Q2 2024 (Apr–Jun)£1,568
Q3 2024 (Jul–Sep)£1,717
Q4 2024 (Oct–Dec)£1,717
Q1 2025 (Jan–Mar)£1,738
Q2 2025 (Apr–Jun)£1,849
Q3 2025 (Jul–Sep)£1,762
Q4 2025 (Oct–Dec)Check Ofgem for latest
Q1 2026 (Jan–Mar)Check Ofgem for latest

January 2027 Price Cap Forecast

ElementForecast range
Overall annual figure£1,700–£1,900 (typical dual-fuel, direct debit)
Electricity unit rate24p–26p per kWh
Gas unit rate6p–7p per kWh
Electricity standing charge55p–65p per day
Gas standing charge30p–35p per day
Announcement dateExpected late November 2026

These are estimates based on wholesale market forward prices in early 2026. The actual cap depends on wholesale costs closer to the announcement.

What Drives the Cap Level?

FactorImpact
Wholesale gas pricesThe biggest factor — UK electricity prices are heavily linked to gas prices
Wholesale electricity pricesDirectly affects the electricity unit rate
Network costsMaintaining the gas and electricity grid — typically rises with inflation
Policy costsGreen levies, supplier obligations, warm home discount scheme
Supplier operating costsStaffing, IT, customer service
Supplier marginOfgem allows a small profit margin per customer
Bad debtCost of customer non-payment — higher in cost-of-living pressures

What Does the Cap Mean for Your Bill?

The “typical” household figure is based on Ofgem’s assumed average consumption:

FuelTypical annual consumption
Electricity2,700 kWh per year
Gas11,500 kWh per year

Your actual bill will differ:

Household typeLikely annual bill at £1,800 cap
1-bed flat, 1 person£1,100–£1,400
2-bed house, 2 people£1,500–£1,800
3-bed semi, family of 4£1,800–£2,200
4-bed detached, family of 5£2,200–£2,800
Electricity only (no gas)£700–£1,000
All-electric with heat pump£900–£1,400

Should You Fix or Stay on the Variable Cap?

ScenarioRecommendation
Fixed deals available below forecast capFix — you lock in a lower rate
Fixed deals higher than current capStay on variable — benefit if prices fall
You want cost certaintyFix — your rate won’t change for the fix term
You want flexibilityVariable — you can switch anytime without exit fees
You think prices will rise significantlyFix now before rates go up
You think prices will fallStay on variable — the cap will drop to reflect lower wholesale costs

Current Best Fixed Deals vs Cap

Check comparison sites for the latest rates — the gap between fixed deals and the cap changes constantly:

Where to compareWebsite
Ofgem-accredited comparisonsUswitch, MoneySuperMarket, Compare the Market
Energy Helplineenergyhelpline.com
Citizens Advice price comparisoncitizensadvice.org.uk/consumer/energy

Tip: A fixed deal 5%–10% below the forecast cap is generally worth taking. A fix more than 10% above the current cap is usually not worth it unless you believe prices will rise significantly.

How to Reduce Your Energy Bills

Quick Wins (No Cost)

ActionAnnual saving
Turn thermostat down 1°C£80–£130
Reduce heating on time by 30 minutes£40–£60
Turn off standby appliances£50–£70
Only boil the water you need£15–£25
Wash clothes at 30°C£20–£30
Dry clothes outside instead of tumble dryer£50–£70
Use lids on saucepans£10–£15
Close curtains at dusk£10–£20
Switch off lights in empty rooms£15–£25

Low-Cost Improvements

ActionCostAnnual saving
LED bulbs throughout£20–£40£30–£50
Draught excluders on doors and windows£10–£50£30–£60
Reflective radiator panels£15–£30£20–£40
Hot water cylinder jacket£15–£20£30–£50
Smart thermostat£150–£250£75–£150
Thermostatic radiator valves (TRVs)£10–£30 each£50–£100

Bigger Investments

ActionCostAnnual savingPayback
Loft insulation (270mm)£300–£600 (or free via ECO)£150–£3001–4 years
Cavity wall insulation£500–£2,000 (or free via ECO)£100–£3002–6 years
Double/triple glazing£4,000–£8,000£50–£100Very long
Solar panels (4kW)£5,000–£8,000£300–£6008–15 years
Air source heat pump£8,000–£18,000 (grants available)Depends on current system10–20 years

Government Help With Energy Bills

SchemeAmountEligibility
Warm Home Discount£150 off electricity billPension Credit Guarantee or qualifying benefits
Winter Fuel Payment£100–£300Pensioners receiving qualifying benefits
Cold Weather Payment£25 per 7-day cold spellOn Pension Credit or qualifying benefits
ECO4 schemeFree or subsidised insulationLow-income households, qualifying benefits
Boiler Upgrade Scheme (BUS)£5,000 (heat pump) or £5,000 (biomass)Replacing fossil fuel heating in England/Wales

See our energy grants and schemes guide for full details.

Quarterly Cap Calendar 2027

QuarterPeriodAnnouncement (expected)
Q1 2027January–MarchLate November 2026
Q2 2027April–JuneLate February 2027
Q3 2027July–SeptemberLate May 2027
Q4 2027October–DecemberLate August 2027

Sources

  1. Ofgem — Energy price cap