How the Ofgem energy price cap works, what it means for your bills from October 2026, and how to reduce your energy costs. UK guide.
·4 min read
The Ofgem energy price cap determines what you pay for gas and electricity on a default or variable tariff. Here is how it works, what to expect from October 2026, and what you can do about it.
How the Price Cap Works
Feature
Details
What it caps
Maximum unit rates (per kWh) and daily standing charges
Who it applies to
Customers on default, variable, or deemed tariffs
Who it does not apply to
Fixed-rate tariff customers (until their fix ends)
How often it changes
Every quarter (January, April, July, October)
Who sets it
Ofgem (the energy regulator)
Based on
Wholesale energy prices, network costs, supplier operating costs, policy costs
What the “Typical” Household Means
Metric
Amount
Typical annual electricity use
2,700 kWh
Typical annual gas use
11,500 kWh
Fuel type
Dual fuel (gas and electricity)
Payment method
Direct debit
The price cap figure (e.g. “£1,800 per year”) is for this typical household. Your bill will differ based on your actual usage.
Recent Price Cap History
Quarter
Annual cap (typical household)
Gas unit rate
Electricity unit rate
Gas standing charge
Electricity standing charge
Jan–Mar 2025
£1,738
6.76p/kWh
24.50p/kWh
32.20p/day
61.64p/day
Apr–Jun 2025
~£1,720
~6.60p/kWh
~24.40p/kWh
~32p/day
~61p/day
Jul–Sep 2025
~£1,700
~6.50p/kWh
~24.30p/kWh
~32p/day
~61p/day
Oct–Dec 2025
~£1,750
~6.70p/kWh
~24.50p/kWh
~32p/day
~61p/day
Jan–Mar 2026
~£1,780
~6.80p/kWh
~24.60p/kWh
~32p/day
~61p/day
Apr–Jun 2026
~£1,760
~6.70p/kWh
~24.50p/kWh
~32p/day
~61p/day
Jul–Sep 2026
To be announced
TBA
TBA
TBA
TBA
Oct–Dec 2026
To be announced
TBA
TBA
TBA
TBA
Figures shown are illustrative. Check Ofgem’s website for confirmed rates closer to each quarter.
What the October 2026 Cap Might Be
Factor
Direction
Wholesale gas prices
Volatile — depends on global supply and demand
Wholesale electricity prices
Linked to gas (gas sets the marginal price)
Network charges
Gradually increasing due to infrastructure investment
Policy costs (renewables obligations, WHD, etc.)
Relatively stable
Supplier margin
Small (~2% of bill)
Market forecasts suggest the cap will remain in the £1,700–£1,900 range for October 2026, but wholesale price movement could push it higher or lower.
Your Options
Stay on the Price Cap (Default Tariff)
Pros
Cons
Adjusts quarterly — benefit if prices fall
Exposed to increases every quarter
No exit fees
No price certainty
Protected by Ofgem regulation
Unit rates may be higher than best fixed deals
Fix Your Energy Tariff
Pros
Cons
Price certainty for 12–24 months
May miss out if prices fall
Can lock in below-cap rates when available
May have exit fees (check terms)
Peace of mind
Must actively search and switch
When to Fix
Situation
Recommendation
Fixed deal below current cap
Consider fixing — you are getting a discount
Fixed deal above current cap
Stay on cap for now and review next quarter
You want certainty and budget predictability
Fix
You believe prices will fall further
Stay on cap (variable)
How to Reduce Your Energy Bill Regardless of the Cap