2025 Q1 cap
£1,738
Typical dual-fuel
Ofgem Cap 14 Regions UK only 2025 Q1 data
Ofgem Price Cap · Regional Variations · Bill Calculator
UK Energy Bill Calculator & Ofgem Price Cap Explainer — 2025
How much will your UK energy bill cost in 2025? PlainEnergyBills lays out the Ofgem default-tariff cap, regional unit-cost differences across the 14 distribution networks, and the structural drivers behind the 96% standing-charge increase since 2021 — all sourced from primary Ofgem and DESNZ publications.
Standing charge
53p/day
2024 average
Distribution regions
14
Great Britain
Highest-to-lowest gap
£200+
London vs N. Scotland
Wholesale energy share of bill 57.5%
Wholesale is the largest single component
Network + supplier cost share 32.5%
Network 22%, supplier opex 10%
Standing charge increase 2021-2024 96.0%
96% rise reflects SoLR cost recovery
Ofgem default-tariff price cap evolution 2021-2025
Quarterly cap announcements, typical 3,100 kWh electricity + 12,000 kWh gas household
Read more
Understanding the Ofgem Price Cap
How the quarterly default-tariff cap is calculated.
Unit Cost vs Standing Charge
Per-kWh rate plus daily standing charge.
Switching Suppliers
How switching economics changed since 2022.
Regional Differences
14 distribution network regions.
Standing Charge Controversy
96% increase from 2021-2024.
Editorial research & rankings
Ofgem cap quarterly evolution
Full trajectory 2021-2025: £1,138 → £3,549 peak → £1,738.
Regional cost-gap analysis
Why £200+ separates London from North Scotland.
Standing charge 96% rise
SoLR cost recovery 2021-2024 — structural shift.
Most expensive UK regions
North Scotland tops typical-bill ranking 2025 Q1.
Cheapest UK regions
London + South East lead the low end.
Standing charge trajectory
Absolute-pound ranking of the post-crisis rise.
UK energy bills in one paragraph
The Ofgem default tariff cap controls the maximum unit rate and standing charge for standard variable tariffs covering approximately 27 million UK households. The cap is set quarterly, varies by region across 14 distribution networks, and has fluctuated from £1,138 (2021 Q1) to £3,549 (2022 Q4 record) to £1,738 (2025 Q1). Fixed-rate deals from suppliers can sit above or below the prevailing cap; switching to a fixed deal is the primary way to escape quarterly volatility. Daily standing charges have risen 96% from 2021 to 2024 — a structural change that has hit low-consumption households disproportionately and prompted a 2024 Ofgem consultation on reform.
For most UK households, three levers move the energy bill: switching to a lower-priced tariff, reducing consumption through behaviour and appliance change, and capital efficiency upgrades (insulation, heat pumps, solar). Our guides cover each lever in detail; our trends page documents the underlying price cap evolution.
Frequently Asked Questions
What is the current Ofgem energy price cap?
The Ofgem default tariff cap for 2025 Q1 is approximately £1,738 for a typical dual-fuel household. The cap is updated quarterly. Visit our trends page for the historical series and the latest published level.
How is the price cap calculated?
Ofgem sets the cap quarterly based on wholesale energy costs (50-65% of bill), network costs (20-25%), and supplier operating costs plus margin (10-15%). Wholesale costs are derived from forward gas and electricity market prices over a defined lookback window.
Does the price cap apply to fixed-rate deals?
No. The cap applies only to standard variable tariffs (SVTs). Fixed-rate deals can be priced above or below the prevailing cap based on supplier choice. As of 2025, fixed deals typically sit 0-10% below the cap.
Why are standing charges so high?
Daily electricity standing charges rose 96% from 2021 to 2024, driven by Supplier-of-Last-Resort cost recovery from the 2021-22 supplier failures plus unpaid-debt recovery from the 2022 winter. Ofgem is consulting on reform; outcome expected late 2025.
Why does my region cost more than London?
Distribution network costs vary by region. Sparsely-populated regions (North Scotland, Merseyside) have higher per-customer infrastructure costs than densely-populated regions (London, South East). The cap is set separately for each of the 14 distribution regions.
