The price cap will rise by £63 in October 2025, the third increase this year. But for homeowners in parts of Northern England and Scotland, the real shock comes in 2026: regional energy price gaps could widen to £150 a year. That is not a rounding error. That is a postcode lottery dressed up as a regulatory adjustment.
Uswitch has mapped the projected regional differences for 2026, as reported by Uswitch. Their analysis shows that households in the North West, Yorkshire, and parts of Scotland could face the highest standing charges and unit rates, while those in London and the South East enjoy lower costs. The gap between the cheapest and most expensive region could exceed £130 on an average dual-fuel bill.
Who pays more, and why
The culprit is not wholesale energy prices, which are set nationally. It is network charges, the cost of piping electricity and gas to your street. Ofgem sets these regionally, and they vary by up to £80 a year depending on where you live. The North of Scotland, for example, has sparse population and older infrastructure, so distribution costs per household are higher. London benefits from dense demand and newer cables.
But the gap is widening because Ofgem is phasing in a new charging methodology called TNUoS (Transmission Network Use of System) from 2026. Generators in the North will pay less to connect, but households in the North will pay more to cover the fixed costs. The net effect: a transfer of roughly £50–£70 from northern homes to southern ones, on top of existing disparities.
What this means for your EPC and upgrade plans
If you live in a region with high standing charges, every kilowatt-hour you save matters more. A typical 3-bed semi in the North West using 12,000 kWh of gas and 3,000 kWh of electricity could see an annual bill of £1,850 in 2026. In London, the same usage might cost £1,700. That £150 gap is the equivalent of one month’s electricity bill, or the cost of a cavity-wall insulation job that could cut your heating demand by 20%.
The Energy Saving Trust says improving an EPC rating from D to C typically saves £200–£300 a year on energy costs. That saving alone would wipe out the regional penalty for northern households. So the maths is stark: if you are in a high-cost region, the payback period for insulation, draught-proofing, or a heat pump shortens by one to two years compared to the national average.
But, and this is the catch, the government’s Boiler Upgrade Scheme gives a flat £7,500 grant for heat pumps regardless of region. A household in the North West gets the same grant as one in London, even though the northern household faces higher ongoing costs. That feels like a missed opportunity. A regional uplift for high-cost areas would make the policy more equitable.
What you can do now
First, check your region’s projected standing charge on the Uswitch report. If you are in the top third, prioritise fabric-first upgrades: loft insulation (costs about £300, saves £180 a year), cavity-wall insulation (£500, saves £250), and draught-proofing (£200, saves £60). These are the quickest wins before the 2026 price changes fully land.
Second, consider switching to a time-of-use tariff like Economy 7 or a smart tariff from Octopus or EDF. These can shift your consumption to cheaper periods, which is especially valuable in high-standing-charge regions where the unit rate is also above average.
Third, if you are planning a heat pump, do not wait. The £7,500 grant is open until 2027, but installer lead times are already stretching to 12 weeks in some areas. A heat pump in a well-insulated home in a high-cost region will deliver payback faster than in a low-cost region, because every kWh you replace with a cheaper heat-pump kWh avoids the high regional unit rate.
Frequently Asked Questions
Yes, if your fixed deal is set to expire in 2026. Fixed tariffs still include regional network charges, so the gap applies regardless of your supplier. Check your renewal date and compare tariffs now, before the new charging methodology takes effect.
No, standing charges are set by Ofgem and vary by region and meter type. However, switching to a prepayment meter can sometimes lower the standing charge, though unit rates are typically higher. The best strategy is to reduce your overall consumption so the standing charge becomes a smaller proportion of your total bill.
