UK Electricity Bill Calculator

The Ofgem Default Tariff Price Cap is the maximum price per kilowatt-hour (p/kWh) and maximum daily standing charge (p/day) that licensed energy suppliers can charge domestic customers on standard variable tariffs across Great Britain (England, Scotland, and Wales). It is revised periodically by Ofgem based on wholesale energy costs, network charges, and policy obligations.

In the UK, an average domestic 'leccy bill' (electricity bill) under the Ofgem price cap is approximately £54 to £60 per month for a typical Medium consumption household (2,500 kWh/year or ~208 kWh/month) paying by Direct Debit. Low-consumption single-person homes (1,600 kWh/year) pay roughly £35 to £40 per month, while high-consumption homes with heat pumps (3,800+ kWh/year) pay £83 to £100+ per month.

For Q3 2026 (1 July – 30 September 2026), the Ofgem national benchmark electricity rate for Direct Debit customers is 26.11p/kWh with a standing charge of 57.19p/day (5% VAT). For Q4 2026 (1 October – 31 December 2026), the benchmark rate is 26.32p/kWh with a standing charge of 54.83p/day (0% statutory VAT period).

Domestic fuel and power in the UK is subject to period-specific tax schedules. For Q3 2026, standard domestic 5% VAT applies to energy charges and standing charges. For the Q4 2026 period, statutory 0% VAT applies according to published regulatory schedules.

From July 2026, Ofgem's updated Typical Domestic Consumption Values (TDCV) for Single Rate electricity (Profile Class 1) are: Low (1,600 kWh/year), Medium (2,500 kWh/year), and High (3,800 kWh/year). For Multi-Rate / Economy 7 meters (Profile Class 2), benchmarks are: Low (1,900 kWh/year), Medium (3,400 kWh/year), and High (6,100 kWh/year).

Northern Ireland does not fall under the GB Ofgem price cap. Instead, domestic electricity operates under the Single Electricity Market (SEM) and is regulated separately by the Northern Ireland Authority for Utility Regulation (Utility Regulator). Power NI's standard Home Energy regulated tariff features a base rate of 32.52p/kWh ex VAT (34.15p inc 5% VAT) and a £0.00 daily standing charge.

Power NI offers an eligible discount of up to 6% on unit charges for customers paying by Monthly Direct Debit with Energy Online paperless billing (4% for Direct Debit alone). This discount is capped at £15 per quarter (£60 per year maximum), meaning consumption exceeding ~769 kWh/quarter is billed at the standard 32.52p/kWh ex VAT rate.

No. Ofgem (Office of Gas and Electricity Markets) is the independent non-ministerial government regulator of the UK electricity and gas markets. Ofgem does not supply electricity, sell tariffs, or bill consumers. Your electricity is supplied and billed by retail suppliers such as British Gas, Octopus Energy, E.ON Next, EDF Energy, Scottish Power, or OVO Energy.

Economy 7 meters record electricity consumption on two separate registers: a cheaper off-peak night rate (typically 7 overnight hours) and a higher standard day rate. Typical illustrative splits assume roughly 58% day usage and 42% night usage, but actual financial benefit depends on whether a household heats water or storage heaters overnight.