Calculate your electricity costs with our free 2026 calculator. Estimate bills using current price cap rates and compare payment methods.
Estimate your electricity costs using current UK price cap rates (January - March 2026):
These are the Ofgem price cap rates that apply to all standard variable electricity tariffs:
| Payment Method | Unit Rate (per kWh) | Standing Charge (Daily) | Typical Annual Cost |
|---|---|---|---|
| Direct Debit | 27.69p | 54.75p | £1,168 |
| Pay on Receipt | 29.23p | 62.97p | £1,237 |
| Prepayment Meter | 26.84p | 54.74p | £1,132 |
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Typical Annual Cost Breakdown (Direct Debit):
Note: Rates vary slightly by region (±1-3%) depending on your Distribution Network Operator (DNO).
Understanding typical consumption helps you estimate your bills more accurately:
| Household Type | Monthly Usage | Annual Usage | Annual Cost (DD) |
|---|---|---|---|
| 1 Bedroom Flat | 180-220 kWh | 2,200 kWh | £809 |
| 2 Bedroom Flat/House | 220-280 kWh | 2,900 kWh | £1,003 |
| 3 Bedroom House | 320-380 kWh | 4,200 kWh | £1,363 |
| 4 Bedroom House | 420-500 kWh | 5,500 kWh | £1,723 |
| 5+ Bedroom House | 550-700 kWh | 7,500 kWh | £2,277 |
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The unit rate is what you pay for each kilowatt-hour (kWh) of electricity you use. Currently 27.69p/kWh on Direct Debit, this varies by payment method and region.
Example: Running a 100W light bulb for 10 hours uses 1 kWh (100W × 10 hours ÷ 1,000), costing 27.69p.
A fixed daily charge covering supply costs, meter maintenance, and network infrastructure. You pay this every day regardless of usage - currently 54.75p/day (£199.84/year).
Formula:
Monthly Bill = (kWh Used × Unit Rate) + (Days × Standing Charge) + 5% VAT
Example (350 kWh, Direct Debit, 30 days):
The price cap sets maximum average rates, but actual prices vary by Distribution Network Operator (DNO) region:
From April 1st, 2026, electricity bills will fall by £130-£150 per year. The government is removing legacy environmental levies from electricity bills, including costs related to renewable energy subsidies and energy efficiency schemes.
Expected changes:
Why this matters: Electricity bills have been historically higher than gas due to these levies. Removing them brings electricity costs more in line with other energy sources and makes electric heating and EVs more affordable.
LEDs use 75% less electricity than traditional bulbs and last 25 times longer. Replacing 10 bulbs saves £35-50 annually.
Appliances on standby use 10% of household electricity. Switching off at the plug saves £30-50 per year.
A-rated appliances use 20-40% less electricity than older models. Replace old fridges, freezers, and washing machines for savings of £50-100/year.
Washing at 30°C instead of 40°C uses 40% less electricity. Modern detergents work effectively at lower temperatures, saving £12-20/year.
Tumble dryers are energy-hungry appliances. Air drying saves £100-150 annually if you use a dryer regularly.
Overfilling kettles wastes electricity. Boiling one cup at a time instead of a full kettle saves £11/year.
Cooking with lids on pans uses 65% less energy. Save £30-40 annually by keeping heat in while cooking.
Ice build-up makes freezers work harder. Defrosting regularly keeps efficiency high and saves £25-40/year.
Free smart meters show real-time usage, helping you identify wasteful appliances. Average users save £47/year with better awareness.
Economy 7/10 tariffs offer cheaper overnight rates (2-5am). Perfect for EV charging, dishwashers, and washing machines - save £100-200/year.
This calculator uses official Ofgem price cap rates for January-March 2026. Estimates are accurate within 1-3% for typical customers.
Actual bills may vary slightly because:
As of January 2026, some competitive fixed tariffs are available at similar prices to the price cap. Consider fixing if:
However, with April 2026 bringing £130-150 bill reductions due to levy removal, waiting until April to fix might get you an even better deal.
Direct Debit is typically the cheapest payment method, offering unit rates around 5% lower than pay-on-receipt.
However, since 2024, prepayment meters have had rates aligned with Direct Debit as part of government reforms, so prepay customers now get similar prices.
Pay on Receipt (standard credit) remains the most expensive option, costing around £100-150 extra per year.
Here are typical electricity costs for common appliances (based on 27.69p/kWh):
Winter electricity bills are typically 20-40% higher because:
If you have gas central heating, winter electricity increase is smaller (10-15%) as most heating costs go on your gas bill.
To find your exact electricity usage:
Knowing your actual kWh usage helps you budget accurately and identify unexpected increases.
Economy 7 is a two-rate tariff offering cheaper electricity during 7 hours overnight (typically 12am-7am or 1am-8am) and higher rates during the day.
Typical rates:
Worth it if you:
Not worth it for typical households using most electricity during evenings.
Energy prices are volatile and unpredictable. However, current outlook for 2026:
Factors that could push prices up: global energy crises, geopolitical events, extreme weather affecting infrastructure.
Factors pushing prices down: more renewable generation, improved energy efficiency, technological advances in storage.
Submit regular meter readings: Avoid estimated bills by sending monthly readings to your supplier. This keeps bills accurate and prevents overpayment.
Get a smart meter: Free installation, real-time usage monitoring, and automatic readings. Helps identify wasteful appliances and typically saves £47/year.
Review your tariff annually: Check comparison sites every October/November to see if better deals are available. Don't be loyal - switching can save £100-300/year.
Combine electricity and gas: Dual fuel tariffs from one supplier often offer discounts of £30-50 annually.
Check eligibility for discounts: Warm Home Discount (£150), council Household Support Fund, energy supplier hardship grants if struggling.