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Your postcode tells us your region’s rates. Add the kWh from your last annual statement for the most accurate price, or pick your home size and we’ll use typical figures.

Postcode (parameter postcode, e.g. RG31 6JB)

Tariff (tariff: fixed12, flexible, ev-nights, or leave blank to compare)Compare all tariffsBrightwell Fixed 12Brightwell FlexibleBrightwell EV Nights

Electricity a year, kWh (electricity_kwh; it’s on your annual statement)

Gas a year, kWh (gas_kwh; 0 or blank if you don’t have gas)

Don’t know your use? (property)Choose your home size1-bed flat, 1–2 people (1,600 kWh electricity, 6,000 kWh gas)2-bed flat (2,100 kWh electricity, 7,500 kWh gas)2-bed house (2,300 kWh electricity, 8,500 kWh gas)3-bed house, 2–4 people (2,700 kWh electricity, 11,000 kWh gas)4-bed house (3,800 kWh electricity, 14,000 kWh gas)5+ bed house (4,600 kWh electricity, 17,000 kWh gas)

Fuels (fuel: dual or electricity)Electricity and gasElectricity only

EV Nights: share of electricity used 23:30–05:30, % (off_peak_pct; default 12 for a home without an electric car, often 40–60% with one)

Solar export a year, kWh (export_kwh, optional)

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How the quote works

This page works by link as well as by form. Every price is worked out from the parameters in the address, so you can bookmark or share a quote:

• Three-bed house in Reading, gas and electricity — /quote?postcode=RG31+6JB&electricity_kwh=2700&gas_kwh=11500
• Two-bed flat in Leeds, electricity only, Flexible — /quote?postcode=LS6+1DZ&property=flat-2bed&fuel=electricity&tariff=flexible
• Electric car and heat pump in Horsham, EV Nights — /quote?postcode=RH12+4QX&electricity_kwh=7500&tariff=ev-nights&off_peak_pct=55
• Four-bed house in Cambridge, Fixed 12 — /quote?postcode=CB1+9WN&property=house-4bed&tariff=fixed12

Prices shown are for monthly Direct Debit and apply from 1 October 2026. Electricity prices carry no VAT from 1 October 2026 to 31 March 2027; gas prices include VAT at 5%.