1 kW Panel Heater running cost — 1 h occasional use
A 1 kW Panel Heater (1,000 W) running 1 hours/day uses 1.00 kWh and costs 26.1p/day at the Ofgem cap of 26.11p/kWh (1 July to 30 September 2026).
1 kW Panel Heater — 1 h occasional use: 1,000 W ÷ 1000 × 1 h × 26.11p/kWh = 26.1p/day. Weekly (3 days): 78.3p. Annual: £40.73. Coverage: Small-medium room (~12 m²). Source: Energy Saving Trust (wattage, typical/indicative); Ofgem (OGL v3.0).
- Per hour
- 26.1p
- Per day (1 h)
- 26.1p
- Per week (3 days)
- 78.3p
- Per year
- £40.73
Heater specification
- Rated power
- 1,000 W (1.0 kWh/h)
- Coverage
- Small-medium room (~12 m²)
- Cost per kWh (Ofgem cap)
- 26.11p
- Cost per hour
- 26.1p
Energy Saving Trust — typical 1 kW panel heater rating
How the cost is worked out
- Wattage: 1 kW Panel Heater draws 1,000 W = 1.0 kWh per hour.
- Daily use: 1.0 kWh × 1 h = 1.00 kWh/day.
- Daily cost: 1.00 kWh × 26.11p = 26.1p.
- Weekly (3 days): 26.1p × 3 = 78.3p.
- Annual: 78.3p × 52 = £40.73.
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Updated each time the Ofgem cap changes.
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1,000 W wattage from Energy Saving Trust — Heating your home guide (typical appliance ratings) (typical/indicative). Unit rate 26.11p/kWh from Ofgem — Energy price cap unit rates and standing charges (1 July to 30 September 2026), OGL v3.0.