2 kW Storage Heater (charge rate) running cost — 1 h occasional use
A 2 kW Storage Heater (charge rate) (2,000 W) running 1 hours/day uses 2.00 kWh and costs 52.2p/day at the Ofgem cap of 26.11p/kWh (1 July to 30 September 2026).
2 kW Storage Heater (charge rate) — 1 h occasional use: 2,000 W ÷ 1000 × 1 h × 26.11p/kWh = 52.2p/day. Weekly (3 days): £1.57. Annual: £81.46. Coverage: Charges overnight on Economy 7 — heats medium room during the day. Source: Energy Saving Trust (wattage, typical/indicative); Ofgem (OGL v3.0).
- Per hour
- 52.2p
- Per day (1 h)
- 52.2p
- Per week (3 days)
- £1.57
- Per year
- £81.46
Heater specification
- Rated power
- 2,000 W (2.0 kWh/h)
- Coverage
- Charges overnight on Economy 7 — heats medium room during the day
- Cost per kWh (Ofgem cap)
- 26.11p
- Cost per hour
- 52.2p
Energy Saving Trust — typical 2 kW storage heater charge rate
How the cost is worked out
- Wattage: 2 kW Storage Heater (charge rate) draws 2,000 W = 2.0 kWh per hour.
- Daily use: 2.0 kWh × 1 h = 2.00 kWh/day.
- Daily cost: 2.00 kWh × 26.11p = 52.2p.
- Weekly (3 days): 52.2p × 3 = £1.57.
- Annual: £1.57 × 52 = £81.46.
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2,000 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.