How much does it cost to run a plasma tv?
A plasma tv typically draws about 350 W. At the current Ofgem price-cap electricity rate of 26.11p/kWh (1 July to 30 September 2026), a typical 4-hour use costs about 36.6p, and one hour costs roughly 9.1p.
Plasma TV running cost: ~0.35 kWh per hour β 9.1p/hour. A typical 4-hour use β 36.6p at 26.11p/kWh.
Plasma TV running-cost calculator
A plasma tv draws about 350 W. Set how long you run it and we apply the current Ofgem electricity unit rate of 26.11p/kWh.
Cost to run for 4 hours
36.6p
Uses 1.40 kWh at 26.11p/kWh.
- Per day
- 36.6p
- Per week
- Β£2.56
- Per year
- Β£133.42
Per-day/week/year figures assume one 4-hour run each day. Wattage is typical/indicative β your model may differ.
How the cost is worked out
- Wattage: a plasma tv draws about 350 W.
- Convert to kW: 350 Γ· 1,000 = 0.35 kW.
- Multiply by hours: 0.35 kW Γ 4 h = 1.40 kWh.
- Multiply by the unit rate: 1.40 kWh Γ 26.11p β 36.6p.
Frequently asked questions
How much does it cost to run a plasma tv?
A plasma tv draws about 350 W. At the Ofgem cap rate of 26.11p/kWh (1 July to 30 September 2026), a typical 4-hour use costs roughly 36.6p, and one hour costs about 9.1p.
How much electricity does a plasma tv use per hour?
At 350 W, a plasma tv uses about 0.35 kWh per hour, which is roughly 9.1p at the current cap rate.
Running costs for other appliances
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Wattage (350 W) is typical/indicative β your model may differ. Source: Heatable β How much energy do appliances use (typical ratings; draws on Energy Saving Trust / Centre for Sustainable Energy). Electricity unit rate from Ofgem β Energy price cap unit rates and standing charges (cap period 1 July to 30 September 2026, fetched 2026-06-18). Ofgem figures Β© Ofgem, Open Government Licence v3.0. Appliance wattages are typical/indicative, not measured. Ofgem.