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Gaming PC · Ofgem 1 July to 30 September 2026

Mid-range PC (RTX 3070) electricity cost — Streamer — 6 h live stream

Content creator / streamer running a full system (gaming + capture/encoding) for 6 hours, 5 days a week. A <strong>Mid-range PC (RTX 3070)</strong> draws 350 W total (GPU 220 W + rest of system 130 W). Cost: £2.74/week at Ofgem cap 26.11p/kWh (1 July to 30 September 2026).

Mid-range PC (RTX 3070)Streamer — 6 h live stream: 0.350 kW × 6 h = 2.100 kWh = 54.8p/session. Weekly (5 sessions): £2.74. Monthly: £11.88. Annual: £142.56. Source: Nvidia / AMD / Intel — published TDP specifications for GPU and CPU components + Ofgem (OGL v3.0).

Per session
54.8p
Per week (5 sessions)
£2.74
Per month
£11.88
Per year
£142.56

Rig specification

Tier
mid-range
GPU
Nvidia GeForce RTX 3070
GPU TDP
220 W
Rest of system
130 W
Total system
350 W
Sessions/week
5

Nvidia RTX 3070 TDP 220 W (published spec); rest of system ~130 W mid-range build

How the cost is worked out

  1. System power: 220 W (GPU) + 130 W (CPU + rest) = 350 W total.
  2. Per session: 350 W ÷ 1000 × 6 h = 2.100 kWh × 26.11p = 54.8p.
  3. Weekly: 54.8p × 5 sessions = £2.74.
  4. Monthly: £2.74 × 52 ÷ 12 = £11.88.
  5. Annual: £2.74 × 52 = £142.56.

Same scenario — other gaming rigs

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Updated each time the Ofgem cap changes.

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GPU TDP from Nvidia / AMD / Intel — published TDP specifications for GPU and CPU components. Unit rate 26.11p/kWh from Ofgem — Energy price cap unit rates and standing charges (1 July to 30 September 2026), OGL v3.0. Last updated: 2026-06-20.