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GB grid nowLow-carbon72%Wind32.3%Solar17.5%Nuclear11.7%Gas3.9%Imports21.6%Carbon intensity56 g/kWh
Data · updated every 30 minutes

Britain’s electricity, right now

The share of each fuel in Great Britain’s electricity supply for the latest half hour, and how much CO₂ each kilowatt-hour carries.

Generation mix, Great Britain

low carbon

72%low-carbon

56gCO₂/kWh

  • Wind32.3%
  • Solar17.5%
  • Hydro2.1%
  • Biomass8.8%
  • Nuclear11.7%
  • Gas3.9%
  • Coal0.0%
  • Imports21.6%
  • Other2.2%
Half-hour to (UK time)Source: NESO Carbon Intensity API

Last 24 hours

Low-carbon share of GB electricityLast 24 hours

72%

Carbon intensityLast 24 hours

56gCO₂/kWh

Wind share of generationLast 24 hours

32%

30-day average carbon intensityLast 30 days

Range 27–247

121gCO₂/kWh

Great Britain, half-hourly to 8 Oct, 10:30 UK time. Source: NESO Carbon Intensity API. Live grid data →

How to read this

Low-carbon share adds up wind, solar, hydro, biomass and nuclear. Imports are shown separately because their carbon content depends on the country they come from.

Carbon intensity is grams of CO₂ emitted per kilowatt-hour of electricity consumed. It falls when the wind blows and the sun shines, and rises when gas plants fill the gap.

Source

Data comes from the Carbon Intensity API of the National Energy System Operator (NESO), published under the CC BY 4.0 licence. Figures cover Great Britain; Northern Ireland is part of the separate all-island electricity market.