Live from the NESO carbon intensity API, which updates every half hour. There's a terminal version too.

Tool
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Carbon intensity is loading, in grams of CO₂ per kWh.

Notes

  • The gauge is full at 400 g/kWh. GB rarely gets near that these days.
  • When the current half hour has no measured reading yet, it shows NESO's forecast.
  • Imports aren't counted as low carbon, because the mix doesn't say where they came from.