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Historic generation mix and carbon intensity

NESO·data_release·low·4 Mar 2020·source document

Summary

NESO published historical carbon intensity data from January 2009 onwards, measuring CO2 emissions per kilowatt hour of electricity generation. The dataset uses seasonal decomposition to correct for missing or irregular data points and remains subject to ongoing data cleansing.

Why it matters

This is routine statistical reporting that provides context for policy analysis but changes no market mechanisms. The data supports carbon pricing discussions and renewable deployment decisions by making generation mix trends transparent.

Key facts

  • Data from 1 January 2009
  • Seasonal decomposition applied
  • Subject to ongoing data cleansing

Areas affected

data centrescarbon pricingrenewables

Related programmes

Clean Power 2030
Memo

The carbon intensity of electricity measures how much carbon dioxide emissions are produced per kilowatt hour. This dataset contains data from 1 January 2009. It has seasonal decomposition applied to correct missing or irregular data points. The data is subject to change due to a data cleansing process taking place to provide the most accurate figures.