Power system records
2019 saw all clean electricity sources break their previous records for annual production. For wind, solar and biomass, these were all-time highs; for nuclear, it was the lowest output recorded this century. Wind supplied more than a fifth of Britain’s electricity for the first time, while coal fell to a new low of just 2%. 2019 was also the first year where Britain’s electricity averaged below 200 grams of CO2 per kWh.