On two occasions so far this June, renewable energy technologies have accounted for around half or more of Britain’s electricity needs. At the same time, grid carbon emissions have fallen below 100g per kilowatt-hour, meeting the target set by the Committee on Climate Change for 2030.

Around lunchtime on Wednesday 7 June, Britain’s electricity grid was running at a steady and best-ever level of about 55% renewable power.  Solar, wind and hydro power, plus large-scale biomass generation at Drax power station added up to 19.3 gigawatts (GW) of output, even leaving out the smaller distribution-connected bioenergy like AD plants.

Nearly 55% of UK electricity came from renewables between 1pm and 2pm on 7 June – estimated at

9.5 GW wind (27.2% of total electricity), 7.5 GW solar (21.4%), 1.9 GW biomass (5.3%) and 0.2 GW hydro (0.5%).

Altogether, renewables accounted for over 19 GW out of about 35 GW demand.

Similar peaks in wind and solar output on Sunday 11 June saw grid carbon emissions below 100g per kilowatt-hour almost continuously for 11 hours from 0845 to 1945. The independent Committee on Climate Change has set this as an average target level of low-carbon electricity production for the year 2030, but it looks likely to be routinely exceeded for short periods this summer.


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