July 27, 2018 / 1:28 PM / in 3 months

Heatwave boosts British power demand - report

LONDON, July 27 (Reuters) - Soaring temperatures in Britain have led to an increase in electricity demand equivalent to an extra 2.5 million homes, a report by academics at Imperial College London said on Friday.

Britain’s prolonged heatwave has prompted a warning from the government for people to keep out of the sun, while the Meteorological Office said all-time temperature records could be broken.

Efforts to keep cool such as ramping up air-conditioning units and supermarkets turning up freezers have boosted demand for electricity, the Imperial College report for British power firm Drax’s Electric Insights series said.

Demand for electricity rises 350 megawatts (MW) for every degree the temperature rises above 20 degrees Celsius the report said.

Unseasonably high temperatures led almost 900 MW of extra power demand a day during the last week of June, the equivalent to demand from 2.5 million households or an area the size of Scotland, it said.

“Global demand for cooling technology is only going to increase as temperatures, and global income, rise,” Iain Staffell of Imperial College London said.

Fortunately for the National Grid, the weeks of blazing sunshine that have driven up temperatures have also boosted production from the country’s solar panels.

Solar power was providing almost 17 percent of the country’s electricity at 1200 GMT on Friday, National Grid and Sheffield University data showed. Last year, solar power provided around 1 percent of total available UK power, based on government figures.

That means the additional power demand is unlikely to cause problems.

The warmer weather and increased demand have contributed to higher power prices this summer.

Average British wholesale power prices averaged around 56 pounds per megawatt hour over June and July so far this year, around 40 percent higher than the average for the same period in 2017, Reuters data showed.

Reporting By Susanna Twidale; Editing by Jan Harvey

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