Electricity demand worldwide grew by 4% last year, fuelled by heatwaves and the expanding energy requirements of data centres.

Renewable power generation provided a record 32% of global electricity last year, a report by energy think tank Ember said on Tuesday, as overall electricity demand grew 4% driven by heatwaves and data centres.

The world used clean power sources to meet more than 40% of its electricity demand last year for the first time since the 1940s, figures show. A report by the energy thinktank Ember said the milestone was powered by a boom in solar power capacity,