Global power-sector emissions hit an “all-time high” in 2024, despite solar and wind power continuing to grow at record speed, according to analysis from thinktank Ember.

Emissions from the sector increased by 1.6% year-on-year, to reach a record high of 14.6bn tonnes of carbon dioxide (tCO2).

This increase was predominantly due to a 4% growth in electricity demand worldwide, leading coal generation to increase by 1.4% and gas by 1.6%.

Embers’ analysis finds that the increase in fossil-fuel generation was, in particular, due to hotter temperatures in 2024, which drove up electricity demand in key regions such as India.

Clean electricity generation grew by a record 927 terawatt house (TWh), which would have been sufficient to cover 96% of electricity demand growth not caused by higher temperatures.

Despite the increase in emissions in the short-term, this “should not be mistaken for failure of the energy transition”, notes Ember, but a sign we’re nearing a “tipping point” wherein changes in weather and demand hold a particularly strong sway.