Heat also impacts the electricity grid infrastructure, with adaptation costs estimated at around 600 million euros over the next 15 years, including expenses for underground cabling and network upgrades.

As heatwaves become more frequent, increased use of climate control and infrastructure costs are straining the energy network, potentially leading to higher electricity prices.

Running air conditioning units significantly raises electricity bills, with one hour of cooling costing between 29 and 49 cents, and annual costs for two months of cooling estimated at around 285 euros per household.

High temperatures are impacting nuclear power plant production by limiting cooling efficiency, although current losses remain under 1%, with potential restrictions during heatwaves.

The ongoing heatwave in France has caused electricity prices to rise, with market prices increasing by 15% in early August to €60 per megawatt-hour, up from €40-€50 in July.

The adoption of air conditioning is projected to surge, with up to 95% of French homes expected to have AC by 2050, which will double energy consumption and worsen urban heat effects.

Future climate change could cause nuclear plant downtime to increase three to four times, further raising electricity prices.