France's state-owned energy giant EDF has been forced to temporarily shut down three nuclear reactors, including two on Thursday, as a 'precautionary environmental measure' during a record-breaking heatwave. These shutdowns, mandated by regulations requiring EDF to monitor river temperatures to avoid discharging water that could harm aquatic ecosystems, directly impact France's energy independence, which relies on its 57-reactor fleet for close to 70% of its electricity generation.
The reactors taken offline on Thursday are located at the Nogent-sur-Seine plant on the Seine River north of Paris and at the Bugey facility on the Rhone near Lyon. A reactor at the Golfech plant on the Garonne river in southwestern France was also taken offline on Monday, with output reduced at a number of other sites across EDF's fleet.
Despite these significant outages impacting national energy supply, French grid operator RTE stated on Wednesday that “France has sufficient generation capacity to meet electricity demand, including in the event of outages at certain production facilities,” even as the country grapples with unprecedented temperatures.
Public Services Strained
The heatwave has placed more than half of France's 96 departments under a danger-to-life red alert. Météo-France reported that Tuesday 23 June was the hottest day recorded since measurements began in 1947, with Wednesday marking the second consecutive hottest day. The strain on national public services is evident, with France's health minister Stéphanie Rist warning of risks to young people as well as the elderly, noting that the ambulance service in Paris saw four times more cardiac arrests than normal over a 24-hour period.
Paris police chief Patrice Faure confirmed, “We are reaching a saturation point in hospital facilities.” Paris mayor Emmanuel Grégoire observed a rising mortality rate in the capital, urging citizens to avoid direct sunlight and exercise “absolute vigilance.” Professor Louis Soulas, head of the Accident and Emergency department in Rennes, linked the deaths of five or six people in their homes in the region to the extreme temperatures, noting victims were “people aged 60 and up,” not just the very elderly. Rennes saw a record 40.6C three days ago, only for that to be broken by 41C two days ago, surpassing a previous record from four years ago.
The crisis extends to education, with French teachers' unions calling for a strike over “unacceptable working conditions” in the heat. They stated that despite having called for mitigation measures, “nothing was done” and the “health of staff, students and their working conditions are being jeopardised.” France's Orsan health emergency plan is now moving to level three to help the health system “withstand the strain over time and protect the most vulnerable.”
The Cost to Our People
Across Europe, the heatwave is exposing vulnerabilities in national infrastructure and public services. Hundreds of schools have been shut or closed early, and train services in major cities, including Paris and Brussels, have been reduced to lower the risk of breakdowns. This marks Europe's third heatwave of the year, with forecasters warning temperatures could hit 43C in the Mediterranean.
The energy strain is a recurring issue, directly impacting the budgets of European households and industries. During peak days of last year's June and July heatwave, daily power demand rose by up to 14%, driving a two to three-fold increase in average daily power prices. Scientists report parts of Europe are experiencing up to 40 additional days of extreme heat stress compared with the 1970s.
United Nations climate change chief Simon Stiell seized the moment to call for “a faster shift to renewables,” a policy direction often championed by the Brussels elite that critics argue further undermines national energy independence and industrial capacity, making Europe more reliant on external sources. He claimed “Europe's savage heatwave has the fingerprints of the climate crisis all over it.”
In Germany, temperatures could hit 40C in some western and south-western areas on Thursday. The southwestern town of Bad Bergzabern recorded an overnight temperature on Wednesday that equalled a national heat record set seven years ago. National train operator Deutsche Bahn is offering free ticket cancellations, impacting national infrastructure and mobility. Luxembourg recorded its highest June temperature of 38.3C in Wormeldingen on Wednesday, and a red alert level for “extreme thermal stress” has been extended until Saturday night.
Italy's Florence Uffizi museum halted ticket sales until 28 June, citing an air conditioning system unable to cope with “the high flow of visitors and the extreme temperatures.” This highlights the strain on national cultural institutions and infrastructure under current conditions. Forecaster Lorenzo Tedici told Italian media that “Gone are last century's June days of 32C daytime temperatures and cool 17C nights,” suggesting a profound and unwelcome transformation of the European climate and way of life.