Nuclear power stations in France are facing a critical test as rising river temperatures threaten to curtail electricity output. The heatwaves gripping much of Western Europe have pushed water levels in key rivers to near-record highs, forcing operators to reduce energy production to avoid exceeding environmental limits on cooling discharge.
EDF's Golfech nuclear power station was forced to shut down one reactor last month when the Garonne River approached its maximum allowable temperature. Further restrictions are expected at Nogent from 14 July if forecasts hold true. The situation is exacerbated by surging electricity demand across Europe, driven by soaring air-conditioning use during the prolonged heat.
The extreme weather conditions – characterised by high pressure, intense sunshine, and below-average rainfall – have caused widespread problems. Devastating wildfires swept through Spain last week, with multiple blazes breaking out in the Almería province, prompting evacuations and major firefighting efforts. Exceptionally dry vegetation, low humidity, and strong gusts created a perfect storm for rapid fire spread.
Weather models suggest that while some areas may see a slight reprieve from the heat, warmer-than-average temperatures are set to persist across much of southern Europe over the coming week. With little rain on the horizon, wildfire risks remain high, and rivers will continue to run hot, keeping pressure on nuclear power operations.
In Asia, Typhoon Bavi – one of the strongest tropical cyclones of the 2026 north-west Pacific season – has weakened but still poses a significant flooding threat as it moves inland. Over two million residents were evacuated before the storm hit China's eastern coast, and hundreds of flights, rail services, and ferry operations were suspended. Heavy rainfall is expected to continue across eastern China during the coming week, increasing the risk of flash flooding, river flooding, and landslides.