Hungary is shutting down its only nuclear power plant because record-low water levels in the Danube River have left insufficient cooling water [1].
The crisis threatens the nation's energy stability during an intense heatwave. Because the Paks Nuclear Power Plant relies on the river to cool its reactors, the drought creates a direct risk of overheating and system failure.
Prime Minister Peter Magyar said the situation on Friday, Aug. 2 [1]. Reports from Wednesday morning, Aug. 1, indicated that three of the four reactor units were not in operation [2]. The remaining unit was operating at approximately 50% capacity [3].
This event marks the first shutdown of the plant in its history [1]. The facility is located on the banks of the Danube River, where water levels have plummeted due to a combination of prolonged drought and a severe European heatwave [1, 4].
Nuclear plants require vast amounts of water to regulate the temperature of the reactor cores. When river levels drop below a critical threshold, the intake systems cannot pull enough water to maintain safe operating temperatures. This forced reduction in power output occurs at a time when electricity demand typically peaks due to air conditioning use during heatwaves [4].
Government officials have not yet provided a timeline for when the reactors will return to full capacity. The restoration of power depends entirely on the recovery of the Danube's water levels [1, 2].
“Three of the four reactor units were not in operation”
The shutdown of the Paks plant highlights a growing vulnerability in European energy infrastructure. As climate-driven heatwaves and droughts become more frequent, the reliance on river-cooled nuclear power creates a paradox where the highest demand for electricity coincides with the lowest capacity to produce it safely.
