Europe's Heatwave Leaves Danube Too Low To Cool Nuclear Reactors
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Europe's Heatwave Leaves Danube Too Low To Cool Nuclear Reactors
Radu MirutaPéter MagyarPeter MagyarRadu MiruțǎIlie BolojanNuclearelectricaFordDacia

Hungary faces power cuts as Danube drought drives Paks nuclear plant toward shutdown; Romania blasts rock to reroute cooling water to Cernavodă reactor

Hungary faces potential power cuts as drought conditions lower Danube water levels, impacting the Paks nuclear plant's operations. Meanwhile, Romania has resorted to blasting rock to reroute cooling water to its Cernavodă reactor, which has also been affected by the severe drought and electricity production decline.

The Guardian The Guardian+1 source3 August 2026 · 16:56 UTC
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Hungary's Paks nuclear plant, which typically generates nearly half of the country's electricity, is operating at less than half capacity due to the Danube's record low water levels. Prime Minister Péter Magyar warned of a complete shutdown next week, stating, “An energy crisis situation could arise beginning Monday.”38

In Romania, a nationwide state of emergency has been declared as the drought forced the shutdown of a reactor at the Cernavodă nuclear plant. The Romanian government took drastic measures, including a controlled explosion to redirect cooling water to the remaining reactor. The operation involved 180kg of explosives and was aimed at building a temporary dam to increase water flow to the reactor's cooling system.1247

Romania's Defence Minister Radu Miruță emphasized the importance of keeping the reactor operational, stating, “Any day past Wednesday or Thursday that the nuclear power plant functions is a gain.” The Cernavodă plant typically supplies about 20% of Romania's electricity needs, and its shutdown has exacerbated the energy crisis in the region.

Both countries are increasingly relying on expensive power imports as demand surges due to heatwave conditions. Hungary's voluntary power cuts have reduced demand by 700 MW, while Romanian car manufacturers have halted production to conserve energy. The situation remains critical, with no significant rainfall forecasted to alleviate the drought conditions affecting the Danube.6

Key Insight
“Magyar said the 44-year-old Paks plant, normally generating nearly half of Hungary's electricity, was running at just over 10% capacity, with its last 240 MW turbine likely working only through Tuesday. Romania's navy used 180kg of explosives to clear a rock blocking the channel; Dacia, Ford and Richter also cut output or usage.”
Hungary’s Paks nuclear plant faces shutdown as the Danube water levels hit record lows
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Hungary’s Paks nuclear plant faces shutdown as the Danube water levels hit record lows
CuriousCats studied:
1
The GuardianThe Guardian
“The Danube operation used 180kg of explosives, the Adevărul newspaper reported, to move a large rock restricting the flow of water in a blast that sent a tower of water ⁠into the air.”
The Guardian →
2
ReutersReuters
“Romania blew up ​a rock outcrop on Monday to help redirect vital cooling water from the drought-hit Danube to its last working ‌nuclear reactor, as neighbouring Hungary said it might be able to eke out two more days of power from its only atomic plant.”
Reuters →
Ask CuriousCats
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