Romania Shuts Last Nuclear Reactor as Danube Hits 90-Year Low

Key Facts

In a move reflecting the deepening energy challenges in Eastern Europe due to extreme weather, Romania's Nuclearelectrica has begun disconnecting the last operating reactor at the Cernavoda nuclear power plant. This decision follows water levels in the Danube river hitting a 90-year low, making it impossible to maintain the necessary cooling operations safely. According to reports, this shutdown follows the closure of another reactor in late July as scorching temperatures and drought continue to impact the region.

The suspension of nuclear output in Romania increases pressure on alternative energy sources, as these developments heighten regional reliance on natural gas and coal to bridge the supply gap. Per market data, the reduction in nuclear generation—which typically accounts for a significant portion of the local energy mix—is expected to drive regional energy prices higher, especially as water-dependent hydroelectric and nuclear facilities across Central and Eastern Europe face similar constraints.

Looking ahead, the outlook remains tied to the duration of the drought and potential rainfall in the Danube basin to restore safe cooling levels. With instrument price data unavailable at the close of August 13, 2026, traders are monitoring the impact of this supply crunch on regional energy contracts, while also weighing broader economic indicators such as Germany's (DE) Balance of Trade, which showed a 15.4 billion surplus on August 7, as a gauge for industrial resilience against energy costs.