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2026-08-04 20:11 UTC → 2026-08-05 02:53 UTC ·
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Alpine European drought impacts hydroelectric generation slashes hydro and nuclear output
In late July 2026 Austria’s leading power producer Verbund reported a record financial loss after a The severe Alpine drought reduced water flow to its hydro plants by about one‑third, cutting generation by 1.2 TWh and creating a €370 million that drove Verbund’s July 2026 earnings gap. The shortfall forced Verbund to purchase electricity on the market, prompting the company to consider diversifying its generation mix and geographic exposure. A few days later, the drought was shown gap continued to be a wider Alpine phenomenon. spread across Europe into early August. River levels across the Alps and the Danube basin fell to historic lows, slashing remained far below normal, cutting run‑of‑river hydro output in Austria, Switzerland, Germany, France and Slovenia generation to roughly half of normal levels. The shortage triggered emergency measures, including temporary shutdowns typical output. In Austria, July output fell to about 51 % of nuclear reactors the 15‑year average; Switzerland recorded 48 % of its average, while Germany’s EnBW hydro output was 63 % of its reference level in Hungary June and Romania due only about 80 % of the year‑to‑date target. Nuclear plants were also forced to curtail or cease operations because of insufficient cooling water, water. Hungary’s Paks reactor stopped completely, Romania’s Cernavodă unit was disconnected, and severe capacity reductions six reactors across the EU—including facilities in France and the United Kingdom—were either fully shut or operated at Serbia’s Iron Gate 1 plant. Across limited output. Slovenia’s hydropower is projected to drop 39 % in July 2026 versus the EU, gas‑fired same month in 2025. The combined shortfall is being partially offset by increased photovoltaic generation rose 8 % year‑on‑year, and analysts called for greater hybridisation of wind, solar pumped‑storage capacity, and storage authorities say there is no immediate threat to compensate for the hydro deficit. Verbund’s CEO reiterated that 2026 was the driest year on record for the company’s facilities, underscoring supply security. Nevertheless, the broader regional energy challenges posed by the drought. deficit is expected to shave 0.1‑0.2 % off Germany’s third‑quarter GDP and raise transport costs for coal‑dependent industries.