Zaporizhzhia ‘extremely fragile’ relying on single off-site power line, IAEA warns
June 3, 2025, 3:00PMNuclear News
The Zaporizhzhia nuclear power plant in Ukraine. (Photo: Energoatom)
Europe’s largest nuclear power plant has just one remaining power line for essential nuclear safety and security functions, compared with its original 10 functional lines before the military conflict with Russia, warned Rafael Mariano Grossi, director general of the International Atomic Energy Agency.
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When the heat released by nuclear fission is used in a steam plant to produce mechanical power, the second law of thermodynamics dictates that a large part of the heat must be rejected to the environment. Most land-based nuclear plants reject heat by using cooling water from a river or ocean.