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1 1 (April 9, 2024)

handle is hein.crs/goveppf0001 and id is 1 raw text is: Russian Military Actions at Ukraine's Nuclear
Power Plants
Updated April 9, 2024
Russia's ongoing military occupation of Ukraine's six-reactor Zaporizhzhia nuclear power plant
(ZNPP)-the largest in Europe-has raised widespread alarm about potential damage to the plant that
could cause large radioactive releases to the environment. Russian forces captured the plant on March 4,
2022, with reported heavy fighting and artillery shelling.
Multiple drone strikes on the plant on April 7, 2024-including the containment dome roof of one of the
reactors-constituted a major escalation of the nuclear safety and security dangers facing the
Zaporizhzhya Nuclear Power Plant, according to Director General Rafael Mariano Grossi of the
International Atomic Energy Agency (IAEA). An IAEA team at the site found no damage to the plant's
critical safety systems, but reported blood at the site of one explosion.
Since August 2022, military action in region has severed all off-site power to the Zaporizhzhia plant eight
times, according to IAIA. Whenever offsite power has been lost, the plant's emergency diesel generators
have been activated to provide electricity for reactor cooling systems. The plant's six reactors have been
shut down since September 2022, according to the Organisation for Economic Co-operation and
Development Nuclear Energy Agency. However, decay heat from the reactors' nuclear fuel must be
continuously removed to prevent overheating and radioactive releases.
After months of negotiation, an IAEA expert team arrived at ZNPP on September 1, 2022, to assess the
conditions at the plant. IAEA's report on the mission, issued September 5, 2022, described extensive
damage to plant facilities and surrounding infrastructure. The report warned that continued military action
1represented a constant threat to nuclear safety and security because critical safety functions (containment
of the radioactivity and cooling in particular) could be impacted. The report called for establishment of
a nuclear safety and security protection zone around the ZNPP. It also noted that the plant's operating
staff is subject to constant high stress and pressure which could lead to increased human error with
implications on nuclear safety. Russian forces have seized control of ZNPP and its management, but the
plant's operational personnel have remained on duty. IAEA experts will remain at the plant to monitor
safety conditions.
Congressional Research Service
https://crsreports.congress.gov
IN11883
CRS INSIGHT
Prepared for Members and
Committees of Congress

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