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Almaraz Owners Seek 2030 Extension, Triggering Parallel Review by Nuclear Watchdog

A legal deadline now forces the nuclear regulator to process an extension bid alongside mandatory shutdown paperwork.

Overview

  • Iberdrola (52.7%), Endesa (36%) and Naturgy (11.3%) plan to file today to extend Almaraz’s life to 2030, pending approval at an extraordinary shareholders’ meeting that requires unanimity.
  • The owners will also send shutdown documentation to the Nuclear Safety Council this week to meet the November 1 rule tied to the first reactor’s scheduled disconnection on November 1, 2027.
  • The CSN is preparing the closure file and will have to assess a life-extension request in parallel, with the possibility of issuing separate reports on closure and on any extension.
  • The Ecological Transition Ministry maintains three conditions for any prolongation—radiological safety, security of supply, and no extra cost for consumers or taxpayers—and will evaluate the request once formally received.
  • Utilities have paused demands for national tax cuts and are relying on a promised regional levy reduction in Extremadura, a pledge clouded by December’s early elections, with the plant currently paying over €80 million a year.