Sellafield with extension options to 17 years. On 13 January 2015, the NDA announced that NMP would lose the management contract for Sellafield Ltd. as the "complexity and technical uncertainties presented significantly greater challenges than other NDA sites", and the site was therefore "less well suited" to the NDA's existing standard management model. The new structure, which came into effect on 1 April 2016, saw Sellafield Ltd. become a subsidiary of the NDA. Activities at the Sellafield site primarily support decommissioning of historic plants, and reprocessing fuel from UK and international nuclear reactors. Decommissioning projects include the Windscale Piles, Calder Hall,
Beaver Valley Nuclear Power Station an earthquake intense enough to cause core damage to the reactor at Beaver Valley was Reactor 1: 1 in 20,833; Reactor 2: 1 in 45,455, according to an NRC study published in August 2010. Beaver Valley 1 was used as the reference design for the French nuclear plant at Fessenheim. Beaver Valley Nuclear Power Station Beaver Valley Power Station is a nuclear power plant covering near Shippingport, Pennsylvania, United States, roughly northwest of Pittsburgh. The Beaver Valley plant is operated by FirstEnergy Nuclear Operating Corporation. This plant has two Westinghouse pressurized water reactors. While the Shippingport Reactor has been decommissioned,