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,
Embalse Nuclear Power Station taken offline, having completed its first operating cycle of about 30 years. On 1 September 2016, the plant received the last two of four steam generators, fundamental elements for the life extension of the plant. The plant is being reconditioned to deliver power for another 30 years: the replacement of the four steam generators is one of the key steps. Embalse Nuclear Power Station The Embalse Nuclear Power Station () is one of three operational nuclear power plants in Argentina. It is located on the southern shore of a reservoir on the Río Tercero, near the city of Embalse, Córdoba,