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German consortium wins dismantling contract from Switzerland

21.03.2024

Signing of the contract

As the "UfG" consortium, Uniper Nuclear Services GmbH, Framatome GmbH and GNS Gesellschaft für Nuklear-Service mbH have jointly been awarded the contract for dismantling and packaging of the reactor pressure vessel (RPV), including the RPV head and insulation, at the Mühleberg nuclear power plant (KKM) in Switzerland.

The power operation of the Mühleberg nuclear power plant was finally discontinued on December 20, 2019. After a 9-month period during which technical post-operation was established, the decommissioning of the KKM began in September 2020.

The UfG scope of delivery and services includes the dismantling and packaging of the following components:

  • RPV including calotte and stand frame,
  • RPV lid,
  • control rod drive housing and
  • RPV insulation with brackets and plates

The total dismantling mass of this project is approx. 270 tons. Work on site will start at the end of 2025.

The UfG concept includes the mechanical pre-dismantling of the RPV in the installation position into the largest possible segments. This is followed by thermal post-dismantling and packaging for storage.

The owner of the Mühleberg nuclear power plant (KKM) is BKW, an internationally operating Swiss energy and infrastructure company with over 12,000 employees. It plans, builds and operates energy production and supply infrastructures for companies, private households and the public sector. Its distribution grid is the largest in Switzerland.

For additional information
Michael Köbl
Head of Communications, GNS group

GNS Gesellschaft für Nuklear-Service mbH
Frohnhauser Straße 67
45127 Essen
Germany

+49 (0)201 109-1444
michael.koebl@gns.de