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November 23, 2021

Leibstadt, Switzerland

By Carmen

Leibstadt is a 1,275MW nuclear reactor which is located within the premises of Leibstadt Nuclear Power Station. It is located in Aargau, Switzerland. The nuclear reactor is currently generating power and is in active status. The construction on the reactor commenced in Jan, 1974. The first power from the reactor was achieved in May, 1984. Subsequent to trial runs the reactor finally entered into commercial operation in Dec, 1984.

PID Project Type Total Capacity (MW) Active Capacity (MW) Pipeline Capacity (MW) Project Status Project Location Project Main Contractor
613 Nuclear 1,275 1,275 Active Aargau, Switzerland ABB; General Electric Technical Services


Leibstadt is a Generation II nuclear reactor developed by ABB and General Electric Technical Services, are the main contractors for the project.

The 1,275MW reactor is operated by Kernkraftwerk Leibstadt. Alpiq Holding, Axpo Power, Axpo Solutions, BKW Energie, Centralschweizerische Kraftwerke and AEW Energie are currently owning the project having ownership stake of 27.4%, 22.8%, 16.3%, 14.5%, 13.6% and 5.4% respectively.

Leibstadt is a type of BWR reactor. It features 648 fuel assemblies in the core of reactor, the place where fission occurs and energy is released. Safety contol rods that are used to control the fission rate in the reactor are 8 in number.

Development Status

The reactor construction commenced in Jan, 1974 and subsequently entered into commercial operation in Dec, 1984.

Contractors Involved

ABB was selected as the steam turbine supplier for the nuclear reactor. The company provided 1 steam turbine for the project. ABB and Poyry Schweiz were selected as the architect engineers for the reactor. The reactor system was supplied by GE Power. The reactor vessel have been supplied by Sulzer Ltd and Rotterdamsche Droogdok Mij (RDM). The material used for the construction of the vessel is Alloyed Steel (SA 533 B/SA 508 Cl 2). The civil works were carried out by ABB Ltd and Poyry Schweiz.

About ABB

ABB Ltd (ABB) is a provider of digital technologies. The company offers products, systems, solutions and services in electrification products, motion and industrial automation. Its offerings harness power reliability, increase industrial productivity and enhance energy efficiency. ABB sells products through direct sales forces and third-party channel partners such as distributors, installers, wholesalers, machine builders and OEMs and system integrators. It provides digitally connected and enabled industrial equipment and systems to customers in utilities, industry, transport and infrastructure sectors in Asia, Americas, the Middle East, Africa and Europe. The company has manufacturing facilities in the US, China, Czech Republic, Switzerland, Finland, Germany, Italy, Canada, Sweden, Poland and India. ABB is headquartered in Zurich, Switzerland.


All power projects included in this report are drawn from GlobalData’s Power Intelligence Center. The information regarding the project parameters is sourced through secondary information sources such as electric utilities, equipment manufacturers, developers, project proponent’s – news, deals and financial reporting, regulatory body, associations, government planning reports and publications. Wherever needed the information is further validated through primary from various stakeholders across the power value chain and professionals from leading players within the power sector.

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