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Gundremmingen nuclear power plant

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Climate-friendly powerhouse in southern Germany

In 1976, construction started on the two 1,344-MW units B and C at Gundremmingen near Günzburg in Bavaria. Following an eight-year construction period, the two units went on stream in 1984 and generated some 20 billion kWh of climate-friendly electricity annually. This made it an important pillar of the energy supply system in southern Germany and it supplied around a quarter of the electricity generated in Bavaria overall before unit B was decommissioned. In line with the Atomic Energy Act, unit B was permanently decommissioned at the end of 2017. The licence for dismantling unit B according to the Atomic Energy Act was granted by the Bavarian State Ministry of the Environment and Consumer Protection in March 2019. Unit C will continue to produce electricity until the end of 2021.

Interim storage facility and technology centre since 2006

In addition to units B and C, an interim storage facility is located at the site where spent fuel elements are kept in CASTOR containers. It was commissioned in 2006 and has space for up to 192 containers. The storage facility was transferred to the Gesellschaft für Zwischenlagerung mbH (BGZ – an organisation for interim storage) on 1 January 2019, in line with The German Act on the Reorganisation of Responsibility in Nuclear Waste Management.

In 2006, the Gundremmingen Technology Centre in the former turbine house of the 250-megawatt unit Gundremmingen A (operational from 1966 to 1977) was approved by the Bavarian Ministry of the Environment. Here, plant components that are removed from the nuclear power stations can be dismantled, cleaned and prepared for disposal.

Large number of jobs

RWE Nuclear GmbH employs more than 500 people in Gundremmingen. In addition, there are jobs at partner companies who work onsite on a permanent basis – as well as at suppliers and service providers in the region. 


Facts and figures

Power plant location

Gundremmingen, Bavaria



Power plant type

Boiling-water reactor

Area of use

Baseload, flexible load following

Commissioned in



Uranium dioxide and mixed oxide

Electrical output (net)

1,288 MW

Reactor pressure

70.60 bar

Steam temperature

286 °C

Fuel weight

approx. 136 t


Natural-draft wet cooling tower

Fuel elements per unit


Annual electricity production

approx. 10 billion MWh (10 TWh)

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RWE Nuclear GmbH

Gundremmingen nuclear power plant

Dr.-August-Weckesser-Str. 1
89355 Gundremmingen

T: +49 (8224) 78-1 (switchboard)
F: +49 (8224) 78-2900