Karlsruhe. The shutdown procedure for unit I of Neckarwestheim nuclear power plant (GKN I) and unit 1 of Philippsburg nuclear power plant (KKP 1) started this evening (Wednesday, 16 March 2011) and they were taken offline overnight. EnBW Kernkraft GmbH (EnKK), the operator, had previously received the respective directives from the Ministry for the Environment, Nature Conservation and Transport in Baden-Württemberg. These directives provide for a temporary discontinuation of operation of the plants for a period of three months. The directives were issued with reference to the current events in Japanese nuclear power plants.
EnBW had already announced on Tuesday (15 March 2011) that it was planning to temporarily shut down GKN I on a voluntary basis. On the same day, the Ministry for the Environment, Nature Conservation and Transport in Baden-Württemberg informed us that a non-routine inspection by its supervisory officials at the Philippsburg and Neckarwestheim locations had not identified and safety-related issues.
Following shutdown, the operating status of the plants is similar to that during an inspection.
Unit I of Neckarwestheim nuclear power plant (GKN I) is a pressurised water reactor with an electrical output of 840 megawatts. Commissioned in 1976, the facility produced more than two billion kilowatt-hours of electricity in 2010.
Unit 1 of Philippsburg nuclear power plant (KKP1) is a boiling water reactor with an electrical output of 926 megawatts. Commissioned in 1979, the facility produced more than six and a half billion kilowatt-hours of electricity in 2010.
GKN I and KKP 1 are operated by EnBW Kernkraft GmbH (EnKK). EnKK operates the nuclear power plants in Neckarwestheim and Philippsburg as well as the nuclear power plant in Obrigheim, which is already being dismantled. The Neckarwestheim and Philippsburg locations theoretically produce around half the amount of electricity needed in Baden-Württemberg.