Karlsruhe. Block II of the Neckarwestheim nuclear power station (GKN II) was disconnected from the grid last weekend to carry out a scheduled annual revision. Testing and maintenance work in the station are to be carried out during the revision, technical projects implemented and the replacement of fuel elements.
"Safe operation of our nuclear power stations is still given top priority. This applies to the nuclear power stations that have now been taken out of service and to our KKP 2 and GKN II production facilities. The facility in Neckarwestheim reliably covers the electricity needs of around 3 million private households in Baden-Württemberg around the clock“, explains Christoph Heil, Technical Director of the Neckarwestheim nuclear power station. "We have invested more than 540 million Euros over the years in GKN II alone. This extensive modernisation management will also be continued in this year's revision."
Around 1,300 additional specialists support revision work
The range of work for the revision consists of around 3,000 individual tasks in total. "Most of these tasks are ones that are only possible with the facility shut down", reports Gerd-Josef Engel, Manager of Block II. "We are carrying out inspection work on one of the four steam generators, replacing pipelines in two of the four secondary cooling water circuits and subjecting the feed water tank to an internal test. One of the three feed water pumps and one of the three main condensate pumps will be given a general overhaul. We will also be completing the connection of the new traction electricity inverter to the high voltage grid." The Neckarwestheim revision team will be supported by around 1,300 additional employees from manufacturing and specialised companies for implementation of the programme.
The revision work will be supervised by the Baden-Württemberg Ministry for the Environment, Climate and Energy Management and will be accompanied by ministry auditors from TÜV and KeTAG (Baden-Württemberg auditors consortium for nuclear technology).
Block II of the Neckarwestheim nuclear power stations is a pressurised water reactor with an electrical output of 1,400 megawatts. The facility went into operation in the year 1989 and produced around eleven billion kilowatt hours of electricity in the year 2010.
Block II is operated by EnBW Kernkraft GmbH (EnKK). EnKK operates the nuclear power stations in Neckarwestheim and Philippsburg as well as the nuclear power station in Obrigheim which is currently being removed from service.