Paks nuclear power plant, Hungary
ŠKODA JS has been a supplier of the Paks NPP in Hungary since the nuclear power plant’s construction in 1980-1987. There are four units operated at the power plant, with all of them successfully running VVER 440 / V-213 reactors produced and supplied by ŠKODA JS. Over the years, we have supplied control rod drives, intermediate rods, tensioners and neutron in-core measurement channels to the power plant. We have also performed regular servicing of the supplied equipment, especially control rod drives.
In 2016-2021 we carried out replacement of the instrumentation and control systems at all four units of Paks NPP. This was a very interesting and extensive “turn-key” modernization project. ŠKODA JS replaced the previous reactor control systems, reactor rod control systems and shutdown switches with modern, digital equipment. Our company acted as the general contractor and creator of both basic and detail design concepts. We applied our ability to effectively manage projects in an international environment, with deliveries by a Czech company and activities provided by Hungarian companies integrated into a single supply chain management model.
In June 2018, the Unit 3 at Paks NPP underwent modernization. The trial run of the commissioned units confirmed the reliability and safety of our equipment. In mid-2019, ŠKODA JS completed the modernization, and the final modifications of the nuclear power plant simulator for staff training and the units unification were completed in 2021.
ŠKODA JS won the tender for the supply of KNI neutron flux measurement equipment in 2021. As part of the contract, ŠKODA JS will supply 156 KNI detectors to the customer as a basic range, with a possible option for a further 46 units of this equipment. The KNI equipment manufactured and supplied by ŠKODA JS operates reliably not only at the Paks NPP, but also at other VVER 440 and VVER 1000 power plants.
At the end of 2021, ŠKODA JS was successful in a tender for the manufacture and supply of intermediate rods for the reactor control drives. This is one of the company’s top products for the reliable operation of VVER 440 reactors.
The history of our cooperation
The timeline of our cooperation with Paks NPP
1980-1987 construction of Paks NPP:
ŠKODA JS in the role of supplier of components, including the production and supervision of reactor assembly at all four units
2011-2012we supplied 83 control rod drives
2008we supplied the MKM-3 control rod drive tension meter and the EZ 650 reactor flange joint stud tensioner
2016-2020ŠKODA JS acts as the general supplier of the turnkey project “Paks NPP Instrumentation and Control System Replacement.“