ŠKODA JS to Supply Control Rod Drive Mechanisms for Rolls-Royce SMRs
ŠKODA JS has been awarded a contract to supply control rod drive mechanisms for the 470 MWe small modular reactors (SMRs) developed by Rolls-Royce SMR. These mechanisms are critical for controlling reactor power and ensuring safe operation through the precise movement of control rods. Each drive is an electromechanical linear motor, approximately eight meters long and weighing 450 kg, designed to manage the nuclear reactor across all operational modes.
This contract builds on previous collaborations between the two companies. Earlier this year, ŠKODA JS and Doosan Enerbility were selected by Rolls-Royce SMR for pre-production work on key components, including the reactor pressure vessel. This initial phase focused on early supplier engagement, design finalization, and manufacturing readiness to support the timely delivery of the first power from the SMRs.
The partnership between ŠKODA JS and Rolls-Royce SMR is significant for the emerging global supply chain for SMRs. ŠKODA JS is part of the Czech majority state-owned CEZ Group, which also holds a 20% stake in UK-based Rolls-Royce SMR. This collaboration is expected to strengthen energy security and self-sufficiency, create new jobs, and foster further investments.
The first Rolls-Royce SMR unit is planned for construction in North Wales, UK. In the Czech Republic, the first SMR is slated for the Temelín site, with an anticipated operational date in the second half of the 2030s. Plans include an additional five or six units across three sites in the Czech Republic. Rolls-Royce SMR was selected by ČEZ in October 2024 to deploy up to 3 GW of electricity in the Czech Republic. In June 2025, Rolls-Royce SMR was chosen as the UK government's preferred technology for its initial SMR project, with Wylfa on Anglesey, North Wales, identified as the site for three units, potentially accommodating up to eight SMRs. A final investment decision for the UK project is expected in 2029.
ŠKODA JS has extensive experience in nuclear power plant construction and servicing, including manufacturing 21 VVER-440 reactors and three VVER-1000 reactors. The company provides engineering, equipment, and servicing for nuclear power plants, research reactors, and spent nuclear fuel storage facilities across Central and Eastern Europe, Scandinavia, France, Germany, the USA, Austria, Finland, Belgium, the UK, China, and Armenia.