ČEZ signed an early works contract with Rolls-Royce SMR for the proposed construction of a 470 MWe SMR at Temelin, announced approximately April 28-29, 2026 (World Nuclear News). In October 2024 Rolls-Royce SMR was selected by ČEZ to deploy up to 3 GW of electricity in the Czech Republic, and ČEZ took a 20% stake in Rolls-Royce SMR. In April 2025, ČEZ selected Amentum to deliver environmental impact assessment reports for Rolls-Royce SMRs at Temelin and the Tušimice coal plant (due for retirement in 2030). ČEZ plans the first SMR at Temelin by 2032, with a target of ten units by 2050. ČEZ and Rolls-Royce SMR also plan to cooperate on SMR projects in the Czech Republic, UK, and internationally under their strategic partnership. First Deputy PM Karel Havlíček: "Small modular reactors represent a technological opportunity with a European impact and a chance for Czech companies." A separate estimate (ANS, September 2025) suggested a future four-unit deployment near Temelín could add approximately 1,880 MW in total — this remains a long-term ambition, distinct from the approximately 470 MW first unit under contract via the April 2026 Early Works Contract. Update (October 13, 2026): ČEZ submitted the environmental impact assessment documentation for the Temelín SMR to the Ministry of the Environment and expects the review to finish by the end of 2027. World Nuclear News identifies the reactor as Rolls-Royce SMR's roughly 470 MWe pressurised water design, notes that ČEZ holds a 20% stake in Rolls-Royce SMR, and reports that a memorandum with the Ministry of Industry and Trade covers possible future sites at Tušimice and Dětmarovice.