JERA and ENEOS Power have signed an implementation agreement to jointly develop and operate the new Units 1 and 2 of the Sodegaura thermal power station in Chiba Prefecture, Japan (JERA press release, 06/11/2026). Each unit will have a capacity of about 870 MW, with operation planned from 2032 (Unit 1) and 2033 (Unit 2). The project will be held by a joint venture, that will owned by JERA Power Investment (a wholly owned JERA subsidiary) with 66% and by ENEOS Power with 34%.
The units will be LNG-fired gas turbine combined cycle plants with a gross thermal efficiency of about 64% (lower heating value). The companies will explore hydrogen and carbon capture and storage (CCS) to reduce CO2 emissions further.
The units are part of a wider plan to phase out the existing Units 1–4 and build New Units 1–3, about 2,610 MW in total. Unit 3 is not covered by this agreement and is planned to start operating in 2041.
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