
Green Power Investment submitted the environmental impact assessment methodology document for the approximately 95MW Uwanuma onshore wind project it is developing in Kazuno City, Akita Prefecture, on March 10, 2025.
The project’s footprint has been decreased slightly from the previous stage, its scale remains unchanged. Green Power Investment plans to install between 15 and 22 turbines, 4.2 to 6.1MW each. The project is expected to span about 1,302ha of which 223ha are to be covered by turbines.
Construction is scheduled to begin in January 2030, with commissioning targeted for January 2033.
Green Power Investment has multiple other projects undergoing the EIA process including two in the vicinity: the up to 94.5MW Inaniwa Takko, which is in the environmental impact assessment report stage, and the up to 200MW Hachimantai, which is in the first, primary environmental consideration stage.
The renewables developer and its affiliates have over 250MW of operational wind FIT/FIP capacity and over 1.3GW under development. Planning to expand its portfolio further, Green Power Investment announced the establishment of its second, 61 billion yen wind asset-focused fund. Separately, it is also a member of a JERA-led consortium that was awarded a 615MW project in Japan’s third offshore wind auction.
Non-Green Power Investment projects around Uwanuma include the up to 106MW Kazuno Tobu Shimin Wind Farm, which is in the first stage of the EIA process, and Tohoku Electric Power’s up to 86MW Takko Oguni project, which is in the methodology stage.