Green Power Investment-affiliated special purpose company (SPC) Green Power Shimokita completed the environmental impact assessment for a 96MW onshore wind project on the border of Yokohama Village, Mutsu City, and Higashidori Village, Aomori Prefecture. It submitted the final assessment on February 2 and received METI approval on February 20, 2026.
According to the document released for public viewing on March 30, 2026, the company plans to install 25 turbines, 4.3MW each, across about 372ha, with their combined output capped due to grid connection size. Construction is expected to begin in April 2026, with commercial operation scheduled to follow in January 2030.
METI data shows the project was certified under the feed-in-tariff (FIT) scheme in FY2016, when 20kW and larger onshore wind assets were offered 22 yen per kWh for 20 years. It is unclear whether the asset will operate under the fixed rate contract or switch to the feed-in-premium (FIP) scheme and sell output through a corporate PPA.
Green Power Investment launched the environmental impact assessment for the Shimokita project in October 2014, aiming to build an approximately 130MW wind farm at the time. The plan was scaled up to up to 140.8MW when it advanced the methodology stage in March 2015. The size was maintained through the draft assessment stage reached in December 2015. The project was transferred to the SPC prior to the final report’s submission.
With the regulation at the time requiring projects to submit a draft assessment prior to applying for a grid connection, Green Power Investment paused development between doing so in 2016 and 2021, when the connection was approved.
The developer and its affiliates hold stakes in over 250MW of operational projects under the FIT and feed-in-premium (FIP) schemes. The company also has several projects, such as the up to 117.6MW Isa-Ebino-Hitoyoshi and approximately 95MW Uwanuma, under development. Green Power Investment is owned by NTT Anode Energy and JERA, which acquired it in 2023 from US-based Pattern Energy.
