JR-EAST Energy Development and four partners commissioned the 61.1MW Kagurayama Wind Power Plant in Iwaki City and Kawauchi Village, Fukushima Prefecture, on October 1, 2025, the companies announced on December 19, 2025.
According to the statement, the power plant is owned by the special purpose company (SPC) Iwaki Kagurayama Fukko Energy LLC and consists of 16 4.3MW turbines with their combined 68.8MW nameplate capacity capped due to a grid connection limit. It is expected to generate approximately 165GWh annually. METI data shows the project was certified under the feed-in-tariff (FIT) scheme in September 2017, when onshore wind farms were offered 22 yen per kWh for 20 years.
Fukushima Electric Power, a company launched by the prefecture that also received investment from several local municipalities and businesses, previously disclosed that it owns approximately 4.4% of the project and that the overall development cost was expected to reach about 34.7 billion yen. Banei Unso, Kamata Sangyo, and Joban Kosan also hold undisclosed stakes in the power plant.
Kagurayama Wind Power Plant, like the 147MW Abukuma Wind Power Plant, the 40.8MW Kawauchi Onitaroyama Wind Power Plant, and the 15MW Katsurao Wind Power Plant, was spun out of the up to 700MW Fukushima Abukuma wind generation concept, which began environmental impact assessment in 2016. The project completed the process in 2021.
The project is the largest operational wind farm in JR-EAST Energy Development’s portfolio. The company broke ground on the 33.7MW Iwaki Miwa project earlier this year and has other projects under development.
