Chubu Electric Power commissioned the repowered Keta Power Station on September 2, 2025, and on the same day its retail subsidiary launched a multi-offtaker physical PPA supplying the hydropower plant’s output to five companies.
According to Chubu Electric Power Miraiz, which serves as the retailer sleeving the PPA, total supply under the 20-year scheme is expected to reach about 17GWh annually. The output will be delivered to JTEKT and its unit JTEKT Gear Systems, Soken Chemical & Engineering, Daiwa Can, and Hiraiwa Iron Works. Separate announcements suggest Soken will procure about 1.7GWh and Daiwa Can 3.4GWh of the total. The remaining offtakers did not disclose further details.
The run-of-river Keta Power Station originally began operations in June 1929. In addition to extending its useful lifetime, the repowering project also led to a capacity increase from 2.6MW to 2.87MW.
Japan Energy Hub’s database shows that Chubu Electric Power Miraiz has announced participation in over 30 deals as the retailer sleeving delivery. Most involve solar generation but the company has also structured multi-offtaker virtual agreements for the newly built 7.8MW Abegawa hydropower plant, the 15MW Aoyama Kogen Wind Farm expected to be repowered in 2027, and the 52.7MW Fukuyama Biomass Power Plant.
The Keta scheme is Soken Chemical & Engineering’s first-known PPA. JTEKT previously signed a 4.5MWAC physical off-site PPA with Tekoma Energy and an 11.9MWDC virtual deal with PHOTON CAPITAL. Daiwa Can has launched a pair of solar PPAs expected to provide about 11.3GWh annually and is also participating in Chubu Electric Power Miraiz’s biomass scheme. Hiraiwa procures power through multiple small-scale on- and off-site PPAs.
