Eurus Energy Holdings and Yachiyo Green Energy will jointly develop an approximately 8MW portfolio of high-voltage solar power plants that will be aggregated by the former’s parent company Toyota Tsusho, the companies announced on January 19, 2026.
According to the statement, the two companies will aim to build 28 sub-1MW projects primarily in the Kanto area through their 50:50 joint venture YTS-Solar. Toyota Tsusho will offtake the plants’ output and sell the environmental value to corporate offtakers and the power to retailers. The assets are expected to come online gradually, starting from April 2026.
The companies did not disclose further details about the planned PPA structures. METI data shows Eurus Energy Holdings, its subsidiary Eurus Green Energy, and Yachiyo Green Energy’s parent company Yachiyo Engineering as power retail license holders, allowing them to potentially sleeve physical PPAs, as well as buy the projects’ output from Toyota Tsusho and resell it to their customers under their retail plans.
Eurus Energy holds stakes in about 2GW of operational domestic projects including over 1.2GW of wind, 735MW of solar, and 50MW of biomass. The company has recently also been developing grid-scale battery storage. The majority of its solar portfolio was originally owned by Terras Energy, a Toyota Tsusho subsidiary it absorbed in April 2025.
Yachiyo Green Energy has primarily been developing solar power plants. METI data shows that as of the end of December 2025, it owned eight operational assets under the feed-in-tariff (FIT) scheme totaling 4.24MWAC/4.75MWDC alongside 13 under-development projects totaling 4.3MWAC/6MWDC, mostly in the Tokyo TSO area.
