Renewables.digital currently lists 3 renewable energy transactions in Japan between April 2026 and July 2026, with a combined capacity of 929 MW. By technology: Onshore Wind (2) and Battery Storage (BESS) (1). The most active companies are BayWa r.e. AG (1), Chugoku Electric Power Co Ltd and Toda Corp (1), Energy Vault Holdings, Inc. (NYSE: NRGV) (1) and Mitsui OSK Lines Co Ltd and Hokutaku Co Ltd (1). The most recent deal is “TerraWind Renewables Acquires 25 MW Onshore Wind Project in Fukushima Prefecture, Japan” (27 July 2026).
| Date | Transaction | Technology | Capacity | Country | Buyer | Seller |
|---|---|---|---|---|---|---|
| TerraWind Renewables Acquires 25 MW Onshore Wind Project in Fukushima Prefecture, Japan | Onshore Wind | 25 MW | Japan | TerraWind Renewables Inc. | – | |
| Energy Vault Acquires 850 MW BESS Development Portfolio in Japan from BayWa r.e., Entering Japanese Market | Battery Storage (BESS) | 850 MW | Japan | Energy Vault Holdings, Inc. (NYSE: NRGV) | BayWa r.e. AG | |
| Chugoku Electric Power and Toda Corp Acquire Stake in 54 MW Masuda-Hikimi Wind Project in Shimane Prefecture, Japan | Onshore Wind | 54 MW | Japan | Chugoku Electric Power Co Ltd and Toda Corp | Mitsui OSK Lines Co Ltd and Hokutaku Co Ltd |
TerraWind Renewables Inc. has completed the acquisition of a 100% interest in a 25 MW onshore wind project in Fukushima Prefecture, Japan. Construction is scheduled to begin in Q4 2026 with commercial operation targeted for Q1 2029. The acquisition expands TerraWind's Japanese onshore wind portfolio to 376 MW.
Energy Vault Holdings has closed the acquisition of an 850 MW battery energy storage development portfolio in Japan from BayWa r.e. AG, including an experienced local development team. The portfolio comprises 350 MW of advanced-stage projects (NTP expected H2 2027, COD from mid-2028) and 500 MW of early-stage projects. The deal brings Energy Vault's global owned asset base to over 1 GW.
Chugoku Electric Power Co Ltd and Toda Corp have acquired an undisclosed equity stake in the 54 MW Masuda-Hikimi Wind Power Project in Shimane Prefecture, Japan, from Mitsui OSK Lines and Hokutaku. The project features 13 wind turbines of 4.2 MW each and is developed through SPC Asia Wind Power. Construction is set to begin shortly, with operations scheduled for January 2030.
Data as of 30 September 2026. The overview covers the transactions currently listed in the Renewables.digital database; each deal links to its original public source.