Taiwan-based HD Renewable Energy won five grid-scale battery storage projects totaling about 300MW/1.5GWh (253MW derated) in Japan’s second long-term decarbonization auction (LTDA), it said on May 6, 2025.
OCCTO’s results published on April 30, 2025, show that special purpose companies (SPC) associated with HD Renewable Energy, including Star No. 1 LLC, Star No. 2 LLC, and Star No. 4 LLC, were awarded 18.5% of the 1.37GW (derated) awarded to BESS projects.
The projects include one 6-hour-or-longer 92.5MW (derated) asset in Aomori Prefecture and four three-to-six-hour facilities, approximately 40MW each. Two of the shorter duration projects are in Aomori, one in Fukushima, and one in Hokkaido. All five projects will receive capacity payments for 20 years.
HD Renewable Energy, through its SPC Battery Park 1 LLC, also won two projects totaling 97.9MW (73MW derated), one each in Mie and Fukushima, in the inaugural LTDA. It aims to commission both in 2027.
In addition to its LTDA projects, HD Renewable Energy teamed up with Tokyu Land on a facility in Gunma Prefecture, which was awarded 1.19 billion yen through Tokyo Metropolitan Government’s subsidy scheme. The company also acquired majority interest in a 50MW/104MWh project in Hokkaido from Brawn Capital and partnered with Sun Village to develop 13 high-voltage, 2MW/8MWh projects in Tokyo and Chubu TSO areas.
HD Renewable Energy aims to develop 3GW of projects in Japan, including 400MW of solar and 2.6GW of BESS. Beyond project development, it partnered with Mitsubishi Electric to form an aggregation joint venture to expand its energy services business in the country.
