NTT Anode Energy ordered Power X battery systems for six of the 15 high-voltage (sub-2MW) grid-scale storage facilities it plans to commission in FY2025 and FY2026, the manufacturer announced on June 3, 2025.
The NTT subsidiary will use three containerized Mega Power units at 2MW/8.2MWh assets it plans to build in Hakodate City, Hokkaido; Kannonji City, Kagawa Prefecture; Misawa City, Aomori Prefecture; Noshiro City, Akita Prefecture; Nomi City, Ishikawa Prefecture; and Kainan City, Wakayama Prefecture. NTT Anode Energy previously said the former two are scheduled to be completed in FY2025, with the remainder set for FY2026 commissioning.
Prior to the latest order, NTT Anode Energy also used the same hardware at the 2MW/8.2MWh Fukuoka Wakamatsu Power Storage Station, which it commissioned in Kitakyushu City in April 2025.
The company has five other operational high-voltage storage assets including the 1.4MW/4.2MWh Tagawa Power Storage Station developed jointly with Kyushu Electric Power and Mitsubishi Corporation, the 2MW/9MWh Tsumagoi Power Storage Station developed jointly with TEPCO, and three facilities in Saitama Prefecture.
Its development pipeline includes two extra high-voltage projects totaling 160MWh, one each in Hokkaido and Tochigi, that it aims to commission in FY2028, alongside the 15 high-voltage projects.
Since its founding in March 2021, Power X has emerged as a key BESS supplier in Japan. While most of its projects are high-voltage, and consist of three Mega Power units, the company has also secured orders for larger-scale assets including Tokyo Century and JFE Engineering’s planned 20MW/79MWh facility in Hokkaido.
