PowerX to Build New BESS Factory in Hokkaido to Expand Production Capacity

PowerX has announced plans to establish a new battery energy storage system (BESS) manufacturing facility in Hokkaido, Japan, as part of its strategy to scale production and support the country’s growing renewable energy market. 

The new facility, named “Power Base Hokkaido,” will be located in Tomakomai City and is expected to begin operations in June 2027. Once fully operational, the plant will have an annual production capacity of approximately 2 GWh, producing large-scale BESS units such as the company’s Mega Power 2500 system. 

The investment is designed to address rising demand for grid-scale battery storage, driven by the increasing share of renewable energy in Japan’s power mix. By expanding manufacturing capacity, PowerX aims to support grid stabilization and improve the integration of intermittent energy sources such as solar and wind. 

In addition to boosting output, the new factory serves several strategic objectives, including geographic diversification to reduce natural disaster risks and optimization of logistics costs through proximity to key transportation hubs such as ports and airports. 

The Hokkaido facility will initially operate with a single production line, with the flexibility to expand to multiple lines in the future. The company is also exploring the possibility of manufacturing additional products, including its scalable modular data center solutions, at the same site. 

This project is part of PowerX’s broader plan to build a multi-site manufacturing network across Japan. Together with its existing facilities in Okayama Prefecture and partner factories, the company aims to significantly increase its total production capacity in the coming years to meet both domestic and international demand for energy storage systems. 

Looking ahead, PowerX expects the new factory to play a key role in accelerating renewable energy deployment in Hokkaido, a region known for its strong renewable resource potential. The initiative also aligns with Japan’s long-term goal of achieving carbon neutrality, as energy storage becomes increasingly critical for ensuring a stable and resilient power system.