Funding of Project Finance for Four Battery Energy Storage Projects in Hokkaido and Mie
HEXA Energy Services G.K. hereby announces that on March 31, 2026, loan facilities were disbursed for four grid-scale battery energy storage projects under development by the Company—Honeycomb 1 G.K. (Eniwa City, Hokkaido), Honeycomb 5 G.K. (Iga City, Mie Prefecture), Honeycomb 6 G.K. (Matsusaka City, Mie Prefecture), and Honeycomb 9 G.K. (Ishiyama, Shiraoi Town, Hokkaido)—with a combined grid connection capacity of 148 MW, pursuant to the project finance loan agreements previously executed with MUFG Bank, Ltd. and Sumitomo Mitsui Trust Bank, Limited.
As the penetration of renewable energy continues to increase significantly, the Company is committed to its mission of contributing to the stabilization of supply–demand balance in the power system. In support of the decarbonization of generation sources, the Company is actively developing flexibility resources, including grid-scale battery energy storage projects.
These battery energy storage projects were awarded capacity contracts under the FY2023 Long-Term Decarbonization Power Auction.
Including these projects, the Company has been awarded a total of 11 projects, representing an aggregate rated output: 445 MW / energy capacity: 1.9 GWh. The Company remains committed to steadily advancing the development and realization of all awarded projects.
■ Comment from Yoichiro Mizuta, CEO, HEXA Energy Services G.K.
“The execution of this project finance agreement is highly significant, as it reflects the continued recognition by financial institutions of both the commercial viability and the social importance of our grid-scale battery energy storage business, following the successful completion of projects already in operation.
Amid increasing uncertainty surrounding the energy landscape, the role of battery storage in supporting supply–demand balance and enhancing power system stability is becoming ever more critical. Through the steady realization of projects awarded under the Long-Term Decarbonization Power Auction, including this financing, we remain committed to contributing to the development of a sustainable and resilient power infrastructure in Japan.”
■ Comment from MUFG Bank, Ltd.
“This project provides balancing capacity to the power grid, the importance of which is
increasing alongside the expansion of renewable energy, and contributes to the stable operation of the power system.
In this transaction, MUFG Bank structured project finance facilities based on a comprehensive assessment of a stable revenue base under the Long-Term Decarbonization Auction, as well as additional merchant revenue opportunities and operational risks in the electricity market.
Going forward, MUFG Bank will continue to leverage its expertise as a global leader in renewable energy finance to support initiatives that contribute to a virtuous cycle of the environment and the economy through financial solutions, thereby helping to realize a sustainable society.”
■ Comment from Sumitomo Mitsui Trust Bank, Limited
“Sumitomo Mitsui Trust Bank believes that this Battery Energy Storage Projects will contribute to the realization of a sustainable energy society by improving the stability of power system operations through energy storage capabilities.
In addition, this project, implemented through the Long-Term Decarbonization Power Source Auction, represents a positive example of collaboration between government policy and private-sector initiatives, and is consistent with our financing policy, which aims to achieve both social value creation and economic value creation.
We will continue to contribute to the realization of a sustainable society, including the expansion of renewable energy, by leveraging the diverse expertise of our group to help address ESG and SDGs related challenges.”