Stonepeak and CHC bag deals for 348 MW battery storage projects in Japan - Asian Power
Published November 28, 2025
Stonepeak and CHC Secure Agreements for 348 MW Battery Storage Initiatives in Japan
Stonepeak Infrastructure Partners and CHC have successfully finalized agreements for the development of two significant battery storage projects in Japan, with a combined capacity of 348 megawatts (MW). These projects are part of a broader initiative to enhance energy storage capabilities in the country, aligning with Japan's commitment to renewable energy and sustainability.
Under the terms of the agreements, Stonepeak and CHC will collaborate to implement advanced battery storage technologies that are crucial for integrating renewable energy sources, such as solar and wind, into Japan's power grid. The storage systems are designed to provide essential services, including load shifting, frequency regulation, and energy arbitrage, thereby optimizing the use of renewable energy and improving grid reliability.
The two projects, located in different regions of Japan, will utilize lithium-ion battery technology, which has become the standard for large-scale energy storage solutions due to its efficiency and scalability. The first project will have a capacity of 200 MW, while the second will contribute an additional 148 MW. Together, these facilities are expected to play a vital role in Japan's energy transition, helping to reduce reliance on fossil fuels and support the country's ambitious carbon neutrality goals.
Japan has been actively investing in energy storage solutions as part of its strategy to enhance energy security and transition to a low-carbon economy. The country aims to achieve a target of 36-38% of its electricity generation from renewable sources by 2030. Battery storage projects like those being developed by Stonepeak and CHC are integral to meeting this objective, as they facilitate the effective use of intermittent renewable energy sources.
The collaboration between Stonepeak and CHC is part of a growing trend in the renewable energy sector, where partnerships are essential for leveraging expertise and resources. Stonepeak, known for its focus on infrastructure investments, brings a wealth of experience in managing large-scale energy projects, while CHC contributes its specialized knowledge in battery technology and operations.
The introduction of these battery storage projects is expected to have a significant impact on the local economies where they are situated. In addition to creating jobs during the construction and operational phases, the projects will also enhance the resilience of the power grid, which is particularly important in a country that has experienced natural disasters in the past.
As Japan continues to pursue its energy transition, the role of battery storage will become increasingly critical. The ability to store excess energy generated during peak production times and release it during periods of high demand is essential for maintaining grid stability. This is especially relevant in Japan, where energy supply must be carefully managed to prevent outages and ensure reliability.
The agreements for the 348 MW battery storage projects are a clear indication of the growing importance of energy storage in Japan's renewable energy landscape. With the government promoting policies that support the development of such technologies, the future looks promising for battery storage initiatives in the region.
In conclusion, the successful agreements between Stonepeak and CHC mark a significant step forward for battery storage projects in Japan. As the country seeks to enhance its energy resilience and transition to a more sustainable energy system, these initiatives will play a crucial role in shaping the future of energy in Japan.
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