Canadian Solar Inc. (CSIQ) has completed the delivery of its first grid‑connected battery energy storage system (BESS) in Japan. The 2 MW, 8.25 MWh DC system, built on the company’s SolBank platform, was installed adjacent to the Naebo substation in Sapporo, Hokkaido.
The system was delivered to the site in September 2025 and was commissioned in early December 2025, marking the first time Canadian Solar’s battery products have been deployed in the Japanese market.
The project was awarded through the Hokkaido Electric Power Network Company’s 2023 public land leasing initiative and will participate in the Japan Electric Power Exchange (JEPX) and the Balancing Market (EPRX), providing grid flexibility, renewable integration and market stability in the Hokkaido region.
The BESS launch expands Canadian Solar’s global energy‑storage footprint, which has shipped more than 16 GWh worldwide and holds a $3.1 billion backlog of projects, including 81 GWh of planned capacity. In Q3 2025 the company reported $1.5 billion in revenue and 2.7 GWh of energy‑storage shipments, underscoring the rapid growth of its storage segment.
Colin Parkin, President of Canadian Solar and e‑STORAGE, said, "This energy storage project represents a key milestone in Canadian Solar's commitment to supporting Japan's energy transition. e‑STORAGE is proud to deliver a reliable, market‑responsive solution that strengthens grid resilience." He added, "Looking ahead, we remain committed to providing high‑quality energy storage solutions that meet the evolving needs and regulatory requirements of the Japanese market."
Canadian Solar’s Wide Area Management Certificate in Japan demonstrates its ability to navigate the country’s stringent environmental and lifecycle‑management regulations, positioning the company to deliver turnkey solutions in a highly regulated environment.
The deployment signals Canadian Solar’s intent to deepen its presence in Japan’s growing storage market, where the integration of renewable energy sources is a national priority. The company’s continued investment in U.S. manufacturing capacity and its expanding backlog suggest a strategy focused on scaling its storage business while maintaining strong financial performance.
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