(SeaPRwire) – SINGAPORE, April 06, 2026 — Kingdom, a battery energy storage system (“BESS”) platform founded by the alternative investment firm Stonepeak, today announced the closing of its inaugural long-term project finance facility. The loan is for its Mimasaka project, a 29MW battery energy storage facility located in Mimasaka, Okayama Prefecture, Japan. MUFG Bank, Ltd. served as the original lender and mandated lead arranger. The project will utilize batteries supplied by CATL, the global leader in battery manufacturing.
In Japan, Kingdom owns and operates a portfolio of nine BESS projects. Each project has secured a 20-year revenue capacity market contract, awarded during the initial two rounds of Japan’s Long-term Decarbonization Auction. This portfolio represents a total gross capacity of 479MW. The Mimasaka project is the first among them to achieve project financing.
“Kingdom is dedicated to helping Japan achieve its energy transition objectives,” stated Jay Guo, Chief Executive Officer of Kingdom. “We are thrilled to begin this partnership with CATL and MUFG, as we continue to rapidly advance the development of the rest of our BESS portfolio.”
“We are pleased to complete this milestone transaction, which solidifies Kingdom’s role as a major participant in Japan’s energy storage sector,” added Ryan Chua, Senior Managing Director at Stonepeak. “We anticipate moving more projects to financial close and into construction to support Japan’s energy transition goals.”
About Kingdom
Headquartered in Singapore with offices in Tokyo and Chengdu, Kingdom is a BESS project development company. It manages the entire project lifecycle to build, own, and operate BESS assets in Japan and other markets, aiming to drive the energy transition and enhance the resilience of modern power grid systems.
About Stonepeak
Stonepeak is a premier alternative investment firm focused on infrastructure and real assets, managing approximately $84 billion in assets. The firm invests in defensive, hard-asset businesses worldwide, seeking to generate value for its investors and portfolio companies with an emphasis on capital preservation and robust risk-adjusted returns. As a sponsor of private equity and credit investment vehicles, Stonepeak provides capital, operational assistance, and long-term partnership to foster growth in its core sectors: transport and logistics, digital infrastructure, energy and energy transition, and real estate. Stonepeak is based in New York and maintains offices in Houston, Washington, D.C., London, Hong Kong, Seoul, Singapore, Sydney, Tokyo, Abu Dhabi, and Riyadh. For additional information, visit www.stonepeak.com.
Contacts
Kingdom
Jay Guo / Tian Kai (TK) Ling
corporatecomms@kingdom-bess.com
Stonepeak
Kate Beers / Maya Brounstein
corporatecomms@stonepeak.com
+1 (212) 907-5100
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