The world's largest single-site electrochemical energy storage power station was connected to the grid on December 30, 2025. The Envision Jingyi Chagan Hada Energy Storage Power Station has a total installed capacity of 4 GWh and is fully equipped with Envision's AI-based energy storage system. 3 (Chunhui Substation) Demonstration Project -- was successfully put into operation. Led by Shenzhen Power Supply Bureau and jointly developed by. . AKSU, China, Nov. 8, 2024 /PRNewswire/ -- On November 8, the country's largest single grid-type energy storage project, the Xinhua Wusi 500,000 kW/2 million kWh grid-type energy storage project, which is the first 250,000 kW/1 million kWh lithium iron phosphate battery energy storage project to be. . Energy Dome began operating its 20-megawatt, long-duration energy -storage facility in July 2025 in Ottana, Sardinia. In 2026, replicas of the system will begin popping up on multiple continents.