On April 11, China’s first 600MW coal-fired molten salt energy storage project completed performance tests and officially commenced operation at Longshan Power Plant of CHN Energy Hebei Branch.

As a key scientific initiative of CHN Energy, the 3.2-billion-RMB project spans approximately 7,900 square meters. It employs multi-source steam extraction and distribution control technology, marking China’s first large-scale molten salt storage system capable of both peak shaving and load regulation. Using molten salt as a heat storage medium, the system stores energy during off-peak grid hours and releases it during peak demand, enhancing grid stability. Post-operation, the plant’s peak-shaving capacity has increased by 100MW, with peak-load regulation boosted by 30–60MW, enabling annual integration of approximately 520 million kilowatt-hours (kWh) of new energy.

This pioneering project demonstrates the viability of integrating molten salt storage with coal-fired power generation at scale, providing critical technical support for building a clean and low-carbon modern energy system.