On the 24th, the State Energy Group announced that the 600-megawatt steam extraction molten salt energy storage project at its Longshan Power Plant in Hebei successfully completed its full-capacity peak trial operation.
Source: Science and Technology Daily
On the 24th, the State Energy Group announced that the 600-megawatt steam extraction molten salt energy storage project at its Longshan Power Plant in Hebei successfully completed its full-capacity peak trial operation. The plant’s peak load stabilized at 650 megawatts, with all operational parameters performing normally. This marks the first coal-fired steam extraction molten salt energy storage project in China, opening up a new technological approach to significantly enhance the peak-shaving capacity of coal-fired power plants. The trial operation has confirmed the project's technical feasibility.
Located in Handan, Hebei Province, the project has a total investment of 320 million yuan. It is the country’s first large-scale energy storage project using multi-source steam extraction and steam distribution control technology. The aim is to improve the power grid's peak-shaving ability, optimize the energy mix, and promote green, low-carbon development. The system uses molten salt as a heat storage medium, storing energy during off-peak periods and releasing it during peak demand, thereby boosting grid stability. Once fully operational, the Longshan Power Plant’s coal-fired units will see their peak-shaving capacity increase by 100 megawatts, with the peak load rising by 30 to 60 megawatts. During deep load adjustment periods, the plant will be able to store and release energy simultaneously, with a maximum steam output of 230 tons per hour.
As a clean, efficient, and environmentally friendly energy storage method, coal-fired coupling molten salt technology offers several advantages, including rapid response times, long lifespan, and low maintenance costs. Once fully implemented, the project is expected to absorb approximately 520 million kilowatt-hours of new energy annually, making a positive contribution to China’s energy transition and improvements in air quality.