As of the end of last year, China's installed capacity of new energy storage increased by 84% compared to the end of 2024.

At a press conference held by the National Energy Administration today, it was revealed that by 2025, China's new energy storage development has achieved solid results, providing strong support for the construction of a new energy system and a new power system. Data shows that by the end of 2025, China's new energy storage installed capacity increased by 84% compared to the end of 2024, with the national newly-built and put into operation new energy storage installed capacity growing more than 40 times compared to the end of the 13th Five-Year Plan, achieving a breakthrough development. The average energy storage duration is 2.58 hours, an increase of 0.30 hours compared to the end of 2024. In terms of regions, the proportion of installed capacity is the highest in North China, where the installed capacity of newly-built and put into operation new energy storage in North China accounts for 32.5% of the national total. In the past year, North China and Northwest China were the main areas of growth for new energy storage, with additional installed capacity of 21.88 million kilowatts and 19.66 million kilowatts respectively, accounting for 35.2% and 31.6% of the national new installed capacity. The trend of large-scale development of projects over 100,000 kilowatts is evident. By the end of 2025, projects with installations of 100,000 kilowatts or more accounted for 72% of the total, an increase of around 10 percentage points compared to the end of 2024; the proportion of new energy storage power stations with a capacity of 4 hours or more gradually increased, reaching 27.6%, an increase of approximately 12 percentage points compared to the end of 2024. In terms of technological routes, lithium-ion battery energy storage still holds the dominant position, with an installed capacity of 96.1%, while compressed air energy storage, liquid flow battery energy storage, and flywheel energy storage account for 3.9% of the installed capacity. Bai Guangqi, Deputy Director of the Energy Saving and Technology Equipment Department of the National Energy Administration, stated that the level of new energy storage utilization has further improved. According to preliminary statistics, the equivalent hours of new energy storage utilization nationwide reached 1,195 hours in 2025, an increase of nearly 300 hours compared to 2024. The equivalent hours of new energy storage utilization in the State Grid and Southern Grid operating areas were 1,175 hours and 1,294 hours respectively. The flexible regulation capability of new energy storage is becoming increasingly prominent, playing an increasingly important role in promoting the development and integration of new energy, enhancing the safe and stable operation of the power system, and ensuring the level of power supply.