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中电联：我国电化学储能向集中式、大型化发展 利用率显著提升
Xin Hua Cai Jing·2025-03-31 02:04

Core Insights - The Chinese power industry is experiencing significant growth in electrochemical energy storage utilization rates, with average operating hours, utilization hours, and charge-discharge cycles all showing substantial increases in 2024 compared to 2023 [1][2] Group 1: Industry Statistics - In 2024, the average operating hours reached 1,649 hours, an increase of approximately 510 hours or 45% year-on-year [1] - The average utilization hours were 911 hours, up about 300 hours or 49% from 2023 [1] - The average equivalent charge-discharge cycles were 221 times, an increase of 59 times or 39% year-on-year [1] - By 2024, the installed capacity of large-scale energy storage stations (over 100 MW) accounted for 65% of the total, a 14% increase year-on-year [1] - Among newly added energy storage stations, large-scale installations made up 74.16% [1] - By the end of 2024, the cumulative installed capacity of new energy storage projects reached 73.76 million kW (168 million kWh), with an average storage duration of approximately 2.3 hours, representing a 130% increase compared to the end of 2023 [1] Group 2: Policy and Technological Developments - Since the beginning of 2024, over 700 policies related to energy storage have been issued in China, covering development planning, electricity price reform, and demonstration applications [2] - The trend towards larger-scale electrochemical energy storage is becoming increasingly evident, with innovations in new energy storage technologies [2] - New technologies such as 300 MW compressed air storage, 100 MW flow battery storage, and 10 MW flywheel storage projects have been successfully integrated into the grid [2] - Diverse applications for energy storage are accelerating, with rapid development in power source, grid side, and commercial and industrial storage [2] - The continuous improvement in the scheduling and utilization levels of new energy storage in China effectively promotes renewable energy consumption and supports the stability of the power system [2]