美国能源信息署：美国电网电池储能容量近三年年均增长70%，2025年底达43.6吉瓦
Battery storage capacity averaged 70% growth over the last three years
美国能源信息署称，美国公用事业级电池储能容量过去三年年均增长70%；截至2025年底，已投运容量为43.6吉瓦。2026年前六个月新增8.3吉瓦，名义容量接近52吉瓦；运营商计划未来两年半再新增54吉瓦，其中2026年下半年14吉瓦、2027年26吉瓦、2028年14吉瓦。报告还介绍了太阳能配储项目及其按电价高低储存、放电的运作方式。
材料提供美国电网电池储能容量增长及运营商新增计划的规模数据，并说明太阳能配储可在不同电价时段存储和放电。
In-brief analysis
August 7, 2026
Utility-scale battery storage capacity in the United States increased significantly during the last three years, with an annual average growth rate of 70%. By the end of 2025, the U.S. power system had operational battery storage capacity of 43.6 gigawatts (GW). During the first six months of 2026, operators added another 8.3 GW of battery storage capacity, reaching nearly 52 GW of nameplate battery storage capacity, based on our latest Preliminary Monthly Electric Generator Inventory.
Operators anticipate bringing an additional 54 GW of battery storage capacity online over the next two and half years, according to plans they report to us. Plans for additional capacity coming online in the second half of this year total 14 GW. Operators currently plan to add 26 GW in 2027 and 14 GW in 2028.
Solar photovoltaic (PV) plants host the largest battery storage capacity units. The Bellefield Solar and Energy Storage Farm, which began operations in December 2025, couples 500 megawatts (MW) of photovoltaic capacity with 500 MW of nameplate power storage for the California Independent System Operator (CAISO). Plans for the Bellefield facility call for a doubling of the PV and storage capacity of the facility and for the new capacity to be operational by November this year. If those plans materialize, the facility will become the largest power storage facility in the United States. The Manatee Solar Energy Center in Florida, operational since 2021, has 75 MW of solar capacity and 409 MW of battery storage capacity; it is the second-largest battery storage project. The Gemini Solar Hybrid in the state of Nevada has 690 MW of photovoltaic capacity along with power storage capacity of 380 MW, which became operational in 2024.
Solar photovoltaic and storage facilities enable operators to store power when wholesale electricity prices are low and discharge electricity when prices are high, allowing power producers to capture larger profits.
Principal contributors: EIA Staff
来源：美国能源信息署 · 能源市场分析 · eia.gov