美国在短短3个月内新增了创纪录的20.2 GWh电池储能。

美国在短短3个月内新增了创纪录的20.2 GWh电池储能。
The US added a record 20.2 GWh of battery storage in just 3 months

原始链接: https://electrek.co/2026/08/31/the-us-added-a-record-20-2-gwh-of-battery-storage-in-just-3-months/

美国在2026年第二季度新增创纪录的20.2吉瓦时电池储能，使上半年装机量达到30.8吉瓦时，同比增长23%。公用事业规模项目推动了几乎全部增长，新增约18吉瓦时，其中包括亚利桑那州创纪录的6.2吉瓦时，以及德克萨斯州的3.8吉瓦时和加利福尼亚州的3.6吉瓦时。在公用事业规模容量中，44%为太阳能配储，56%为独立储能。2026年前八个月的储能输出超过了2025年全年。第二季度新增容量中，超过74%安装在特朗普2024年赢得的州；公用事业规模容量在其任期前18个月从88吉瓦时增长到165吉瓦时，不过报告未将项目归因于任何一届政府。Benchmark将截至2030年的储能预测上调11.5%，至683吉瓦时。住宅电池表现落后，新增657兆瓦时，同比下降27%，部分原因是取消联邦住宅清洁能源税收抵免。商业和工业储能新增约1.8吉瓦时，数据中心预计将推动未来需求。特斯拉在德克萨斯州开设了一座年产能50吉瓦时的Megafactory。2026年总装机量预计将接近71吉瓦时，比2025年高出约20%。

美国在短短三个月内新增了创纪录的20.2 GWh电池储能，引发了关于电网级储能的广泛讨论。评论者的主要观点： - 电池有助于电网稳定、频率响应和削峰，并正在取代燃气调峰机组；它们还与柴油发电机配合作以提高效率。 - 电网相位/频率挑战受到讨论；伊比利亚半岛停电被归因于电压/无功功率问题，而非惯性。 - 抽水蓄能和飞轮等替代方案面临地理和成本限制。 - 全生命周期的碳强度比较显示电池优于燃气。 - 讨论了中国的能源结构以及可再生能源/电池的快速增长。 - 规模背景：20.2 GWh大约相当于美国平均需求约25分钟，或约5771个集装箱。 - 许可改革和输电容量仍然是关键瓶颈。总体而言，电池在电网可靠性和可再生能源整合中日益重要，尽管仍需大幅增长储能容量。

原文

Utah largest solar battery storage — Photo: rPlus Energies

The US battery storage market just posted its biggest quarter ever, adding 20.2 gigawatt-hours (GWh) of new capacity in Q2 2026.

The record quarter brought total battery storage installations for the first half of 2026 to 30.8 GWh – up 23% year over year – according to the new “US Energy Storage Market Outlook” from the Solar Energy Industries Association (SEIA) and Benchmark Mineral Intelligence.

Utility-scale batteries drove the record

Nearly all the growth came from large grid batteries. Utility-scale projects accounted for about 18 GWh of Q2 installations, supported by seven gigawatt-hour-scale projects – four in Arizona, two in California, and one in Utah.

Arizona alone added a record 6.2 GWh, the strongest quarter ever recorded by a single state. Texas added 3.8 GWh, and California installed another 3.6 GWh. Of the utility-scale capacity installed during the quarter, 44% was paired with solar, while 56% was standalone storage.

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That matters because batteries can charge when electricity is abundant and relatively cheap, then send it back to the grid when demand and prices rise. During extreme heat, that stored electricity can help cover the evening hours when solar output drops but air-conditioning demand remains high.

Battery storage supplied more electricity to the US grid during the first eight months of 2026 than it did during all of 2025, according to the report.

“This record growth highlights that storage is a powerful reliability tool that strengthens our energy security, meets rising demand, and puts downward pressure on electricity bills,” said Tim Pawlenty, president and CEO of SEIA.

Storage growth spreads beyond California and Texas

More than 74% of US battery storage capacity installed in Q2 2026 was in states that Donald Trump won in the 2024 presidential election, with Arizona, Texas, and Utah leading.

SEIA also notes that US utility-scale battery capacity grew from 88 GWh to 165 GWh during the first 18 months of the Trump administration. Those figures show when and where the capacity entered service, but the report doesn’t attribute individual project investment decisions to a particular administration.

“Energy storage is no longer just a California and Texas story anymore,” said Shan Tomouk, BESS & Energy Lead at Benchmark Minerals. “We’re seeing strong pipeline growth in Arizona, Nevada, Oregon, Colorado, and several other states.”

Demand is running ahead of previous expectations, so Benchmark raised its storage forecast through 2030 by 11.5%, to 683 GWh. More than 10% of all US battery storage capacity now operating came online in Q2 alone.

Home batteries have a rough quarter

Residential battery storage saw a much weaker quarter. US homes added 657 megawatt-hours (MWh) of batteries in Q2, down 27% year over year.

The report attributes the decline partly to the removal of the federal 25D residential clean energy tax credit and partly to homeowners rushing installations into 2025 ahead of the incentive change.

Benchmark still sees a long-term case for home batteries as electricity costs rise, net-metering rules change, power outages remain a concern, and utilities expand virtual power plant and demand-response programs. But it forecasts residential installations falling 16% in 2026 after jumping 56% in 2025.

Commercial and industrial storage added approximately 1.8 GWh during Q2. Benchmark expects data centers to be a major source of future demand as developers combine batteries with onsite solar, wind, and, in some cases, natural gas generation to work around grid constraints and manage fast-changing power loads.

US battery manufacturing also expanded during the quarter. Tesla brought its third Megafactory online in Texas, with the capacity to produce 50 GWh of Megapacks annually, and began shipping Megapacks containing domestically manufactured lithium iron phosphate cells.

Benchmark now expects the US to install about 71 GWh of battery storage in 2026 – around 20% more than in 2025 – as utilities and grid operators race to keep up with rising electricity demand.

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