美国电池储存市场刚刚公布了有史以来最大的季度，在Q2 2026年增加了20.2千兆瓦小时的新容量。
根据太阳能工业协会(SEIA)和基准测试矿产情报公司(基准测试 Mineral Intelligence)推出的新的“美国能源储存市场展望 ”，创纪录的季度将2026年上半年的电池储存设施总量提高到了30.8千兆赫(每年增加23% )。
通用电池驱动记录
几乎所有的增长来自大型电网电池。 公用事业规模项目占Q2装置的约18个GWh，得到7个千兆瓦时级项目的支持——亚利桑那州4个，加利福尼亚州2个，犹他州1个。
仅亚利桑那州就增加了创纪录的6.2GWh，是有史以来一个州记录得最强的季度。 德克萨斯州增加了3.8GWh，加利福尼亚州又安装了3.6GWh. 在季度安装的公用设备中，44%与太阳能配对，56%为独立储存。
这很重要，因为当电力充足且相对便宜时，电池可以充电，然后当需求和价格上升时，电池可以发回电网。 在极端高温期间，储存的电力能够帮助覆盖夜晚太阳产出下降但空调需求仍然很高的时段。
根据报告，2026年头八个月，电池储存向美国电网提供的电力比2025年全年都多。
称 Tim Pawlenty), SEIA总裁兼首席执行官。
储存增长超过加利福尼亚州和德克萨斯州
在Q2 2026安装的美国电池存储容量有74%以上在各州，唐纳德·特朗普在2024年总统选举中获胜，亚利桑那州，德克萨斯州和犹他州领先。
SEIA也称指出，在特朗普政府执政的前18个月，美国公用规模的电池容量从88GWh增长到165GWh. 这些数字显示了何时何时何地投入服务，但报告并没有将单个项目投资决定归责于某一行政部门。
称 Shan Tomouk, BESS & Energy Lead at 基准测试 Minerals. “我们看到亚利桑那州、内华达州、俄勒冈州、科罗拉多州和其他几个州的输油管增长强劲。”
需求比之前的预期提前了，因此基准测试融资到2030年的存储预测为11.5%，到683 GWh. 超过10%的美国电池储存能力
家用电池有一个粗糙的四分之一
住宅电池储存量少得多。 美国家庭在Q2中增加了657兆瓦时的电池，年均下降27%。
报告将下降部分归因于取消联邦25D型住宅清洁能源税收抵免，部分归因于房主在奖励改革之前将设施赶入2025年。
基准测试仍然认为，随着电力成本的上升、净计量规则的改变、停电仍然令人关切，公用事业扩展了虚拟发电厂和需求响应方案，家庭电池就是一个长期问题。 但预测住宅设施在2025年跳出56%后，2026年下降16%.
在问题2期间，商业和工业储存增加了大约1.8GWh。 基准测试预计数据中心将成为未来需求的一个主要来源，因为开发商将电池与现场太阳能，风能，以及在某些情况下天然气发电结合起来，围绕电网限制开展工作并管理快速变化的电荷。
美国的电池制造也在该季度有所扩大。 特斯拉在德克萨斯州带来了它的第三个"巨型"(Megafactory)，能够每年出产50GWh的"巨型"(Megapacks)，并开始运送含有国内制造的锂铁磷酸电池的"巨型"(Megapacks).
NeilMx的顶级评论
真可惜住宅电池有下降希望他们能接住
我认为，这是有用的，家庭可以养活自己，必要时在正确的价格支持电网。 我不是一个慈善机构
基准测试现在预计美国将在2026年安装约71个GWh的电池存储量 — — 比2025年增加约20 % — — 因为公用事业和电网运营商竞相跟上不断增长的电力需求。
更多信息：七分之一的美国学生现在上太阳能学校
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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.
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.
Top comment by NeilMx
It's a shame, that residential batteries had a drop. Hopefully they will pick up.
I think it's useful, that homes can support themselves, and if necessary at the right price support the grid. Heh I am not a charity 😉
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.
Read more: 1 in 7 US students now goes to a solar-powered school
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