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US battery storage growth sets single-quarter record

  • Mercados: Electricity, Emissions
  • 29/09/25

The US added more battery storage between April-June 2025 than any previous quarter, driven chiefly by new, larger installations.

The US battery storage sector expanded by 5,568MW, with 15,787MWh of dispatchable energy during the second quarter of 2025, increases of 68pc and 36pc, respectively, over the same stretch in 2024, trade group the American Clean Power Association and consultant Wood Mackenzie said in their latest update on the industry. In the process, the sector set a new record for any three-month period to date.

The growth stemmed primarily from the utility-scale segment, which added about 4,900MW and 14,950MWh of dispatchable energy, increases of 63pc and 36pc, respectively, over the second quarter of 2024. Arizona, California and Texas accounted for the bulk of the growth, with each state adding about 1,200MW.

The commercial and industrial segment increased by 11pc from April-June 2024 to 38MW, while the segment's dispatchable energy fell by 5pc to 85MWh. Residential storage rose by 132pc and 40pc, respectively, from the second quarter of 2024 to about 610MW and 750MWh.

The US will add about 19,000MW and 52,500MWh in 2025 at the current pace, a year-over-year rise of 53pc and 45pc.

Between 2025-29, the storage market will remain "resilient to federal policy headwinds" and add around 88,000MW and 281,200MWh, the groups said. While Republicans' recent budget package kept the full investment tax credit for utility-scale storage through 2033, developers must rely on components that meet federal restrictions on sourcing inputs from "foreign entities of concern". Combined with "global trade uncertainty", the larger environment will slow deployment. California and Texas will remain the strongest markets for the technology, joined by any state with favorable policies and escalating load growth.

The groups' "low case" forecast would reduce the 2025-29 outlook by 19pc. In this scenario, the sector would lag due to a limited availability of tax credit-compliant components, US-China trade barriers and federal regulations stymying both renewables and transmission build-outs on public land.


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