US Energy Storage Monitor
The U.S. energy storage market reached another milestone, installing a record 18.9 GWh of battery energy storage systems in Q2 2026
U.S. Energy Storage Market Posts Record 18.9 GWh in Q2
Delivered quarterly, the US Energy Storage Monitor from the American Clean Power Association (ACP) and Wood Mackenzie Power & Renewables provides the clean power industry with exclusive insights through comprehensive research on energy storage markets, deployments, policies, regulations and financing in the United States.
The U.S. energy storage market reached another milestone, installing a record 18.9 GWh of battery energy storage systems in Q2 2026, according to the latest U.S. Energy Storage Monitor report released by ACP and Wood Mackenzie.
This momentum was driven by a shift toward longer-duration storage systems and stronger residential capacity, highlighting the growing value of energy storage as a technology that can deliver capacity to help meet the speed and reliability needs of our grid.
The energy storage market expanded 17% year-over-year, despite an overall 7% decline in installed power capacity in Q2. Utility-scale installations reached 4.7 GW/17.6 GWh, and the market is expected to continue expanding, with utility-scale storage projected to see an average annual increase of 8% over the next five years.
Report Highlights:
- The U.S. installed 5.4 GW/18.9 GWh of battery energy storage systems in Q2 2026.
- Total GW installations down 7%, but GWh up 17% year-over-year. A new record.
- National average duration of systems increased from 2.8 hours to 3.5 hours year-over-year.
- Annual US energy storage installations to grow over 50% in MW terms over the next five years, reaching 207 GW/715 GWh installed cumulatively by 2031.
The report also includes key quarterly trends and analysis on impactful market regulation, policy, system prices, and supply chain across all segments. The report provides industry professionals with actionable and intelligent insights to better inform business decisions.
The new US Energy Storage Monitor | Q3 2026 was released September 22, 2026.
Pricing List
| 1 Report | Yearly Subscription (4 reports) |
|
| ACP members |
$3,000 |
$9,000 |
| Non-members |
$5,000 |
$14,000 |
Get the data needed to support your business by purchasing the report.
ACP Members get discounted access to the full report using a code found in an email on June 25 or March 19 from [email protected]. For access to the ACP member coupon code, please email this address.
Not an ACP member? Join now.
To redeem the yearly subscription, please contact Wood Mackenzie.
About the U.S. Energy Storage Monitor
The US Energy Storage Monitor is offered quarterly in two versions – the executive summary and the full report.
- The executive summary is complimentary to member companies and provides a bird’s eye view of the U.S. energy storage market and the trends shaping it.
- In contrast, the full report features state-by-state breakdowns and analysis on storage deployments, growth forecasts, policies helping or hindering growth, financing trends, and market strategies. It is available individually each quarter or as part of an annual subscription.
About Wood Mackenzie Power & Renewables
Wood Mackenzie, a Verisk Analytics business, is a trusted source of commercial intelligence for the world’s natural resources sector. We empower clients to make better strategic decisions, providing objective analysis and advice on assets, companies and markets. For more information, visit: www.woodmac.com or follow on Twitter @WoodMackenzie.
This page was last updated June 23, 2026
