US Energy Storage Market to Grow 21%
The U.S. energy storage market is projected to grow by 21% in 2026, despite facing policy headwinds. The growth is primarily driven by strong demand for batteries for grid-scale projects and other clean energy initiatives. This trend is relevant for corporate finance and investment analysis within the renewable energy sector.
- The projected growth in 2026 is expected to involve $25.2 billion in capital investment, with total annual installations reaching 35 gigawatts/70 gigawatt-hours (GWh). Of this, the utility-scale segment is forecast to account for 62.4 GWh, while behind-the-meter applications will make up the remaining 7.3 GWh. - Key state markets, including California, Texas, and Arizona, accounted for 74% of installed capacity in 2025 and are expected to continue leading deployment. California leads with a cumulative 59,815 MWh of storage capacity, followed by Texas at 26,271 MWh. - The global benchmark levelized cost of electricity (LCOE) for a four-hour battery storage project fell by 27% year-over-year in 2025 to a record low of $78 per megawatt-hour. This decline is attributed to lower battery pack prices, increased competition, and improved system designs. - Major corporations in the U.S. market include Tesla, LG Energy Solution, Samsung SDI, General Electric, and BYD, who collectively held over 40% of the market share in 2024. - Policy headwinds include supply chain constraints related to tax incentives that can exclude Chinese modules. To navigate this, some Chinese manufacturers are expected to restructure ownership to meet requirements and regain U.S. market access. - The growth is also driven by rising electricity demand from data centers and the need to improve the reliability of an aging grid infrastructure. As of mid-2025, operational large-scale battery storage in the U.S. surpassed 38 gigawatts, a significant increase from less than 2 gigawatts in 2020. - In 2025, 51% of newly installed storage capacity was standalone, while 48% was paired with solar generation and 1% with wind. Long-duration energy storage, which can discharge for more than eight hours, is a growing segment critical for grid stability with high renewable penetration. - The residential storage market is also expanding, driven by falling lithium-ion battery costs, increased rooftop solar installations, and homeowner demand for backup power during more frequent grid disruptions from extreme weather.
