Energy storage funding hit $2.3b in Q1 2026 as VC activity strengthens

VC funding reached $1.2b across 26 deals.

Energy storage companies raised $2.3b across 38 deals in first quarter of 2026 (Q1 2026), up 5% year-over-year from $2.2b in 31 deals in Q1 2025, according to Mercom Capital Group.

Venture capital funding reached $1.2b across 26 deals, a 9% increase in capital and a 44% rise in deal count compared to Q1 2025.

Amongst 14 tracked categories, energy storage downstream companies attracted the largest share of VC funding in Q1 2026. Other active segments included metal-hydrogen batteries, lithium-based battery developers, energy storage systems, materials and components suppliers, and battery recycling firms.

The top five venture capital deals of the quarter were led by EnerVenue Holdings, which raised $300m, followed by terralayr with $223m, Liminal Energy with $200m, Waaree Energy Storage Solutions with $111m, and Lunar Energy with $102m.

Debt and public market financing totaled $1.1b across 12 deals, down 3% YoY from $1.13b in Q1 2025.

Corporate mergers and acquisitions in the energy storage sector increased significantly, with seven companies acquired in Q1 2026, compared to just one acquisition in Q1 2025.

Transactions spanned the value chain, including downstream platforms, battery technologies, and materials, reflecting broad strategic interest in the sector.

Energy storage project acquisitions jumped to 7.2 GW, a 227% increase YoY, driven by standalone battery storage and hybrid solar-plus-storage projects.