Corporate funding for energy storage companies, including venture capital (VC), debt, and public market financing, reached $8.9 billion across 73 deals in the first half of 2026, a 2% decrease compared to $9.1 billion across 55 deals in the first half of 2025. Despite continued policy, trade, and supply chain uncertainty, deal activity increased 33%, reflecting resilient investment activity across a broader range of transactions.
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VC funding for energy storage companies in 1H 2026 totaled $1.6 billion across 51 deals, representing a 6% YoY decline compared to the $1.7 billion raised across 36 deals in 1H 2025.
Energy Storage Downstream companies attracted the most VC funding among 15 categories in 1H 2026. Other leading categories included Metal-Hydrogen Battery, Li-based Battery companies, Battery Recycling, Energy Storage Systems companies, and Materials & Components providers.
The Top 5 Energy Storage VC funding deals in 1H 2026 were by EnerVenue Holdings, which raised $300 million, terralayr with $223 million, Liminal Energy with $200 million, Waaree Energy Storage Solutions with $111 million, and Lunar Energy, which raised $102 million.
Announced debt and public market financing for the Energy Storage sector in 1H 2026 totaled $7.3 billion in 22 deals, a 1% decrease compared to $7.4 billion across 19 deals in 1H 2025.
Corporate M&A activity in the energy storage sector rose sharply in the first half of 2026 with 15 transactions announced, a 275% increase compared to four transactions in 1H 2025. Transactions were spread across the value chain, including downstream platforms, battery technologies, and materials, reflecting growing interest across the sector.
Project acquisition activity accelerated sharply during the first half of 2026, with approximately 14 GW of battery storage capacity changing hands in 63 transactions, compared with 6.1 GW in 31 transactions during the same period in 2025.
To get a copy of the report, visit: https://mercomcapital.com/product/1h-2026-funding-ma-report-energy-storage/
