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Energy-Storage Funding Rises 49% in First Nine Months

Global corporate funding for energy storage reached $16.7 billion during the first nine months of 2026, a 49% increase from the corresponding 2025 period, according to Mercom Capital Group. Its figures cover venture capital, debt financing and financing through public markets.

Mercom’s findings, published on October 30, 2026, recorded 120 transactions, compared with 85 transactions worth $11.2 billion a year earlier. The company put the increase in deal volume at 41% and said the nine-month transaction count exceeded those recorded in the previous four years.

Announced financing through debt and public markets amounted to $11.4 billion from 41 transactions, according to Mercom. That represented a 36% increase in funding against the $8.4 billion recorded through 29 transactions during January through September 2025.

Within the 2026 figures, public-market financing accounted for approximately $6.7 billion from 20 transactions. Debt financing contributed another $4.7 billion through 21 deals, according to the company’s breakdown.

Venture funding reached $5.4 billion through 79 transactions over the nine-month period. Mercom put the year-on-year funding increase at 93%, with the comparable 2025 figures standing at $2.8 billion and 56 transactions.

Among the venture-funding categories Mercom tracked, downstream energy-storage businesses ranked first by amount received, at approximately $1.8 billion. Other categories among the leading recipients were thermal storage, iron-air and lithium-based batteries, materials and components, and metal-hydrogen batteries.

Mercom’s ranking of the five biggest venture transactions placed Base Power first with $1 billion, followed by Form Energy with $750 million. Antora Energy’s round amounted to $550 million, while the rounds for Sila Nanotechnologies and EnerVenue Holdings each totaled $300 million.

According to Mercom CEO Raj Prabhu, much of the increase in funding came from a limited number of transactions with large values, while the increase in transaction activity extended across the sector.

* This article is based on publicly available information at the time of writing.