Form Energy closes US$40 million funding round for its long-duration storage

By John Parnell
LinkedIn
Twitter
Reddit
Facebook
Email

Form Energy has closed a US$40 million Series B funding round led by Eni Next, the venture capital vehicle of Italian oil firm Eni.

Several Series A investors have returned, including Breakthrough Energy Ventures (BEV), the coalition of investors that includes Bill Gates, Jack Ma and Richard Branson. Prelude Ventures, MIT’s The Engine and Macquarie Capital were among those to back both rounds as well.

Capricorn Investment Group was another standout new investor.

The fresh funding will be used to create a megawatt-scale prototype.

This article requires Premium SubscriptionBasic (FREE) Subscription

Enjoy 12 months of exclusive analysis

  • Regular insight and analysis of the industry’s biggest developments
  • In-depth interviews with the industry’s leading figures
  • Annual digital subscription to the PV Tech Power journal
  • Discounts on Solar Media’s portfolio of events, in-person and virtual

Or continue reading this article for free

Form Energy, whose origins are in MIT, is developing a low-cost, long-duration battery storage system. More precise details on the technology are few and far between. Marco Ferrara, co-founder of Form Energy has previously said that the system will be capable of several days’ worth of discharge.

Speaking with the Enel Foundation, which has supported the company, Ferrara said: “We are developing meaningful scale prototypes and testing the technology in our labs. At the same time, we are working with Enel and Enel Green Power in understanding the value of this technology. In two or three years, we will be ready to deploy the first pilot projects in the field.”

11 November 2025
San Diego, USA
The 2024 Summit included innovative new features including a ‘Crash Course in Battery Asset Management’, Ask-Me-Anything formats and debate-style sessions. You can expect to meet and network with all the key industry players again in 2025 from major US asset owners, operators, RTOs and ISOs, optimizers, software and analytics providers, technical consultancies, O&M technology providers and more.

Read Next

August 8, 2025
Utility Portland General Electric (PGE) announced the completion of three battery energy storage systems (BESS) totalling more than 1.9GWh in Portland, Oregon, US.
August 8, 2025
Ampyr Australia has officially started construction on its 300MW/600MWh Wellington Stage 1 BESS in New South Wales.
August 8, 2025
Australian energy major AGL Energy has confirmed that two transformers for the 1,000MWh Liddell battery energy storage system (BESS) in New South Wales have been delivered.
August 7, 2025
Energy storage developer and system integrator Energy Vault has received approval to pursue market-based participation in the California Independent System Operator (CAISO) with the Calistoga Resiliency Centre (CRC).
August 7, 2025
Calibrant, a joint venture between Green Investment Group and German engineering company Siemens, has energised and begun generating Value of Distributed Energy Resources (VDER) credits from three front-of-the-meter battery energy storage systems (BESS) in New York, US.

Most Popular

Email Newsletter