Zinc battery storage provider Eos signs agreement for >1GWh of projects with developer Hecate Energy

LinkedIn
Twitter
Reddit
Facebook
Email
Image: Eos Energy Storage via Facebook.

Eos Energy Storage has signed an agreement to deploy “more than 1GWh” of its aqueous zinc chemistry battery energy storage systems worth around US$250 million with US-based project developer Hecate Energy.

Eos designs, integrates and manufactures energy storage systems based around its proprietary battery chemistry, which plates and replates zinc on the batteries’ electrodes, and claims the technology provides low-cost, medium to long-duration energy storage with minimal degradation of battery cells for a 15 to 30-year lifetime using abundant raw materials.

The company said yesterday that it has signed a “broad-ranging agreement” to supply systems, with an estimated value greater than US$250 million to Hecate for projects in Colorado, New Mexico and Texas. Eos will deliver that capacity over the next 24 months for the developer.

In addition to having delivered large-scale solar and wind in three countries for customers that include Google, Hecate Energy has created a dedicated energy storage division, called Hecate Grid, in partnership with InfraRed Capital Partners. As with its renewables projects, Hecate will develop, build, own and operate assets in the utility-scale segment.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

Eos is one of a number of market participants looking to commercialise a novel battery technology centred around a zinc chemistry in competition or complement to lithium-ion and other energy storage.

The technology provider recently claimed big wins with agreements to deploy 1.5GWh of systems for customers in Texas and California and a partnership to work on a few megawatts-worth microgrid projects in Africa, while the company is targeting becoming publicly-listed in the near future through a business combination transaction with special purpose acquisition company B Riley Principal Merger Corp.

15 September 2026
San Diego, USA
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

May 21, 2026
In this US news roundup, OCI Energy, MN8 Energy, GridStor, and Grenergy advance battery energy storage system (BESS) projects in Texas, California, Colorado, and Georgia.
May 20, 2026
Independent power producer (IPP) Sunraycer Renewables has closed a US$901 million project financing facility, supporting three solar-plus-storage projects in Texas, US.
Premium
May 20, 2026
Energy-Storage.news speaks with Moment Energy’s CTO and co-founder Gabriel Soares, and VP of business development, Carl Mansfield, about recent updates from the second life battery company.
Premium
May 20, 2026
Sodium-ion may be increasingly competitive for projects where total lifecycle economics matter more than initial procurement cost alone, the CEO of HyperStrong told us after the system integrator signed a 60GWh supply and co-operation agreement with CATL.
May 19, 2026
Ford Energy, the wholly owned subsidiary of Ford Motor Company and developer EDF power solutions North America have announced a five-year battery energy storage system (BESS) supply agreement.