Eos Energy secured a 228 MWh order from Frontier Power, the first conversion under its 5 GWh framework agreement announced in April 2025. The order will deploy Eos’s Z3 zinc‑based battery systems and DawnOS battery‑management platform.
The deployment supports grid reliability projects under Ofgem’s Cap‑and‑Floor program, which has advanced 11 GWh of long‑duration projects to the second round. Frontier Power’s use of Eos technology underscores the growing demand for safe, non‑flammable chemistry in large‑scale storage.
Eos also completed its final cash‑receipt milestone with Cerberus Capital Management, concluding the Delayed Draw Term Loan financing structure. The milestone confirms the company’s ability to draw the remaining tranches of the $200 M investment, strengthening its balance sheet and reducing future capital‑raising uncertainty.
In Q2 2025, Eos reported record revenue of $15.2 million, a 46 % increase from the prior quarter and a 17‑fold increase year‑over‑year, while posting a $31 million gross loss. The company reaffirmed its 2025 revenue guidance of $150 million to $190 million, indicating that the Frontier order aligns with its growth targets.
Eos’s Z3 system offers 4 to 16+ hours of storage, positioning it as a scalable alternative to lithium‑ion for long‑duration applications. The company’s American manufacturing and zinc‑based chemistry provide safety and sustainability advantages that appeal to UK grid operators.
The combination of the Frontier order and the Cerberus milestone reinforces Eos’s deployment strategy and financial flexibility, supporting future expansion in the UK and other markets.
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