The adjusted EBITDA loss reached US$68 million, up from US$43.2 million in the same quarter last year.
Eos reaffirmed its 2026 revenue guidance of US$300 million to US$400 million, emphasising its recent formation of Frontier Power USA, with Cerberus Capital Management.
Eos also revealed on 13 May that it and Cerberus intend to capitalise Frontier Power, a purpose-built company tasked with developing and operating a portfolio of LDES projects featuring Eos’ zinc bromide Z3 technology. The entity aims to function as an independent power producer (IPP), marking a shift from equipment supplier to project owner-operator.
A 2GWh firm capacity reservation agreement between Eos and Frontier Power has expanded Eos’ order backlog from its 31 March 2026 baseline. The reserved capacity is earmarked for deployment across three segments—utility-scale installations, AI data centres, and commercial and industrial (C&I) sites—all drawn from Frontier Power’s active multi-gigawatt-hour project pipeline. Private equity firm Cerberus Capital Management is an existing investor in Eos, agreeing on a US$315 million financing package with the battery startup in mid-2024.
In Eos’ Q4 and full-year 2025 financial results, the company’s CEO Joe Mastrangelo expressed disappointment in not meeting revenue expectations and said that 2025 was a “structural turning point” for the company.









