Eos Energy Enterprises Inc. (NASDAQ: EOSE) expects to report preliminary first quarter 2026 revenue of $56 million to $57 million, the company announced. The Pittsburgh-based battery energy storage systems manufacturer cited record shipments and manufacturing output in its operational scaling efforts.

The company reported several quarterly records, including a 17% increase in shipments quarter-over-quarter, 10.4% growth in battery output, and 10.6% growth in bipolar output. Bi-polar automation yields improved 22% sequentially, indicating increased process stability and manufacturing consistency.

Eos completed Factory Acceptance Testing for its second production line, with initial production targeted for the end of the second quarter. The new line incorporates a single-piece flow configuration, increased process redundancy, and advanced pick-and-place gantry systems designed to enable faster cycle times.

The company reported operational improvements including an approximately 86% reduction in raw material travel distance across end-to-end operations and a roughly 40% reduction in battery line length through the single-piece flow design.

Eos made two executive appointments during the quarter. Erik Todd joined as Executive Vice President of Sales, bringing more than 20 years of experience leading large-scale energy and infrastructure sales organizations. Cristi Thomas joined as Senior Vice President of Projects & Delivery, with experience in complex infrastructure-scale energy projects.

The preliminary revenue results reflect a higher mix of DC-system projects versus AC-coupled projects, which include additional equipment sales that vary by customer configuration. Eos plans to report full first quarter 2026 financial results in May.

The company designs, sources, manufactures and provides zinc-based battery energy storage systems for utility-scale, microgrid, commercial and industrial applications.