Eos Energy Enterprises Inc (NASDAQ: EOSE) is a battery energy storage company that manufactures and sells turnkey zinc-based battery energy storage systems (BESS) for utility-scale and commercial applications. Revenue comes from the sale of DC battery energy storage systems, with the Z3 battery module as the primary product as of FY2025. The company operates one manufacturing facility in Turtle Creek, Pennsylvania, with a second facility in Warrendale, Pennsylvania expected to become operational in 2026. Its primary geographic market is North America. Eos competes against lithium-ion and flow battery system suppliers in the stationary energy storage market. The company entered a DOE Loan Facility providing up to $303.5 million in funding, closed November 26, 2024, to support expansion of manufacturing capacity to 8 GWh by 2027 under Project AMAZE. The Z3 platform uses zinc halide chemistry, introduced commercially in Q3 2023, and the company launched DawnOS, an integrated software platform for BESS management, in 2025.

Revenue model

Transactional product sales of turnkey DC battery energy storage systems to utility, renewable energy, and commercial and industrial customers. No subscription or royalty model is described in the FY2025 10-K filing.

Products and services

Z3 battery modules using Znyth zinc halide chemistry; turnkey DC BESS; DawnOS software platform for battery management (introduced 2025); plans to expand into turnkey AC systems.

Customers and end markets

Utility grid operators integrating renewable energy; off-grid renewable energy deployments; C&I customers managing peak demand or participating in ancillary and demand-response markets; data center and AI/HPC infrastructure operators requiring mid-duration (6-12 hour) storage.

Value-chain role

Vertically integrated manufacturer of zinc-based battery modules and complete BESS; raw material sourcing (zinc halide salts, felt, resin, titanium, conductive polymer); in-house software (DawnOS); direct sale of turnkey systems.

Geographic exposure

North America primary market as of FY2025 10-K filing dated 2026-02-26. Manufacturing in Turtle Creek, Pennsylvania and Warrendale, Pennsylvania.

Competitors

lithium-ion battery system suppliers, flow battery system suppliers

Source: SEC 10-K, filed 2026-02-26

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