Eos Energy Draws $87 Million DOE Loan to Scale Zinc-Based Storage

DOE Loan Facility Supports LDES Manufacturing

Eos Energy Enterprises (EOSE) has successfully drawn US$87 million from its US Department of Energy (DOE) loan facility. This significant financial milestone indicates that the zinc-based battery manufacturer has met the stringent disbursement conditions tied to construction progress and production ramp-up at its financed manufacturing plant.

Scaling Non-Lithium Technologies

The drawdown of these funds is a critical step in supporting the scaling of non-lithium long-duration energy storage systems in the United States. By leveraging federal loan facilities, the DOE is actively de-risking the commercialization of alternative battery chemistries that are essential for grid resilience. Zinc-based batteries, in particular, offer a compelling value proposition for long-duration applications due to their safety profile, abundant materials, and cost-effectiveness over extended discharge cycles.

The draw indicates the zinc-based battery manufacturer met disbursement conditions tied to construction progress or production ramp at its financed plant, supporting the scaling of its non-lithium long-duration energy storage systems.

Integration with Major Renewable Projects

This manufacturing scale-up aligns perfectly with growing deployment demands. For instance, Eos Energy is contributing 10 MW / 100 MWh of zinc-based long-duration storage to the Mammoth Solar project in West Virginia, a partnership between Google and MN8 Energy. The Mammoth project combines 86 MW of solar capacity with Eos's storage technology, with deployment phased from 2028 to 2030.

Such policy-backed financial mechanisms are vital for bridging the gap between technological innovation and commercial deployment. The $87 million injection not only secures Eos's manufacturing capabilities but also ensures that critical components will be available for upcoming utility-scale projects. As hyperscalers and utilities increasingly seek multi-day storage solutions, government-supported scaling of domestic LDES manufacturing will be instrumental in meeting future grid requirements and achieving national clean energy targets.

This article was assisted by AI analysis. Please refer to the original source for official information.