# DOE Advances $87M for Pennsylvania Battery Line

The U.S. Department of Energy advanced Eos Energy Enterprises $87 million to reimburse eligible costs for its second zinc-battery production line at the Thorn Hill manufacturing facility in Warrendale, Pennsylvania. Line 2 entered commercial production in June 2026 and is ramping toward 2 GWh of annual capacity. The payment is a draw under an existing DOE loan facility—not a new solicitation—and supports domestic, non-lithium long-duration energy storage manufacturing.

- The advance returns capital already invested in Line 2 to Eos’s balance sheet; the company had drawn approximately $178 million under the loan facility since 2024.
- For energy procurement teams and contractors, the expansion signals added potential domestic zinc-battery production capacity that may be relevant to future storage sourcing and project planning.
- Companies should distinguish this financing milestone from an open contracting opportunity: the signal identifies no new solicitation or proposal deadline.

**Jurisdictions:** federal
**Industries:** Energy & Utilities
**Topics:** Grants & Funding
**Published:** October 18, 2026

### Government Entities
- U.S. Department of Energy (DOE)
- Office of Energy Dominance Financing (EDF)
- DOE Loan Programs Office (LPO)

### Vendors
- Eos Energy Enterprises (DOE loan recipient)

### Key Quotes
> Loan funding from the Office of Energy Dominance Financing has been critical in scaling Eos. This advance reimburses a significant portion of the investment we have already made in Line 2 and returns that capital to the balance sheet, giving us more room to invest in the business while maintaining a disciplined approach to growth.
> — Alessandro Lagi, Chief Financial Officer of Eos Energy Enterprises

### Sources
- [DOE loan advance funds zinc battery line in Pennsylvania](https://gcn.com/doe-loan-zinc-battery-pennsylvania/22573) - gcn.com