Eos Energy Enterprises Receives $87 Million Advance Under U.S. Department of Energy Loan to Fund Second Production Line at Thorn Hill
DOE loan funding reimburses prior Thorn Hill investments and supports Eos’s ramp toward 4 GWh of annual U.S. battery manufacturing capacity.
Rhea-AI Summary
Eos Energy Enterprises (EOSE) received an $87 million first advance under the second tranche of its U.S. Department of Energy loan to fund its Thorn Hill battery manufacturing facility in Warrendale, Pennsylvania.
The advance reimburses 80% of eligible costs for the Thorn Hill facility and brings total draws under the DOE loan to approximately $178 million since 2024. Line 2 at Thorn Hill entered commercial production in June 2026 and is ramping toward its designed annual capacity of about 2 GWh. Following the planned, lender‑approved relocation of Line 1 to Thorn Hill, the site is expected to support around 4 GWh of annual battery manufacturing capacity across two lines, with staffing anticipated across four shifts.
Positive
- $87 million first advance under second tranche of DOE loan
- Total DOE loan draws now approximately $178 million since 2024
- Loan reimburses 80% of eligible Thorn Hill facility costs
- Thorn Hill expected to reach about 4 GWh annual capacity across two lines
- Line 2 in commercial production, ramping toward 2 GWh annual capacity
- Company expects to staff Line 2 with jobs across 4 shifts
Negative
- None.
News Explained
The advance returns previously invested Line 2 capital to the balance sheet, while the planned 4 GWh two-line configuration remains conditional on lender approvals.
Eos has received the
The release describes the funding as a DOE loan advance reimbursing
As of
The material resolution item is lender approval and completion of the Line 1 relocation; until then, the disclosed completed steps are the received advance and Line 2 commercial production, not full two-line operation.
Sources and calculations
- Eos Energy Enterprises DOE loan advance release (2026-09-14)
- Eos Energy Enterprises second-quarter 2026 fundamentals (2026-06-30)
- Available liquidity against the last reported quarterly operating outflow, in days at that rate $305,491,000 / ($72,018,000 / 91) = 386 days
Key Figures
- DOE loan advance
- $87 million
- First advance under the second tranche
- Eligible cost reimbursement
- 80%
- Thorn Hill facility costs
- Total DOE facility drawn
- $178 million
- Since 2024
- Line 2 commercial production
- June 2026
- Thorn Hill manufacturing facility
- Line 2 annual capacity
- 2 GWh
- Designed annual manufacturing capacity
- Thorn Hill annual capacity
- 4 GWh
- Planned capacity across two lines
Historical Context
-
Thorn Hill consolidation targeted approximately 4 GWh across two manufacturing lines.
24h Move is the share-price change in the day after each event; other market factors may also have contributed.
Key Terms
long-duration energy storage technical
tranche financial
AI-generated analysis. How Rhea-AI works. Not financial advice.
First advance under second tranche brings total drawn under the DOE facility to
PITTSBURGH, Sept. 14, 2026 (GLOBE NEWSWIRE) -- Eos Energy Enterprises, Inc. (NASDAQ: EOSE) (“Eos” or the “Company”), America’s leading innovator in designing, manufacturing, and providing zinc-based long-duration energy storage (LDES) systems sourced and manufactured in the United States, today announced it has received an
The advance reimburses
Line 2 entered commercial production in June 2026 and is being ramped toward its designed annual manufacturing capacity of approximately 2 GWh. Upon completion of the planned relocation of line 1 to Thorn Hill, subject to lender approvals, Eos expects Thorn Hill to support approximately 4 GWh of annual manufacturing capacity across two lines.
“Loan funding from the Office of Energy Dominance Financing has been critical in scaling Eos,” said Alessandro Lagi, Chief Financial Officer of 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.”
“Running two lines under one roof drives more efficient use of our engineering, support resources, and labor,” said John Mahaz, Chief Operating Officer of Eos. “This enables the operation to increase productivity and optimize manufacturing cost.”
Eos expects to create jobs across 4 shifts to staff Line 2 in the Western Pennsylvania facility. The line continues to ramp toward full production as additional shifts come online, consistent with the Company’s phased manufacturing scale-up strategy.
About Eos Energy Enterprises
Eos is accelerating the shift to American energy independence with positively ingenious solutions that transform how the world stores power. The Company’s BESS features the innovative Znyth™ technology, a proven chemistry with readily available non-precious earth components, that is the pre-eminent safe, non-flammable, secure, stable, and scalable alternative to conventional technology. The Company’s BESS is ideal for utility-scale, microgrid, commercial, and industrial long-duration energy storage applications (i.e., 4 to 16+ hours), and provides customers with significant operational flexibility to effectively address current and future increased grid demand and complexity. For more information about Eos (NASDAQ: EOSE), visit eose.com.
Contacts
Investors: ir@eose.com
Media: media@eose.com
Forward Looking Statements
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include, but are not limited to, statements regarding the expected use and benefits of the loan proceeds; the continued development, installation, startup, operation, and ramp-up of Line 2; the expansion and scaling of Eos’ manufacturing operations and domestic manufacturing capacity; the timing and achievement of targeted production levels and annual manufacturing capacity; the anticipated staffing, hiring, and job creation associated with Line 2; the availability of future advances under the DOE-guaranteed loan facility; the receipt of any required lender or governmental approvals; and Eos’ ability to execute its growth strategy, and other statements that are not historical facts. The words "anticipate," "believe," "continue," "could," "estimate," "expect," "intend," "may," "might," "plan," "possible," "potential," "predict," "project," "should," “target,” “will,” "would" and similar expressions may identify forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking. Forward-looking statements are based on our management’s current expectations and assumptions and are subject to risks and uncertainties that could cause actual results to differ materially from those expressed or implied by such statements.
Important factors that could cause actual results to differ materially include, among others, risks relating to Eos’ ability to satisfy the conditions applicable to future advances under the DOE-guaranteed loan facility; complete, commission, operate, and ramp Line 2 on the anticipated schedule and within the applicable budget; achieve targeted production rates, staffing levels, hiring objectives, and manufacturing capacity; manage construction, equipment, supply-chain, labor, startup, and operational risks; obtain and maintain required governmental and third-party approvals; comply with the DOE loan documents and other financing arrangements; maintain adequate liquidity and secure additional financing when needed; realize anticipated manufacturing efficiencies, productivity improvements, cost benefits, and operational synergies associated with consolidating manufacturing activities; and scale manufacturing operations, and other risks described in Eos’ filings with the Securities and Exchange Commission (“SEC”).
Additional information concerning these and other risk factors is contained in the Company’s filings with the SEC, including its most recent Annual Report on Form 10-K and subsequent Quarterly Reports on Form 10-Q and Current Reports on Form 8-K.
Forward-looking statements speak only as of the date they are made. Should one or more of these risks or uncertainties materialize or should any of our assumptions prove incorrect, actual results may vary in material respects from those projected in these forward-looking statements. Readers are cautioned not to put undue reliance on forward-looking statements, and, except as required by law, the Company assumes no obligation and does not intend to update or revise these forward-looking statements, whether as a result of new information, future events, or otherwise.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What does the new DOE loan advance specifically cover for Eos?
The $87 million first advance under the second tranche reimburses 80% of eligible costs associated with Eos’s Thorn Hill manufacturing facility in Warrendale, Pennsylvania. The company said this returns capital previously invested in Line 2 to its balance sheet, providing more room to invest in the business while maintaining what it describes as a disciplined growth approach.
How is Eos scaling production at the Thorn Hill facility?
Line 2 at Thorn Hill entered commercial production in June 2026 and is ramping toward an annual capacity of about 2 GWh. Eos plans, subject to lender approvals, to relocate Line 1 to Thorn Hill so the site can support approximately 4 GWh of annual capacity across two lines. The company expects to create jobs across 4 shifts to staff Line 2 as part of a phased manufacturing scale-up strategy.