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Get filing alertsEos Energy draws $87M third advance under DOE-guaranteed loan to fund Thorn Hill line 2
Filed September 14, 2026 · Period ending September 10, 2026 · ~1 min read
Key Changes
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Received $87 million first advance under the second tranche of its DOE loan agreement, reimbursing 80% of eligible costs for the Thorn Hill manufacturing facility.
Exhibit 99.1 view on EDGAR → -
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Total drawn under the DOE facility now approximately $178 million since 2024.
Exhibit 99.1 view on EDGAR → -
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Thorn Hill expected to support approximately 4 GWh of annual manufacturing capacity across two lines once line 1 is relocated, subject to lender approvals.
Exhibit 99.1 view on EDGAR → -
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Line 2 entered commercial production in June 2026 and is ramping toward its designed annual capacity of approximately 2 GWh.
Exhibit 99.1 view on EDGAR → -
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Third advance of $87,018,601 funded on September 10, 2026 under the FFB Promissory Note, bringing total funded advances to $178.0 million against the facility's up to $277.5 million maximum principal amount.
Item 2.03 verify on EDGAR →
Summary
Eos Energy Enterprises drew an $87 million advance under its DOE-guaranteed loan facility, the first under the second tranche, to fund its second production line at the Thorn Hill manufacturing facility. The advance brings total DOE facility draws to approximately $178 million since 2024. Line 2 entered commercial production in June 2026 and is ramping toward its designed annual capacity of approximately 2 GWh.
Upon completion of the planned relocation of line 1 to Thorn Hill, subject to lender approvals, Eos expects the site to support approximately 4 GWh of annual manufacturing capacity across two lines. The filing is a routine disclosure of a loan advance under an existing facility. No red flags are identified. The company continues to access committed capital to scale its manufacturing operations.
Section-by-Section Diff
Event · Item 2.03 — Creation of a Direct Financial Obligation
Item 2.03 — Creation of a Direct Financial Obligation filed; see Key Changes for terms.
Added in current filing · verify on EDGAR →
On August 24, 2026, the Company delivered to the DOE and the FFB a third advance request, and on September 10, 2026, the FFB funded $87,018,601 under the FFB Promissory Note (the “third loan advance”).
The Company requested and received a third advance of $87,018,601 under its existing FFB Promissory Note, which is guaranteed by the DOE. This brings total funded advances to $178.0 million against the facility's $277.5 million maximum principal amount, leaving roughly $99.5 million of principal capacity plus up to $25.95 million of capitalized interest.
Event · Item 7.01 — Regulation FD Disclosure
Eos Energy announced a third loan advance under its Cerberus delayed draw term loan via a press release furnished as Exhibit 99.1.
Added in current filing · verify on EDGAR →
On September 14, 2026, the Company issued a press release announcing the third loan advance.
The company disclosed a third loan advance under its Cerberus delayed draw term loan. The 8-K itself does not provide the amount or terms of the advance; those details are in the attached press release (Exhibit 99.1), which is not included in the body text provided.
Event · Exhibit 99.1
Added in current filing · view on EDGAR →
Eos has now drawn a total of approximately $178 million of its DOE facility since 2024.
The company has drawn approximately $178 million from its DOE facility since 2024. This provides context on the cumulative funding received under the loan agreement.
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Figures/quotes linked to EDGAR · Narrative written by AI · Sep 14, 2026 · How we verify