---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-26-061689"
form_type: "8-K"
ticker: "EOSE"
cik: "0001805077"
company_name: "Eos Energy Enterprises, Inc."
filed_at: "2026-09-14T12:31:39+00:00"
generated_at: "2026-09-14T12:35:26.506936+00:00"
event_type: "debt"
sentiment: "positive"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Eos gets $87M DOE loan advance; total drawn $178M for Thorn Hill expansion

## Summary
- Received $87.0M first advance under second tranche of DOE loan (total drawn ~$178M since 2024).
- Advance reimburses 80% of eligible costs at Thorn Hill facility in Warrendale, PA.
- Line 2 entered commercial production June 2026; ramping toward 2 GWh annual capacity.
- Plans to relocate line 1 to Thorn Hill, targeting ~4 GWh total capacity across two lines.
- Company expects to create jobs across 4 shifts to staff Line 2.

## SEC filing metadata
- accession: 0001628280-26-061689
- form_type: 8-K
- ticker: EOSE
- cik: 0001805077
- company_name: Eos Energy Enterprises, Inc.
- filed_at: 2026-09-14T12:31:39+00:00
- event_type: debt
- sentiment: positive
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 2.03, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1805077/000162828026061689/0001628280-26-061689-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1805077/000162828026061689/eose-20260910.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-26-061689
- JSON: https://secwatch.observer/filing/0001628280-26-061689.json
- Plain text: https://secwatch.observer/filing/0001628280-26-061689.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.