Eos Energy Enterprises, Inc. — FY2021 Form 10-K
Business context and reporting period. This annual report covers the fiscal year ended December 31, 2021; it is not a quarterly report. Eos designs and manufactures zinc-based battery energy storage systems, primarily for utility and commercial and industrial customers. The company remains in early commercialization and is scaling manufacturing of its Gen 2.3 product. In April 2021, it acquired the remaining 51% of its manufacturing joint venture, HI-POWER.
Key financial metrics
| Metric | FY2021 | FY2020 |
|---|---|---|
| Revenue | $4.6 million | $0.2 million |
| Cost of goods sold | $46.5 million | $5.5 million |
| Gross loss | $41.9 million | $5.3 million |
| Operating loss | $134.7 million | $38.7 million |
| Net loss | $124.2 million | $70.6 million |
| Loss per share, basic and diluted | $2.36 | $7.51 |
| Net cash used in operating activities | $116.1 million | $26.6 million |
Revenue grew from a very low base as Eos delivered 47 battery cubes to 10 customers in 2021. Cost of goods sold substantially exceeded revenue, reflecting low production scale, manufacturing overhead and scrap while processes were being refined. The filing does not provide a clear positive gross margin; reported revenue and cost of goods sold imply a substantial gross loss.
- Cash and liquidity: Year-end cash and cash equivalents were $104.8 million, down from $121.9 million; restricted cash was $0.9 million. Current assets were $142.6 million and current liabilities $29.9 million.
- Debt and obligations: The balance sheet reported $84.1 million of convertible notes, $18.7 million of notes payable related to the HI-POWER acquisition, and $6.4 million of equipment financing debt. Total liabilities were $136.7 million. The convertible notes had $102.9 million principal including capitalized interest, a 2026 maturity, and 5% cash or 6% in-kind interest terms.
- Cash flows and investment: Investing activities used $23.3 million, including $15.6 million for property and equipment. Financing activities provided $123.3 million, primarily from $100 million of convertible notes, warrant exercises and equipment financing.
Material changes versus the prior comparable period
- Revenue increased by $4.4 million to $4.6 million, while cost of goods sold rose by $41.0 million. Operating loss widened by $96.0 million and net loss increased by $53.6 million.
- Operating cash use rose by $89.6 million. The company cited spending to improve manufacturing quality and processes, research and development, and $15.1 million of payments connected with ending the HI-POWER joint venture agreement.
- R&D expense rose 41% to $19.2 million, and selling, general and administrative expense rose 144% to $43.0 million, including higher staffing, stock compensation and professional costs.
- The company consolidated HI-POWER from April 9, 2021. The acquisition accounting and related termination of the prior agreement contributed a $30.4 million loss on a pre-existing agreement and a $7.5 million loss on remeasurement of the prior investment.
Outlook, risks and unusual items
- Funding and going concern: Management and the auditor disclosed substantial doubt about Eos’s ability to continue as a going concern for the 12 months following issuance of the financial statements. The company said it would need additional financing or expenditure reductions by later in the second half of 2022 if funding was not secured. It had passed Part I of a Department of Energy loan-program application, but funding was not assured.
- Management plans: Eos expected 2022 capital expenditures of approximately $25–$35 million and planned to expand annual manufacturing capacity from approximately 260 MWh to 800+ MWh. These are forward-looking targets, not reported results.
- Execution and market risks: The company identified manufacturing scale-up, cost reduction, production quality, customer adoption, converting backlog to revenue, supply-chain disruption, project permitting and grid-connection delays, and continued access to capital as material risks. It relies on a single manufacturing site.
- Controls: Management and Deloitte concluded internal control over financial reporting was ineffective at year-end because of material weaknesses, including inadequate segregation of duties, journal-entry review and management review controls. Remediation was ongoing.
- Contingency: The Department of Justice was investigating possible past underpayment of customs duties; no complaint had been filed as of the report date. Eos accrued $0.4 million for the probable loss.
- Unusual earnings items: Net loss included a $17.5 million gain from changes in fair value of an embedded conversion feature, a $1.3 million PPP loan-forgiveness gain and $2.2 million of income from selling state tax attributes. These items should be considered alongside operating cash use and the underlying operating loss.
- Customer concentration: Two customers accounted for 36.8% and 21.4% of 2021 revenue. The filing also reports that 2021 customer concentration creates exposure if major customers delay or reduce orders.
Important facts for investors to verify
- Whether Eos secures additional financing, including the status and terms of any Department of Energy loan or other funding, and how this affects the going-concern risk.
- Whether manufacturing expansion reaches the stated 800+ MWh annual capacity target, with improved yields, quality and unit costs.
- Whether orders and reported backlog convert into shipments, recognized revenue and customer cash collections; the provided filing text does not give a clear backlog value.
- How gross loss, operating cash burn and cash runway evolve, including capital spending and debt service requirements.
- Progress remediating the disclosed material weaknesses and any developments in the customs-duty investigation.
- The terms, conversion or repayment outcomes of the Koch convertible notes and HI-POWER acquisition notes, plus any resulting dilution.