Business Context and Reporting Period
Company: Energy Vault Holdings, Inc. (NRGV)
Filing Type: Form 10-Q (Quarterly Report)
Period Ended: March 31, 2026
Business Overview: Energy Vault is an integrated power infrastructure platform building, owning, and operating flexible energy systems for utilities, independent power producers, and the AI/data center market. The company operates through a technology-agnostic, software-enabled architecture offering energy storage, generation, and management solutions.
Key Financial Metrics
| Metric (in thousands) | Q1 2026 | Q1 2025 |
|---|---|---|
| Revenue | $21,879 | $8,534 |
| Gross Profit | $4,788 | $4,876 |
| Gross Margin | 21.9% | 57.1% |
| Net Loss | $(32,485) | $(21,174) |
| Net Loss Per Share (Basic/Diluted) | $(0.20) | $(0.14) |
| Operating Cash Flow | $(53,797) | $(2,730) |
| Free Cash Flow (Approx.) | $(49,090) | $(9,443) |
| Cash & Cash Equivalents | $55,243 | $17,822 |
| Total Restricted Cash | $61,884 | $29,333 |
| Total Debt (Principal) | $188,243 | $99,583 |
Note: Free Cash Flow calculated as Operating Cash Flow less Capital Expenditures ($7,058k).
Material Changes vs. Prior Period
- Revenue Growth: Revenue increased 156% to $21.9 million, driven primarily by a $14.8 million increase in energy storage product sales (Australian EPC projects) and $1.5 million in new tolling/PPA revenue from owned assets. This was partially offset by a $3.2 million decrease in IP licensing revenue.
- Margin Compression: Gross margin declined to 21.9% from 57.1% due to the shift in revenue mix from high-margin IP licensing to lower-margin EPC product sales.
- Expense Increases: General and Administrative (G&A) expenses rose $3.7 million to $21.2 million, driven by higher legal/professional fees and project development costs. Interest expense surged to $3.5 million from $0.1 million due to new debt financings.
- Debt Restructuring: The company issued $150 million in Senior Convertible Notes in February 2026. Concurrently, it repaid significant portions of Convertible Debentures, incurring a $5.2 million loss on debt extinguishment.
- Liquidity Position: Total cash and restricted cash increased to $117.1 million from $47.2 million, bolstered by $145.1 million in net proceeds from the Senior Convertible Notes and $11.8 million from Investment Tax Credit (ITC) sales.
Guidance, Outlook, Risks, and Unusual Items
- Outlook: Management believes current cash and restricted cash are sufficient to fund operations for at least the next 12 months. The company continues to pursue its "Own and Operate" strategy via the Asset Vault subsidiary.
- Debt Covenant Compliance: The company disclosed non-compliance with the minimum debt service coverage ratio covenant for the Cross Trails Senior Note for the quarter ended March 31, 2026. While the lender has not declared an event of default as of the filing date, the outstanding balance has been classified as current. Management is working on remedies including waivers or equity investments.
- Subsequent Financing: On May 18, 2026, the company entered an agreement to issue up to $75 million in Senior Secured Convertible Debentures, with an initial tranche of $42 million expected to close.
- Strategic Developments:
- Acquired rights to the McMurtre BESS project (175 MW/350 MWh) in Texas.
- Entered a binding agreement to acquire an 850 MW BESS development portfolio in Japan.
- Secured a supply agreement for 1.5 GWh of sodium-ion battery systems from Peak Energy.
- Risks: Significant exposure to trade tariffs (Section 301 and IEEPA) affecting supply chain costs. High concentration of revenue (81% from one customer in Q1 2026). Reliance on third-party EPC firms and raw material availability.
Investor Verification Checklist
- Covenant Status: Verify the resolution of the Cross Trails Senior Note debt service coverage ratio non-compliance and whether a waiver has been obtained.
- Debt Maturity Profile: Review the cash flow requirements for the new Senior Convertible Notes ($150M) and the subsequent Senior Secured Convertible Debentures ($75M facility) against projected operating cash flows.
- Customer Concentration: Assess the risk associated with 81% of Q1 2026 revenue coming from a single customer and the status of the refundable contribution receivable ($25M) which is fully reserved.
- Restricted Cash: Analyze the $61.9 million in restricted cash to determine the portion available for general corporate use versus collateral for bonds and debt.
- Project Execution: Monitor the timeline and cost realization for the new Japan portfolio acquisition and the McMurtre project to ensure they meet the "time-to-power" targets.