8-K: Energy Vault Reports Strong Q1 2026 Results, Reaffirms Guidance

Energy Vault Holdings, Inc. announced robust first quarter 2026 financial results, showcasing significant year-over-year growth in revenue and MW under management, while reaffirming its full-year 2026 guidance.

Summary

• Energy Vault Holdings, Inc. reported first quarter 2026 financial results, highlighting a substantial increase in global MW under management, which surged to 1.1 GW, a more than 500% year-over-year increase.
• The company's year-to-date 2026 backlog reached $1.35 billion, up 108% year-over-year, with over 80% attributed to recurring, high-margin IPP revenue.
• Q1 2026 revenue was $21.9 million, a 156% increase compared to the prior year.
• GAAP Gross Profit for Q1 2026 was $4.8 million, and Adjusted Gross Profit was $6.1 million, up 25% year-over-year.
• The company achieved its fifth consecutive quarterly increase in cash, ending the quarter with $117 million.
• Energy Vault added 100 MW of Powered Land and Powered Shell projects for AI data center infrastructure, projected to generate over $65 million in annual, recurring EBITDA within 12-18 months.
• The company announced its entry into the Japan market with the acquisition of an 850 MW BESS IPP project portfolio, with 350 MW of advanced-stage projects expected to close in Q2 2026.
• The Own & Operate portfolio now exceeds 1 GW, expected to generate over $180 million in annual, recurring run rate EBITDA, surpassing previous guidance.

Sentiment

Score: 7

Explanation: StockSavvy.ai views this as a positive report, with strong growth metrics and reaffirmation of guidance, despite increased near-term losses due to strategic investments.

Positives

• Global MW under management surged over 500% year-over-year to 1.1 GW.
• Year-to-date 2026 backlog increased 108% year-over-year to $1.35 billion, with over 80% being recurring, high-margin IPP revenue.
• Q1 2026 revenue grew 156% year-over-year to $21.9 million.
• Adjusted Gross Profit increased 25% year-over-year to $6.1 million.
• Cash balance increased for the fifth consecutive quarter, reaching $117 million.
• Secured 100 MW of Powered Land and Powered Shell projects for AI data centers, expected to yield over $65 million in annual recurring EBITDA.
• Entered the Japan market with an 850 MW BESS IPP project portfolio acquisition.
• Own & Operate portfolio now exceeds 1 GW, projected to generate over $180 million in annual recurring EBITDA, ahead of guidance.

Negatives

• Q1 2026 GAAP Net Loss was $32.5 million, an increase from $21.1 million in the prior-year period, attributed to higher depreciation, interest expense, and non-recurring items.
• Q1 2026 Adjusted EBITDA loss was ($13.6) million, compared to a loss of $11.3 million in the prior-year period, due to increased development expenses and personnel for the new strategy.
• Q1 2026 Adjusted Net Loss was ($20.0) million, compared to a loss of $11.8 million in the prior-year period, reflecting higher depreciation and interest expenses.
• GAAP gross margin decreased to 21.9% from 57.1% in the prior year, due to a shift in revenue mix towards product deliveries and early-stage assets.

Risks

• The company faces risks related to changes in its strategy, expansion plans, customer opportunities, and future operations.
• There is uncertainty regarding the conversion of awards, bookings, backlog, and developed pipeline into future revenue.
• The company may not be able to secure binding financings, orders, or sales from non-binding letters of intent.
• Products or services could be alleged to be defective or experience failures.
• Market acceptance and success of the business model and growth strategy are not guaranteed.
• Developments and projections relating to competitors and the industry could negatively impact the company.
• Changes in tax laws and government regulations, including those related to clean-energy tax credits, could affect the company.
• Investment in development projects may not achieve commercial operations within the predicted timeframe or at all.

Future Outlook

The company reaffirms its full-year 2026 guidance, expecting revenue between $225-$300 million (approximately 30% year-over-year growth at the midpoint). It anticipates $75-$100 million in internal Asset Vault project builds, targeting a full-year gross margin of 15%-25%, and aims for $150-$200 million in total cash by year-end 2026. The Own & Operate strategy is expected to yield over $180 million in annual recurring EBITDA run rate.

Management Comments

• "Our first quarter 2026 results reflect a resounding validation of our shift to an energy infrastructure platform provider, more than doubling our MW capacity under management from last quarter to over 1 GW."
• "Our strong year-over-year revenue and gross profit growth in the quarter reflects us reaping the benefits of our unique vertically integrated storage IPP and EPC model, enabling us to execute faster, cheaper and with the highest quality, safety and predictability versus our peers."
• "We are uniquely positioned at the intersection of two powerful global megatrends - grid scale energy storage and the rapid growth of AI compute power delivery."
• "Power is the primary constraint on AI data center expansion, and Energy Vault is executing at a rapid pace to play a growing role in enabling this expansion."
• "Our focus remains on disciplined capital allocation, accelerating asset ownership, and delivering predictable, high-quality earnings growth over the long term."

Industry Context

StockSavvy.ai notes that Energy Vault's strategic pivot towards an energy infrastructure platform provider, focusing on both grid-scale energy storage and AI compute infrastructure, aligns with major industry trends. The company's expansion into the Japanese market and its focus on AI data center power solutions position it to capitalize on the growing demand for both sustainable energy and computing power.

Comparison to Industry Standards

• Energy Vault's year-over-year revenue growth of 156% in Q1 2026 significantly outpaces many established players in the energy storage sector, which often see more moderate growth rates.
• The company's backlog growth of 108% year-over-year to $1.35 billion indicates strong future revenue potential, a key metric for growth-oriented infrastructure companies.
• The expansion of its Own & Operate portfolio to over 1 GW and projected recurring EBITDA of over $180 million positions Energy Vault to compete with larger Independent Power Producers (IPPs) in terms of recurring revenue streams.
• The company's focus on AI data center infrastructure is a nascent but rapidly growing segment, where few companies currently offer integrated solutions like Energy Vault.

Stakeholder Impact

• Shareholders: Potential for increased valuation and upside due to the shift to an IPP and Digital Infrastructure company peer group, alongside strong growth metrics.
• Employees: Increased development expenses and new personnel associated with the Own & Operate / AI power infrastructure strategy may indicate growth and new opportunities.
• Customers: Continued expansion of global footprint and project execution capabilities suggest reliable service delivery.
• Creditors: Repayment of $45 million in existing higher-cost principal debt may improve the company's debt profile.

Next Steps

• Expected to close the acquisition of the 850 MW BESS IPP project portfolio in Japan in Q2 2026.
• Expected to complete the remaining two Investment Tax Credit (ITC) transfers in the coming months, representing approximately $40 million in net proceeds.
• Continue to advance the development of the AI power infrastructure platform through strategic partnerships.
• Continue to scale the Own & Operate portfolio globally.

Key Dates

Recommendation

The company shows strong growth and strategic alignment with industry trends, but the widening net loss and adjusted EBITDA loss, coupled with the inherent risks of a growth-stage infrastructure company, warrant a cautious 'hold' rating until profitability improves and strategic investments translate more clearly into positive cash flow.

Keywords

Energy Vault, Energy Storage, AI Data Centers, Financial Results, Q1 2026, IPP, BESS, Grid Scale