Energy Vault Earnings Call Highlights Rapid Scale-Up

Energy Vault Holdings, Inc. ((NRGV)) has held its Q4 earnings call. Read on for the main highlights of the call.

Energy Vault Holdings, Inc. struck an upbeat tone on its latest earnings call, underscoring breakneck growth, expanding margins and a strengthened balance sheet. Management acknowledged lingering risks around tariffs, project timing and profitability, but argued that surging backlog, contracted capacity and fresh capital now give the company a much stronger foundation for scalable, recurring earnings.

Explosive Revenue Growth and Strong Q4 Finish

Energy Vault reported Q4 revenue of $153.3 million, up about 358% year over year, capping a transformative period for the business. Full-year 2025 revenue reached $203.7 million, more than tripling versus the prior year and landing within earlier guidance, reinforcing management’s message that growth is becoming more predictable.

Backlog and Pipeline Point to Multi-Year Visibility

The company’s revenue backlog swelled to $1.3 billion as of Dec. 31, 2025, roughly three times the prior year and 42% higher sequentially. Management also cited a developed pipeline of opportunities exceeding $3 billion tied to about 1.8 gigawatts of capacity, signaling potential fuel for future orders and revenue.

Contracted Megawatts Underpin Asset Vault Strategy

Contracted capacity jumped to 540 megawatts, including roughly 100 megawatts linked to AI-oriented digital infrastructure projects. Executives highlighted this as a dramatic increase from the low double-digit megawatt levels in early 2025, positioning the Asset Vault platform for long-term, high-margin recurring contracts.

Margin Expansion and Improving Profitability Trends

Full-year GAAP gross profit climbed to $48 million, nearly eight times the prior year, as gross margin improved to 23.6% from 13.4%. Fourth-quarter gross margin of 20.6%, up from 7.8% a year earlier, showed the company is capturing better project economics even while scaling rapidly.

Adjusted EBITDA Turns the Corner in Q4

Energy Vault delivered positive adjusted EBITDA of $9.8 million in Q4, versus a $13.4 million loss in the same period last year, alongside adjusted net income of $3.7 million compared with a $25 million loss. For the full year, adjusted EBITDA loss narrowed significantly to $21.2 million from $58 million in 2024, suggesting operating leverage is beginning to materialize.

Liquidity Reinforced by Equity and Convertible Deals

Cash on hand rose to $103.4 million at year-end 2025, more than tripling year over year and increasing 67% from the prior quarter. The company closed a $300 million preferred equity fund in October 2025 to support Asset Vault and completed a $150 million convertible notes offering in February 2026, using part of the proceeds to retire $45 million of higher-cost debt.

Asset Vault Assets Show Recurring EBITDA Power

The first Asset Vault projects, Calistoga and Cross Trails, are now in service and expected to generate about $10 million of annualized adjusted EBITDA on a stand-alone basis. Management said Asset Vault Fund 1 should initially deliver around $60 million of recurring adjusted EBITDA and could scale to $100 million to $150 million by year-end 2029 as more projects come online.

AI Digital Infrastructure Adds High-Margin Growth Angle

A key highlight was the emerging AI-focused digital infrastructure segment, anchored by a 25 megawatt Powered Shell agreement with Crusoe. Executives pointed to attractive economics, estimating $1.5 million to $2.0 million of EBITDA per megawatt for Powered Shells, which could become a meaningful driver of margins as the segment expands.

Execution Edge and Strong Unit Economics

Management repeatedly emphasized execution capabilities such as design-to-operation integration, digital twins and shortened commissioning cycles. They argued these capabilities underpin “best-in-class” unit economics, with gross margins around 23.6% that are roughly double the 5%–12% typically seen in engineering, procurement and construction or integration peers.

Tariff Shock Created Early-Year Volatility

The company acknowledged that 2025 started on a difficult note due to tariffs and market uncertainty, which disrupted planning and operations. This backdrop forced Energy Vault to adjust and restructure parts of its business, highlighting that macro and policy shifts can still significantly impact execution.

Full-Year Profitability Still a Work in Progress

Despite a profitable fourth quarter on an adjusted basis, Energy Vault remained loss-making for the full year, with adjusted EBITDA at negative $21.2 million. Management framed this as a transitional phase where scale benefits are emerging but have not yet translated into consistent GAAP profitability across the calendar year.

Project Financing and Timing Risks Remain

Several marquee projects are still subject to financing and regulatory milestones, introducing timing risk for revenue and cash. Management noted, for example, that financing for the SOSA project is expected in the second quarter of 2026, while Stoney Creek financing and approvals are targeted for the second half of 2026 and some assets may not start operating until as late as 2028.

Wide Margin Guidance Signals 2026 Variability

The company’s 2026 gross margin outlook of 15%–25% spans a broad range and has a midpoint below 2025’s 23.6%, suggesting potential near-term pressure from project mix and timing. Management also flagged that some internal project integration work will not appear in GAAP revenue, potentially obscuring underlying cash contribution and complicating year-over-year comparisons.

Cost Discipline and Operational Conservatism

Energy Vault implemented operating expense reductions in June 2025 in response to market volatility and earlier liquidity concerns. Executives cast these cuts as part of a more conservative stance that focuses on efficiency while still supporting growth, aiming to balance expansion with tighter cost control.

Guidance and Forward Outlook Emphasize Growth and Scale

For 2026, Energy Vault guided revenue to a range of $225 million to $300 million, implying roughly 30% growth at the midpoint, with gross margins expected between 15% and 25% and year-end cash of $150 million to $200 million. The company highlighted a $1.3 billion backlog, 540 megawatts of contracted capacity, expected investment tax credit proceeds and preferred equity capacity to fund over 1.5 gigawatts of Asset Vault projects as key supports for future recurring EBITDA growth.

The earnings call painted a picture of a company rapidly scaling from project-by-project execution to a more annuity-like model built on contracted storage and digital infrastructure assets. While tariff shocks, financing timelines and margin variability remain real risks, investors heard a clear message that Energy Vault’s backlog, improved margins and reinforced liquidity are shifting the risk–reward profile more firmly in its favor.