Energy Vault Sees Significant Growth in Q4 2025 with Record Revenue and Positive Adjusted EBITDA
Energy Vault, a leading energy storage solutions company, has reported a strong finish to the year in its fourth quarter and full-year 2025 financial results. In a recent conference call, Robert Piconi, Chairman and Chief Executive Officer, highlighted the company's significant growth and progress towards achieving its objectives.
The contract backlog saw a substantial increase of 42% quarter-over-quarter, with a four-to-five-fold growth over the past five quarters. This represents a major milestone in Energy Vault's transition to an Asset Vault strategy, where it now owns and operates assets rather than just delivering technology and projects. As Piconi noted, this metric is crucial for investors to keep an eye on, as it guides future predictability and recurring long-term revenue streams with high margins.
Revenue for the quarter reached over $150 million, a significant improvement from last year's finish within original guidance, despite tariffs and market volatility. Gross profit also finished strong at $48 million, with unit economics showing improved gross margin from 13.4% last year to 23.6% this year.
A key surprise was the company's positive adjusted EBITDA, a result of revenue performance, strong unit economic performance in gross margins, and effective management of operating expenses. This achievement highlights Energy Vault's ability to deliver profitable growth, even amidst market challenges.
The contracted megawatts have grown significantly, reaching 540 MW, backed by long-term contracts that will enable the company to achieve annual and recurring predictable revenue streams at higher margins than traditional EPC or integration business models. Piconi emphasized the importance of this metric in guiding future growth and predictability.
Energy Vault's Q4 results demonstrate its commitment to executing its Asset Vault strategy, driving profitable growth, and delivering strong financial performance. As the company continues on this path, investors will closely monitor its progress towards achieving these objectives and capturing a larger share of the growing energy storage market.
