Shares of Energy Vault Holdings surged as the small-cap energy storage firm announced what could be a transformational contract — or a promise too large for its balance sheet to keep. NRGV shares jumped nearly 18% to $3.49 on Friday after the company disclosed a major commercial agreement covering 1.25 gigawatts of power infrastructure for hyperscaler AI data centers — its largest single contract to date.
A Contract Worth More Than Two Years of Revenue The numbers are staggering relative to the company's size. Energy Vault expects a revenue impact of roughly $500–$600 million in the second half of 2026 and 2027 , a figure that dwarfs its recent performance. Full-year 2025 revenue was $203.7 million, itself a 340% increase from just $46.2 million the prior year. In other words, this single deal could nearly triple the company's annual revenue run rate — if it executes. With roughly 178 million shares outstanding , the stock's market capitalization at $3.40 sits around $600 million, meaning the market is currently valuing the entire company at roughly what one contract alone could generate.
The AI Power Crunch Is the Real Tailwind
The companies intend to jointly pursue additional hyperscaler and AI infrastructure opportunities in markets where constrained grid capacity and extended utility interconnection timelines are driving demand for rapidly deployable power solutions.
The planned systems will operate independently from traditional utility connections during initial deployment phases — a critical advantage when data center operators face multi-year waits for grid hookups. This positions Energy Vault squarely in the behind-the-meter power market, where data centers build their own electricity supply rather than relying on the local grid.
Profitability Remains the Open Question Even as revenue skyrockets, losses persist. The 2025 GAAP net loss was $103.6 million, a $32.2 million improvement from the prior year's loss.
The net profit margin stands at negative 50.9%. Scaling from ~$200 million in annual revenue to potentially $500+ million will stress working capital, supply chains, and project management. The company recently hired a new CFO from BlackRock and ended 2025 with $103.4 million in cash — a thin cushion for a contract of this magnitude.
Execution Risk on a Company This Size Is Enormous
The partnership is designed as a scalable commercial platform capable of supporting significant future expansion beyond the initial contracted deployment. That language signals ambition, but investors should note that Energy Vault must deliver battery storage, power conversion hardware, control software, and turnkey engineering simultaneously. The earnings call on August 11 will be the first real test of whether management can detail credible timelines, financing, and margin expectations for a deal that could either remake the company — or overwhelm it.