Energy Vault’s $2 billion backlog and AI-power pivot create asymmetric upside, but debt, dilution and a demanding H2 2026 delivery ramp define the risk.
Overview
Energy Vault designs grid-scale short-, long- and ultra-long-duration storage for utilities, IPPs, industrial customers and increasingly hyperscaler data centers. Its strategic pivot from gravity-storage technology supplier to vertically integrated Asset Vault owner/operator aims to replace lumpy EPC revenue with contracted tolling and PPA cash flows. **Q2 2026 revenue doubled 104.1% year over year to $17.37 million**, beating consensus by $3.13 million, while GAAP gross margin expanded to 31.0% and adjusted gross margin to 38.6%. Backlog reached $2.0 billion, up 107.0% year over year, including a 1.25 GW Texas AI infrastructure agreement expected to generate $500-$600 million through 2027. Management raised 2026 revenue guidance to $270-$310 million and gross-margin guidance to 20%-25%. **The opportunity is asymmetric but execution- and balance-sheet-dependent**: debt rose to $264.20 million, first-half operating cash burn was $84.36 million, and the company must deliver at least $230.75 million in H2 to reach the low end of guidance. The DCF indicates $4.35 intrinsic value versus the $3.58 share price, while the base 2031 scenario reaches $10.96.