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Energy Vault is a technology company.
Energy Vault develops and deploys utility-scale energy storage solutions designed to integrate renewable energy sources into power grids effectively. The company offers a diverse portfolio encompassing gravity-based energy storage systems like G-VAULT and EVx, battery energy storage solutions including B-Nest and B-VAULT, and hydrogen-based long-duration storage with H-VAULT. Complementing its hardware, Energy Vault also provides software platforms such as VaultOS for comprehensive energy management.
The company was co-founded in 2017 by Robert Piconi, who serves as CEO, and Andrea Pedretti, the CTO. Their foundational insight stemmed from the critical need for a more sustainable and cost-effective approach to energy storage, particularly for long durations, to accelerate the global transition away from fossil fuels. This led to the development of innovative technologies aimed at addressing the intermittency challenges inherent in renewable power generation.
Energy Vault's products serve a broad range of customers, including utilities, independent power producers, and large industrial clients seeking to enhance grid stability and energy independence. The company's vision is centered on enabling a fully renewable world by providing dependable and economically viable energy storage solutions across all durations, thereby supporting global decarbonization efforts and fostering a resilient energy infrastructure for the future.
Energy Vault has raised $330.0M across 5 funding rounds.
Energy Vault has raised $330.0M in total across 5 funding rounds.
Energy Vault is a technology company specializing in innovative, utility-scale energy storage solutions that enable reliable, affordable renewable energy integration. Its flagship product, the EVx gravity-based storage system, uses composite blocks lifted and lowered by cranes to store and dispatch electricity, providing long-duration storage with high efficiency and durability. The company serves utilities, independent power producers, and large industrial energy users, addressing the critical problem of renewable energy intermittency by offering cost-effective, scalable storage that supports grid resiliency and 24/7 clean power delivery. Energy Vault has demonstrated strong growth momentum with over 1.4 GWh of deployed storage capacity since 2023 and customer engagements exceeding $9 billion in demand[1][2][3][4][7].
Founded in 2017 and headquartered in Switzerland, Energy Vault was created by a team of energy and technology experts aiming to revolutionize energy storage by applying fundamental physics—gravity and potential energy—combined with advanced materials science and AI-driven software. The idea emerged from the need to find a sustainable, low-cost alternative to chemical batteries and pumped hydro storage. Early pivotal moments include unveiling its technology in 2018 and securing significant investments and partnerships, such as a $50 million licensing deal with China’s Atlas Renewable, which helped build the first full-scale G-Vault installation. The company has since evolved from focusing solely on gravity storage hardware to offering a diverse portfolio including battery and hydrogen storage technologies, alongside software platforms for energy asset management[2][3][6][8].
Energy Vault rides the global trend toward decarbonization and renewable energy expansion, addressing the critical bottleneck of energy storage for grid reliability. The timing is crucial as renewable penetration increases, requiring scalable, long-duration storage to balance supply and demand. Market forces favor Energy Vault’s technology due to rising battery costs, supply chain constraints, and the need for sustainable, circular economy solutions. By integrating gravity, battery, and hydrogen storage with sophisticated software, Energy Vault influences the broader ecosystem by accelerating renewable adoption, reducing reliance on fossil fuels, and enabling new business models for energy asset management[2][3][4][5].
Energy Vault is positioned to expand its footprint by scaling deployments globally and deepening its technology portfolio, including hybrid solutions combining gravity, battery, and hydrogen storage. Future trends shaping its journey include increasing demand for long-duration storage, grid modernization, and digital energy management. Its influence may grow as it transitions from a product-focused company to a solutions provider and asset owner, potentially reshaping how utilities and industries procure and operate energy storage. Continued innovation in materials, software, and integration will be key to maintaining competitive advantage and supporting the global clean energy transition[3][6][8].
Energy Vault has raised $330.0M in total across 5 funding rounds.
Energy Vault's investors include Yorkville Advisors, Korea Zinc, Prime Movers Lab, Gordon Crawford, A.T. Gekko, Crexa Capital Advisors, Green Storage Solutions Venture I, Helena, Idealab X, Pickering Energy Partners, SailingStone Global Energy Transition, Saudi Aramco Energy Ventures.
Energy Vault has raised $330.0M across 5 funding rounds. Most recently, it raised $50.0M Debt in September 2025.
| Date | Round | Lead Investors | Other Investors |
|---|---|---|---|
| Sep 29, 2025 | $50.0M Debt | Yorkville Advisors | |
| Jan 6, 2022 | $50.0M Other Equity | Korea Zinc | |
| Aug 1, 2021 | $100.0M Series C | Prime Movers Lab | Gordon Crawford, A.T. Gekko, Crexa Capital Advisors, Green Storage Solutions Venture I, Helena, Idealab X, Pickering Energy Partners, SailingStone Global Energy Transition, Saudi Aramco Energy Ventures, SoftBank |
| Jul 20, 2021 | $20.0M Other Equity | Helena | |
| Aug 14, 2019 | $110.0M Series B | SoftBank Vision Fund |