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The Commercial Demonstration Unit (CDU) is a grid scale gravity energy storage system, located in Switzerland (Ticino), which can be economically deployed from 20 MWh up to 80 MWh of storage capacity per single system, depending on permitting height and the number of composite bricks fabricated. We typically use 35 MWh as a standard configuration capacity per EV tower system.

The CDU is connected to the Swiss national utility grid and  achieved mechanical completion in July 2020. The system is now under final testing and software commissioning. This commercial scale system is part of Energy Vault’s technology roadmap that follows the 1:4 scale pilot system built and operated in 2018, where all core technology elements were tested and validated.

Energy Vault is also introducing a new modular and flexible product architecture that leverages the same core technology components under demonstration in Switzerland (Advanced Trajectory Computation, Material Science, Applied Computer Vision and a proprietary system design) in order to address a broader range of energy storage requirements for higher C-rate (shorter duration), decoupled energy and power design, full scalability from 1 MWh module up to multi-GWh of storage capacity, beneficial re-use of waste material and significantly lower system height.

Please contact [email protected] to learn more about the CDU and how our product portfolio can meet your energy storage needs.

Progress in Pictures and Video