

Rotorvault
Energy-storage and load-following solutions for grid-scale and commercial applications
RotorVault is commercializing cost competitive and sustainable energy storage and load following solutions for grid-scale and commercial applications. RotorVault energy storage and load-following solutions are containerized, modular, and field-deployable systems built on next-generation flywheel technology. Designed for commercial and grid-scale applications, RotorVault supports decarbonization, grid-resiliency, load-following, peak shaving, and resource adequacy. By integrating well understood conventional technologies with econo-optimization of core elements, RotorVault delivers one of the lowest levelized costs of energy storage (LCOS), a multi-decade service life, no performance degradation, and high cycling capability. Unlike batteries, RotorVault lasts longer, is safer, and has a lower environmental impact, making it a cost-effective and sustainable solution for applications such as AI data centers, EV charging facilities, and load serving entities such as utilities and microgrids.
Ethan Greenberg
Co-founderRobert Villegas
CEO