Enercity & VW sell EV battery power on electricity exchange

German energy provider Enercity, together with Volkswagen Commercial Vehicles, has reached a significant milestone in vehicle-to-grid (V2G) technology: a fleet of electric vehicles fed electricity back into the public grid in Hanover and that energy was traded on the electricity spot market. Crucially, this happened not in a lab but in a genuine business-to-business operational environment.

Why this milestone matters

For the first time, a commercially operated EV fleet functioned collectively as a virtual power plant and storage system, actively participating in electricity market trading. Previous V2G demonstrations have largely remained confined to research settings or single-vehicle trials. This project shows the technology is ready for real-world deployment at fleet scale.

The project also demonstrated financial viability — it generated revenue. This is a critical proof point for fleet operators and energy companies across the EU considering V2G investments. With bidirectional charging infrastructure still maturing, Enercity and VW's results offer a compelling business case that could accelerate regulatory and grid adaptation across Europe.

For markets outside Germany, the implications are broad: any country with a growing EV fleet and flexible electricity markets could replicate this model. The convergence of electric mobility, energy storage, and grid services is no longer theoretical — it is commercially operational.