Vehicle-to-grid car sharing trial shows EVs could become part of the energy system

May 13, 2026

One of the biggest long-term questions around EVs has always been whether cars could eventually do more than simply consume electricity.

A large-scale project in Utrecht now suggests the answer may be yes.

The Dutch city has been running one of Europe’s first fully operational vehicle-to-grid (V2G) car-sharing schemes using a fleet of Renault 5 E-Tech models, alongside other Renault EVs due to join later. The idea is relatively simple: cars charge when renewable energy supply is high, then feed electricity back into the grid when demand increases.

According to researchers reviewing the project, the scheme has already shown that V2G can work in real-world daily use rather than just controlled trials.

For everyday drivers, the concept may sound fairly distant from normal commuting. But the broader implication is important. EVs are increasingly being viewed not just as vehicles, but as mobile energy storage systems that could eventually help stabilise electricity networks, particularly as solar and renewable energy generation continues to grow.

During the first five months alone, the Utrecht fleet returned more than 65,000kWh of electricity back into the local grid.

The project also highlights how closely the future of EV adoption may become tied to wider energy infrastructure. As fleets continue electrifying, attention is gradually shifting beyond simply vehicle range and charging speeds towards how EVs interact with homes, workplaces, public charging, and the grid itself.

There are still major challenges around infrastructure, regulation, and commercial viability. But projects like this suggest vehicle-to-grid technology is starting to move beyond theory and into something much closer to everyday practical use.