When Cars Become Power Plants

A pilot in California and Connecticut shows how EVs could power homes and stabilize the grid

26 Jan 2026

Electric vehicles are beginning to do more than move people. They are starting to move electricity. A new multi-state pilot launched in October 2025 is testing how EVs can feed power back into the grid, offering a glimpse of how cars might help stabilize an energy system increasingly shaped by renewables.

The effort, led by Bidirectional Energy with technology from Wallbox, is underway in select homes in California and Connecticut. Its first participants are Kia EV9 owners equipped with bidirectional charging systems. These vehicles can both draw and return electricity, turning their batteries into compact energy hubs. When managed through smart software, hundreds of cars can work together like a flexible, distributed power plant.

For utilities and policymakers, the trial points to a potential shift in grid design. Instead of investing only in large battery installations or new power plants, providers could one day tap into energy stored in everyday driveways. That approach could ease grid stress and lower infrastructure costs as demand rises from electric vehicles, data centers, and electrified heating.

Homeowners stand to benefit as well. State incentives help cover installation costs, while participants gain backup power during outages and may earn compensation for supplying energy during peak hours. Bidirectional Energy hopes to show that EV owners can capture real value while supporting grid reliability.

Wallbox executives describe the initiative as a turning point for EV charging, reframing it from a simple utility into a broader energy service. Still, scaling this model will not be easy. Regulations and utility programs vary by region, and concerns over battery wear, data security, and interoperability remain unresolved.

Even so, momentum is building. As renewable generation grows and grid constraints tighten, the idea of EVs doubling as mobile energy assets is starting to look less like a novelty and more like a necessary part of the clean energy transition.