When it’s parked in your garage, the Polestar 3 can now help you save on your electric bill.

The automaker is the latest to roll out bidirectional charging for its electric vehicles, making it possible to charge the SUV’s battery when power is cheap and then use the vehicle to power your house when prices go up. The company partnered with Dcbel, a startup that makes technology that manages the flow of energy between the car and home.

“Most of our cars sit in driveways more than 80% of the time,” says Dcbel CEO Marc-André Forget. “Now, for the first time, if we think about it, cars start to be useful even when parked. This is transformational. It’s the second-largest investment for most family after the market of the home, and those assets are underused.”

When you plug the car into Dcbel

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