According to the report, an electrical engineer by the name of Marco Gaxiola confirmed the bidirectional charging readiness of the Model 3 when the sedan was taken apart for evaluation by a competitor. “The design is fully bidirectional,” said Gaxiola. “Power can flow in a reverse direction, coming from the battery and ending up on the AC side. When this technology is present in a vehicle, it is known as V2G (vehicle to grid).”
What are the benefits of V2G? Well, your EV could theoretically be used to charge your home in the event of a power outage. One EV could even charge another, which could be greatly beneficial if a charging point is out of reach. On a larger scale, electric utilities could access power from vehicles, easing demand over peak periods. As far back as 2018, Elon Musk tweeted that the technology was worth revisiting.