V2G stands for Vehicle-to-Grid. It is a way to use the electric batteries of electric cars to send power back to the electric grid. Imagine if your electric car was not just a way to get around, but could also help to provide electricity to power homes and businesses! That's what V2G is. With V2G, the battery in your electric car can be used to store electricity, and then send it back to the electric grid when it's needed. This helps to make the grid more reliable and helps to increase the amount of renewable energy being used.