Renewable energy is a critical factor in reducing our global carbon footprint. However, many renewable energy sources only provide energy when the sun is shining or the wind is blowing. For society to make the full transition to renewable energy sources, we need a way to store energy, so we can access it when we need to. Many energy storage solutions are costly. That’s why electric vehicles (EVs), which are essentially batteries on wheels, present an opportunity to meet the growing need for energy storage. Vehicle-to-grid (V2G) technology allows EVs to charge when renewable energy is abundant and give energy back to the grid when demand is the highest. Fleet vehicles have larger batteries that could serve as a critical source of backup power during disasters like the Texas power crisis.