The episode presents Vehicle-to-Grid (V2G) as a technology that enables electric vehicles to function as energy storage units, providing electricity to the grid when needed. The main benefits include grid stabilization, integration of renewable energies, and significant economic savings for electric vehicle owners, along with environmental benefits such as decarbonization. An example is provided to calculate the potential savings with a Renault 5, and a list of V2G-compatible electric vehicles is mentioned, although the technology is not yet widely available, including in Italy, due to infrastructure and regulatory limitations. In summary, V2G promises to improve energy efficiency and promote a more sustainable future, while offering economic benefits to electric vehicle owners.