Due to the usage patterns of the bus fleet I wonder if they could be used for some vehicle to grid [1] power bank on weekends/during weekday downtime? It might

Due to the usage patterns of the bus fleet I wonder if they could be used for some vehicle to grid [1] power bank on weekends/during weekday downtime? It might shorten the lifetime of the batteries themselves but would be a nice additional revenue stream. [1]: https://en.wikipedia.org/wiki/Vehicle-to-grid https://en.wikipedia.org/wiki/Vehicle-to-grid