Actually Consett was built in a way to allowed infrastructure for Electric Vehicles to be easily installed. Deptford would probably also be pretty easy to create an EV facility. Also I believe Hexham would have space, considering if they did get EV, they would just replace what is already there. As for Washington / Percy Main / Chester Le Street, well they would need competely new depots, whilst Peterlee is just space rented to park the buses at night rather than being an depot outright.