Electric buses are charged In different ways, some have on board chargers and just need a power supply to charge them others have to rely on a fixed charger system either install in the garage or on the street.No doubt, like Heathrow there will be a number of mobile generators to use if a fixed ground power outlet goes out of service.But generators have come a long way and no longer Belch out obnoxious black diesel fumes, as they one did many years ago.
Bernard Allen ● 889d