Toyota began in Japan production and sales of its hydrogen fuel cell buses called Sora that share technology with Mirai. Same as with other fuel cell vehicles, production volume is very small, Toyota announced that 100 units will be delivered in the Tokyo metropolitan area by 2020 for the Olympic games.
Sora is equipped with two FC stacks 114 kW each that provide electricity for the two 113 kW AC synchronous electric motors. For the small drive battery, Toyota still uses NiMH. The 34.5 feet long bus fits 79 people (22 seated, 56 standing, and the driver). The range on 10 tanks of hydrogen (600 liters working at 70 Mpa nominal pressure) is comparable to conventional buses.
An interesting emergency feature is the external power supply system; it has a special inverter that connects to the vehicle through the CHAdeMO, that provides up to 9 kW power and can deliver up to 235 kWh, which can be a day or two of juice, depending on usage.