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Toyota developing external power supply system and V2H for fuel cell buses
31 August 2012
|FC Bus Power Supply System and the V2H System. Click to enlarge.|
Toyota Motor Corporation (TMC) has developed an external power supply system that uses electricity generated within a fuel cell bus (FC bus) to supply electrical power to devices such as home electrical appliances. An FC bus—based on the FCHV-BUS (Fuel cell hybrid vehicle-bus)—equipped with the new power supply system has two electrical outlets (AC 100 V, 1.5 kW) inside the cabin that can supply a maximum output of 3 kW and potentially power home appliances continuously for more than 100 hours.
As part of the emergency power-supply training section of the disaster-control training to be conducted by Aichi Prefecture and Toyota City on 2 September, the system is to power approximately 20 information display monitors inside a disaster control headquarters tent.
Fuel cell vehicles (FCVs) can supply a much greater amount of electrical power than electric vehicles (EVs), Toyota noted. Thus, FC buses, with their large amount of stored hydrogen, hold promise as potential mobile power-supply vehicles that can be used at such places as evacuation centers following disasters.
TMC is also developing a vehicle-to-home (V2H) system for supplying electricity from an FC bus to a building’s existing electrical wiring with the goal of providing a maximum output of 9.8 kW for 50 hours. (Toyota has already developed a V2H system for light-duty EVs and PHVs. Earlier post.)
With a full tank of hydrogen, an FC bus with the V2H system could be used to power the lights inside an average school gymnasium (with a power consumption of approximately 100 kWh) for approximately five days (assuming the lights are on 12 hours per day).
TMC plans to test this V2H system for FC buses in 2013 and 2014 as part of the Toyota City Low-Carbon Verification Project, which has been adopted as one of the Next-Generation Energy and Social System Demonstration Projects being promoted by the Ministry of Economy, Trade and Industry.
Units of the FCHV-BUS are currently in use on various routes in Japan, such as within the environs of the Central Japan International Airport, between the Tokyo International Airport and the Tokyo metropolitan area, and within Toyota City.
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