Californian firm GE has announced plans to commercialise its green hydrogen - fuelled electric aviation powertrain in 2022 , initially focusing on short - haul 500-mile regional flights . In addition to passenger transport, the ZeroAvia powertrain could have applications across other use cases including cargo, air taxi, agriculture, as well as across the aircraft types, including manned and unmanned fixed-wing, rotorcraft, and more. According to available information , the aircraft is the largest to fly without any fuel and support from fossil fuels . ZeroAvia said the prototype would cost around half as much to fly as a conventional plane , and added the electric powertrain had applications across a range of aircraft and sectors , including cargo , air transport and agriculture . The drivetrain will be leased to customers , who will pay by the hour .
Californian firm GE has announced plans to commercialise its green hydrogen - fuelled electric aviation powertrain in 2022 , initially focusing on short - haul 500-mile regional flights . According to available information , the aircraft is the largest to fly without any fuel and support from fossil fuels . ZeroAvia said the prototype would cost around half as much to fly as a conventional plane , and added the electric powertrain had applications across a range of aircraft and sectors , including cargo , air transport and agriculture . The drivetrain will be leased to customers , who will pay by the hour .