Universal Hydrogen proposes converting Dash 8 and ATR 42 regional airliners to hydrogen power while avoiding the need for costly refueling infrastructure.
The all-electric VA-1X aircraft is expected to enter service in 2024 and will be able to carry four passengers up to 100 miles at speeds of around 150 mph.
NDB says its self-charging nano diamond batteries will be far more efficient than current technologies and will not require any supporting infrastructure.
Data gathered from Spire's satellites showed a 43 percent reduction in flights, resulting in a cut in carbon dioxide emissions of just over 70 percent.