The Electra aero Dawn One solar/battery hybrid research aircraft completed its first flight.

In US, Skydweller Aero is developing a UAV operating on solar power designed to fly for 90 day missions. It may later be fitted with hydrogen fuel cel...

In New Zealand, Kea Aerospace flew its solar-powered Atmos Mk1 HAPS (High Altitude Pseudo Satellite) UAV

In Spain, Skydweller confirm the incorporation of a gaseous hydrogen fuel cell propulsion system into a solar-powered Si2 aircraft in order to extend ...

In Spain, Dovetail ElectricAviation is testing 600 kW hydrogenelectric powertrain for a 20 pax aircraft.

In UK, Ecojet airline is to acquire up to 70 hydrogen-electric engines in order to convert its conventionally-powered DHC-6 and Twin Otter aircraft, a...

In UK and the Netherlands, GKN Aerospace and Embraer are to collaborate on a hydrogen fuel cell powertrain that could be scaled up for a 90 pax aircra...

 In US, Joby Aviation has initiated the VTOL S4 prototype modified with a liquid hydrogen tank and fuel cell to increase the previous 155mi range...