The world’s largest hydrogen-electric, propulsion-powered zero-emission aircraft

Alaska Airlines partners with ZeroAvia to retrofit a hydrogen-electric propulsion system into a Bombardier Q400.

Alaska Airlines has partnered with ZeroAvia, a U.S.-based company that designs and builds zero-emission, hydrogen-electric aircraft propulsion systems to retrofit a Bombardier Q400 regional turboprop with a hydrogen-electric propulsion system.

The retrofitted aircraft will expand the reach and applicability of zero emissions flight technology, further advancing the aviation industry’s quest towards achieving net-zero carbon emissions.

At a recent event held at ZeroAvia’s Paine Field research and development site, Alaska Airlines’ regional carrier, Horizon Air, formally handed over the 76-seat Q400 aircraft to ZeroAvia for research and development purposes. The aircraft was repainted with a special livery to highlight the innovative mission of this partnership.

ZeroAvia debuted its multi-megawatt modular electric motor system at the event, demonstrated with a propeller spin aboard the ZeroAvia’s 15-ton HyperTruck ground-test rig. The electric motor technology, combined with higher-temperature PEM fuel cells and advanced power electronics, is one of three key building blocks for enabling commercially-relevant hydrogen fuel cell engines for larger aircraft.

ZeroAvia’s hydrogen-electric engine uses fuel cells to generate electricity from hydrogen fuel before using that electricity to power electric motors, which turn the aircraft propellers. The certifiable ZA2000 system will include ZeroAvia’s High-Temperature PEM fuel cells and liquid hydrogen fuel storage, integral to delivering the necessary energy density for commercial operations of large regional turboprops. The company has already established an engineering partnership with De Havilland of Canada, the original manufacturer of the Dash 8 family of aircraft, to enable the exchange of data and expertise with the airframe.

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