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Clean Tech & Aviation Source: Ars Technica August 17, 2026

World's Largest All-Electric Commuter Aircraft Completes Test Flight for $5 of Electricity

A 40-passenger electric airplane achieves a historic milestone by completing a 45-minute maiden test flight powered entirely by solid-state batteries for under $5.

World's Largest All-Electric Commuter Aircraft Completes Test Flight for $5 of Electricity
Image credit & sourcing: Ars Technica editorial breakdown.

In a major victory for sustainable aviation, the world's largest all-electric passenger aircraft has successfully completed its first full-scale flight test. The 40-seat regional airliner flew for 45 minutes over Moses Lake, Washington, using just $5.12 worth of grid electricity stored in high-density solid-state battery packs.

Compared to conventional jet-A fuel costs of roughly $800 for an equivalent flight duration, the demonstration highlights the dramatic operational savings potential for regional airline routes under 300 miles.

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Commercial certification is targeted for late 2028, with regional carriers eyeing regional hopping routes to drastically lower ticket prices and eliminate aviation carbon footprints.

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