TO UNDERLINE its ambition to make all domestic flights electric by 2040, Norway recently showcased a two-seater electric aircraft produced by Avinor.

The demonstration attracted a lot of attention and renewed talk of Norway’s bold deadline for the skies, the one domain that has so far largely eluded electrification.

Yes, there was Solar Impulse, powered solely by the sun, and other experimental aircraft. But they aren’t mass transit solutions.

Other modes of transport are way ahead when it comes to electric power. By 2025 in Norway, all new cars must be electric. Ships are switching …