DW Planet A investigates why fully electric aviation remains elusive despite decades of development, visiting a Swedish flight school training pilots on the certified Pipistrel Velis electric aircraft.
Key insights:
Battery energy density sits at just 2% of conventional jet fuel, making long-haul electric flight physically impossible with current technology — a Boeing 747 battery would weigh ten times the heaviest payload ever lifted.
Electric motors are up to 3x more efficient than fossil fuel engines, making short-range and pilot training applications already commercially viable.
Even by 2050, purely electric aircraft are estimated to cover only 0.2% of global aviation emissions.
Hybrid electric aircraft are considered the realistic near-term leap — IATA projects hybrids could contribute to a 40% emissions reduction by 2050, with longer flights relying on blended biofuels and hydrogen.