The global aviation industry has a massive climate problem, and many are looking to Norway for a possible solution. The country wants all short-haul flights to be conducted with electric planes as early as 2040. But doubts persist about whether the…
The days when airliners took off from Säve airfield near the Swedish city of Gothenburg are long gone. What's left now is an access road with a rusty gate, wooden barracks in an advanced state of decay and a container village that is used as a hostel. Anyone wishing to visit Heart Aerospace has to seek out the only new building on the forested site.
What is clear is that something has to change. Airplanes are responsible for around 2 percent of global carbon dioxide emissions. And Norway is particularly well suited as a real-world laboratory for an experiment like electric aviation. Because of its exceptionally beautiful but difficult-to-access landscape, airplanes are often the only way for people to stay connected there besides smartphones and the internet.
As such, conditions are perfect for electrically powered seaplanes like the ones currently being developed by the Norwegian startup Elfly. They are building a high-wing aircraft with nine seats and two propellers engines powered by batteries, in partnership with the Norwegian Research Council. Called the Noemi , the high-wing plane is expected to land in fjords on the west coast to drop off passengers and cargo starting in 2030.
The aging of the power storage units after only a few weeks of operation and the associated decrease in range also frightened the developers. According to Tecnam's calculations, even with extremely gentle handling, the capacity falls below a critical value after just a few hundred hours of operation. Airlines would then be forced to buy new batteries – and the operating costs for the planes would be horrendous.
Parr sees electric propulsion as the optimal solution for aircraft with nine to 19 seats that have to cover distances"of 40 to 50 nautical miles," around 90 kilometers, which is practically nothing in aviation. For longer distances, developers of the technology have so far been faced with a dilemma that is almost impossible to resolve. The more non-stop flight time an aircraft is expected to achieve, the larger and heavier the battery becomes, which in turn consumes energy.
This crutch has since disappeared in modern battery-powered vehicles, and the era of plug-in hybrids is drawing to a close. In the air, too, the electricity-fuel mix is only considered to be a temporary solution.
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