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Electric car usage is getting more popular and countries actually take big steps in this area. Petrol is one of the most pollutive resources in the world. Many countries are trying to lead people into using electric cars and get rid of the cars that work on petrol.
For example, in 2018, more than half of the cars sold in Norway were electric cars, and in July 2019, half of the cars sold in the first 6 months of 2019 were electric.
Countries such as the UK are planning to ban the sale of petrol or diesel cars by 2040. And now this revolutionary movement in cars jumped to aviation too. Electric planes are actually a thing now, but only for small aircraft.
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Different companies are now developing small electric aircraft and in just a few years, they'll probably release them in the market.
But, it's not quite possible for the bigger aircraft, because of the energy storage. The most advanced lithium-ion battery currently available is not in the level of jet fuels, in terms of energy-containing.
However, Israeli firm Eviation revealed a prototype of an all-electric passenger aircraft and they claim that it will be the first one in the world. It'll be able to carry 9 passengers for 1,000 kilometers and it's expected to be released in 2022.
But again, Alice also an alternative for small journeys, but for bigger passenger flights, it can't be used, nor for short-haul flights.
In the next 20 to 30 years, we're likely to see short-haul flights with hybrid aircraft that combine current turbofan engines with new electric propulsor systems.
However, at least for now, there are no alternatives for jet-fuelled turbofans in the planes most of us board.