As I said in another comment, this is a step towards making a more efficient hybrid plane for trips under 500 miles, of which about 4 million are made per year in the U.S. alone. Having enough battery power to take off efficiently makes those trips a lot more economical. On longer flights, fuel for takeoff is a lot smaller portion of the overall costs and doesn’t matter as much. Except for all the fossil fuel burned, of course.
As I said in another comment, this is a step towards making a more efficient hybrid plane for trips under 500 miles, of which about 4 million are made per year in the U.S. alone. Having enough battery power to take off efficiently makes those trips a lot more economical. On longer flights, fuel for takeoff is a lot smaller portion of the overall costs and doesn’t matter as much. Except for all the fossil fuel burned, of course.