This plane may not be quite ready for prime time training but electric planes are coming and the main reasons will be low cost of operations and reliability. Anyone remember the GM EV1? The first ones had lead acid batteries and a 55 mile range. The second batch had NiMH batteries and a 105 mile range. They were not ready for prime time but some of the customers really liked them. Now I have a Chevy Bolt with a 260 mile range. The real win is that it costs about 2.5 cents a mile to drive and the only maintenance in over 60,000 miles of driving other than tires is that I changed the rear wiper blade. Plus it is responsive and just fun to drive. I should probably change the front wiper blades but I doubt that even if I drive 200,000 miles, I will ever need to change the brakes as I rarely use the hydraulic brakes.
Lithium sulfur batteries are coming that will have 3 times the capacity of current Lithium Ion batteries and will charge in 20 minutes. Yes, it is harder to make electric planes than electric cars but it is going to happen and economics will be the driver.