Again all the comments so far on electric vehicle have not taken into account the Chines market the biggest in the world for vehicle and electrics and BYD produce more than Tesla which is second. See
https://www.bloomberg.com/news/featu...ing-like-tesla
Note Warren Buffet has a shares in this company and he is not known for making bad choices.
On aircraft they will still need an engine to power them even if the propeller or Fan is driven by an electric motor till batteries reach 2.5Kws/hours/kg. But using an electric transmission means propellers/fans can be positioned about any place on the airframe. Also the ic engine generator set can be optimised for high power density and placed in the best place for weight and balance. If the genset can run on Diesel/turbine fuel with lower fuel burn then the weight saving in fuel would compensate for any overall increase in power system weight plus the better aerodynamic would result in lower fuel burn another help.
So I think there are benefits to this system even if it still burns liquid fuel.