Interesting:

Boeing-backed, hybrid-electric commuter plane to hit market in 2022

It’s a small plane, seating only 12, designed to go about 700 miles at an airspeed of about 340 miles per hour. It is to use two electric motors running off batteries, with a backup jet fuel powered generator to extend range and keep the craft airborne when the batteries run dry. Improvements in battery technology would allow the plane to be fully electric and to eventually extend range. As a small aircraft it is meant to operate from smaller non-hub airports, theoretically shaving hours off actual trip time due to avoiding the nightmare that is modern airport security theater.