Credit: PA/Daily Mail
Not the first plane to cross the Channel, not even the first electric, but it is an electric aircraft with definite plans for commercial development, with 2 & 4 seat variants in the works.
http://www.dailymail.co.uk/travel/travel_news/article-3117977/World-s-plug-plane-takes-Bright-sparks-Airbus-unveil-electric-two-seater-E-Fan-aircraft-Paris-Air-s-nearly-silent-flight.html
http://www.theverge.com/2015/7/10/8927841/airbus-e-fan-electric-aircraft-english-channel
The first person to fly a heavier-than-air aircraft across the Channel was Louis Blériot, going in the opposite direction, in a monoplane which bore his name, on 25 July 1909. In the last few frames of the video, there is what looks like a Blériot monoplane, with yellow wings, just left of centre.
Blériot monoplane
Credit: J. Klank/Wikipedia
https://en.wikipedia.org/wiki/Bl%C3%A9riot_XI / Airbus E-Fan 2.0 electric prototype aircraft Paris speeds of 136mph plane can fly for up to an hour all-electric enter service in 2017 2050 Airbus 100-seat electric plane fleet Airbus aircraft manufacturer plug-in plane Paris Air Show E-Fan 2.0 prototype endurance stay airborne for one hour carbon dioxide CO2 emission-free nearly silent in flight weight weighing less than half a tonne revolutionary flyer LiIon lithium-ion polymer batteries 31ft wings dual electric motors total power of 60 kiloWatts ducted fan electric motors prototype Airbus plans assembly line E-Fan at Pau south-west France /
