RE:EcoJet is actually an electric plane prototypeThe fact the model is electric dont mean the plane will be.
Today for a model it s much more easy with a full electric system (flight controler + esc + motor) than a mix electric controler and gaz motor.
It s much more simple, cheap, very clean (gaz motor are so messy), and you can have a 30min autonomy. More than enought for some flight test.
But electric technology is not ready at all for real plane where you need autonomy.
It s ok for a trainer where you need to make some tour de pistes... but that s it. You canot go farr.
The transition will be made with burned hydrogen maybe the next 10 years.
We are speaking about 20 to 30 years for the fuel cell technology.
Electric with battery technology on a middle range plane, we will not live longuer to see that.