Yeah, I have the feeling that they're still very much in the initial design phase, but even so 100% electric doesn't even imply battery-electric (and even if Ve

Yeah, I have the feeling that they're still very much in the initial design phase, but even so 100% electric doesn't even imply battery-electric (and even if Venturi does plan on doing battery-electric, as their site vaguely implies, there's a good change they're basing their numbers off of an experimental battery chemistry that's being tested to replace lithium ion). Hydrogen fuel cells offer energy densities comparable to liquid fuels, although as mentioned previously they have volumetric issues due to the requirement for high-pressure and/or cryogenic storage of the hydrogen. I think the approach that these guys (https://en.wikipedia.org/wiki/Wright_Electric https://en.wikipedia.org/wiki/Wright_Electric) are taking is more likely to work out in the near term, since their main problem is finding places in an existing airframe to store a bunch of hydrogen tanks.