EVs and The Bug Out

I am an Engineer/ Fire Engine Operator on a Type 3 wildland fire engine. I can pump 300 psi, at 2000 rpm engine speed, on a 5000 ft. hose lay all day long and use less than a 1/4 of a 70 gallon tank. If it was electric I would have to deploy a 1/4 acre of solar panels to power that (I jest).
One huge benefit of fossil fuels is we can bug out quickly by just disconnecting the hose at the pump panel on the truck. If you face a blowup or burnover and have solar panels deployed what do you do? We operate in the back country and at times we have over a hundred vehicles, large trucks and pickups, in camps in the backcountry. How are you going to charge all the trucks?
We have a Hotshot crew here in California testing the new Stihl battery powered chainsaws. They cut great but the saw team has to carry 8-10 batteries and also carry a solar panel that charges like one battery all day. It is a total mess. Adds weight, decreases mobility, adds hazard, ....
I don't think you are far behind with the 1/4 acre of panels to run that pump. Probably more. The problem is, even if you could deploy them and they charged fast enough to be useful, you are in the middle of a forest fire and the smoke is likely blocking out the sun. The Illuminati will eventually recognize that these transportation and support vehicles aren't going to work as EV's until there is an order of magnitude leap in technology, and I think that's a ways off. Farming is another area of concern. Forget the acquisition costs, a harvester combine runs nearly 24 hours a day for 2-3 weeks straight during the picking season and tractors do same in the planting season. Think they are going to be able to swap humongus batteries in the field every couple hours?