lion said:Has anyone here tried to plan/spec out a level 3 generator setup (25 kW output should be enough)? I understand it won't be cheap, but would love to build a trailer with a generator good enough for helping stranded drivers, and EV events.
25kw is ~34hp. You don't really ever want to run at 100%, so you'd probably want something around 70hp.
At 70hp, you're looking at a mid-range sport motorcycle engine. 650-800cc. Not nearly as small as a dedicated generator, though not nearly as heavy as the diesel gennies.
I've thought about doing something like this, and ultimately, it's just not feasible or cost effective. However, for the specific case of emergency support, you might be able to charge like $50 for the service to recoup your costs, while still be cheaper than a tow truck.
Long story short, you're probably looking at a $3000 setup. If you buy a commercial product in that range, they're almost always diesel, way larger than you can transport daily, and start around $6k.