ref Generators ... I have no direct experience of built-in generators, but from my second-hand info (internet posts, some youtube postings) it seems the built-in units that have auto-start, etc (dead handy I would think) have a downside. For some reason from what I have read & seen, they are very uneconomical compared to stand-along ones. no idea why that should be and hopefully someone will be able to say what is really whatI have encountered the issues with charging the chair. So far I have windled my way around a full or partial charge at many a coffee shop for the price of a coffee and slice of cake!
I agree that I won't be able to skimp on the solar, and have thought also about a generator for off grid. If I am lucky my new set of wheels might even come with one installed?