alliemac9, I have one of those, use it on my van for various things including hauling the garbage cans to the dump. Would be an option except my bike rack is taking up the trailer hitch. Looked into a way to hook up both, not really practical without serious modifications.
I've looked a little at solar, and for cheep units, we're looking at about $100 per 100w. I've also looked at the yeti power packs, which may be an option sometime in the future.
As for powering photographic stuff, I'm looking at 2 1600ws strobes, 2 laptops, 3 battery chargers, phone, and sometimes the camera for timelapse work. Can't always get the rv or cord close to the shoot. I've been shooting kids little league team and individual pictures, some times for 6hrs straight. Seattle weather precludes depending on solar for your main source of power.
For a short time, alternatives might work, but since I'm moving and it may be up to 6 months before I get all my household stuff out of storage. Makes storing equipment I know works a challenge. A small, securable trailer that could hold a couple of tables, canopies, lights and stands, a small ladder and the various other stuff I carry to a shoot plus a couple of bikes, is looking attractive. I use the bikes to get to on course sites when shooting 10k and marathon road races. (the bikes are electric) A small trailer hardwired for the generator/solar/battery might be interesting. That way I'm not tripping over all that stuff when not in use.
1998 Class C Lazy Daze 26 1/2 island bed
banks intake/exhaust
wifi/4g/siriusXM/DTV/DirecTV/CB
2xGeorbital electric bike conversions