when we find a nice state park with good showers, we indulge in long, hot showers.
or you can do the same in an RV park, and many COE parks have nice bath houses.
for boondocking, you'll probably want more batteries than you have. we tend to use quite a lot of energy. TV, PC, lights, microwave, coffeepot, toaster. So we have some solar panels on top to help keep our battery bank charged up.
Most state and national parks have a "quiet hours" ruling re running generators, but it's not a problem if you have the solar panels.
Now, if you're out in the middle of nowhere, really boondocking, you won't have to worry about running your genny anytime you want or need to.