Awesome to see greener options coming to the road!
For us, we selected a 17' fiberglass RV with double hull construction and parts meant to last 'a lifetime'. Our Oliver Travel Trailer was custom constructed for us to be fairly off-grid for extended periods of time.
We choose small to be able to go down backroads, increase our options of places to stay and to lighten our weight (and thus, hopefully, our gas consumption). We used to tow with a biodiesel running Jeep, but it proved to not be up to the task of full time towing. For now, we're in a gas guzzling Toyota Tundra.
Our green options include 200w of solar power, and converting almost everything to run off 12v. We're able to run our two laptops, lights and satellite internet off the solar - keeping us off-grid and working from amazing places.
We also converted our Honda 2000 generator (our back-up power source) to run off propane, giving us a slightly greener and cleaner burn, and reducing the need to carry a fuel tank.
With our small space, we don't have room for a composting toilet or gray water capture system. But we have learned to be highly efficient with our water usage, regularly making 38 gallons of fresh water last both of us over 2 weeks.
We just got back from Burning Man (where we hosted a huge camp of about 90 of us full time travelers from around the world, including some NuRVers), and looks like we'll be hanging around the Bay Area for about a month. If you'd like to get together, give us a shout.
- Cherie