Greetings and Welcome to the Forums!
There is a ton of info on these subjects available here on the forums, and always a lot of good people willing to help. Go to the Forum interface, scroll down to the posts on Solar, and take a look there. We are doing a complete "eco-friendly" reconstruction on our AS and are currently in the process of doing a solar installation. We will post it to our blog as soon as we make a little more progress. You can check out what we are up to here:
After a lot of research, we found some very good people to work with on the Solar at AM Solar. Super friendly and they are experts in RV installations. I would highly recommend them as a resource. You can find them at:
Welcome to AM Solar - Your RV Solar Specialists since 1987
There is not as much info on wind power here, but you can take a look at this website for more:
Southwest Windpower: Renewable Wind Energy
As for bio-diesel and vegie conversions, Bio is pretty easy, almost any diesel will burn it. Vegie takes a major conversion, and a lot of work to produce the fuel. A major commitment!
Anyway, hope this helps!