12V DC Power Group

Editor of Energy Self Sufficiency Newsletter, Larry Barr, wrote in with: Since you like the Little Houses group, you may also be interested in the 12 VDC Power group which is dedicated to generating your own power and using it, and in Energy Self Sufficiency Newsletter, a monthly online FREE publication for those living off-grid and those who want to.’ Thanks Larry!
Update: There’s also the Green-trust for renewable energy sources.