I guess solar ovens fit the self-powered category:

http://store.sundancesolar.com/sospliposiso.html

http://www.cbsnews.com/stories/2007/07/02/earlyshow/living/recipes/main3004670.shtml

http://solarcooking.org/newsletters/scrapr05.htm
Nityam Privette
PO Box 1163
Rough and Ready, CA 95975
(530) 273-9378
www.solarovens.net

Bill Potts
Solar Oven Society
Marketing and Sales Consultant, Volunteer
952-890-0574
www.solarovens.org