Some interesting research & possibilities...
Water Powered Car - video (http://www.metacafe.com/watch/67009/water_powered_car/)
The World of Free Energy (http://www.free-energy.ws/lindemann-1.html)
Radiant Energy (http://www.wanttoknow.info/radiantenergy)
Pioneering U.S. renewable energy lab is neglected (http://www.iht.com/articles/2007/01/22/business/lab.php)