Hidro

http://peswiki.com/index.php/Top_5_Exotic_Free_Energy_Technologies

James Kwok’s “Hidro” Tech Floating to the Top (Interview) – James Kwok’s “Hidro” commercially available technology allows for energy to be harvested from gravity induced pressure differentials in columns of water. “Ash” from Panacea-BOCAF recently visited Hidro, witnessed a demonstration, and performed tests. Two universities have also confirmed Kwok’s claims. (PESN and BeforeItsNews; April 17, 2011)