The alternative energy generation program started in the early 80s at the University of Brasilia. Later LEA, Energia LTDA and TipoD along with other partners and sponsors began to optimize the technology. The G1 and G2 are the 1st models, nowadays the G3 is near the end of development. Original video footage: http://www.youtube.com/gilacauan Model G2 is avaliable for sale. See more: www.tipod.com.br