The World Energy Congress is where the big multinationals present their newest energy innovations. At this year's event in Montreal, international companies wanted to show off their renewable investments. But is it all just a dance on the convention floor? We talked to Tony de Vuono of AECL, Henrik Hudsk of Vestas, Nany Mohn of Alstrom, Bob Fesmire of ABB, and Rudolf Sommer of EnBW. Check out their presentations and tell us if you think they can significantly change how we use and generate energy.