Great news!  Elithis Tower in Dijon France is the worlds first energy positive office building.  This building actualy creates more energy than it uses.  Ecovations believes this is the future of construction.  Every office building, home or structure in the future will generate it’s own power and sell it back to the grid.  Imagine that, a building that pays it’s own mortgage!

For more info: http://inhabitat.com/elithis-tower-the-first-energy-positive-office-building/