Cascina Braghiera, Cascina Marinona and Cascina Pelizzara – three state of the art business centres in Tortona in the province of Alessandria. These three businesses are all shaped around greening and, among other things, the production of renewable energy via biogas plants and solar power panel systems. We are greeted by Angelo Invernizzi and he introduces us to the three companies owned by his family. Our visit starts in Cascina Braghiera, the historical company founded by his father Adelio, a great innovator who a few years ago decided to pass the reins to his two sons Angelo and Carlo.