Cooking oil is set to illuminate the Euro 2016 via the Irish startup Greentech Biofuels, which has partnered with Ondaine Agri and the city of Saint-Étienne to illuminate the Stade Geoffroy Guichard, the football stadium in St Etienne. The principle is very simple: a biofuel is produced from cooking oil which is collected from restaurants and area businesses by Ondaine Agro. This biofuel is then used to produce electricity and light the stadium! Greentech Biofuels recycles cooking oil through a process called esterification, which uses little energy and does not consume water, therefore avoiding the...