Scotch whisky maker Glenfiddich has begun converting its delivery trucks to run on low-emission biogas made from waste products from its own whisky distilling process as part of a "closed loop" sustainability initiative, it said on Tuesday.
Glenfiddich said it has installed fueling stations at its Dufftown distillery in north-eastern Scotland that use technology developed by its parent company William Grant & Sons to convert its production waste and residues into an Ultra-Low Carbon Fuel (ULCF) gas that produces minimal carbon dioxide and other harmful emissions.