Grangemouth: Green projects at oil refinery site could cost £13bn March 12, 2025 Plans for new green projects at the Grangemouth oil refinery site in Scotland could reportedly cost up to £13bn. A feasibility study of possible options for the site – dubbed Project Willow – has listed nine opportunities including recycling plastics and producing biomethane, to create a “flourishing low carbon hub” over the next two decades, [...]