The Grangemouth industrial complex in Scotland faces the imminent closure of its only oil refinery, threatening 400 jobs. To mitigate this, Project Willow, a £1.5m feasibility study funded by UK and Scottish governments, envisions a green future for the site. The report by consultants EY identifies nine innovative ideas that could be developed with private sector investment. These include hydrothermal and dissolution plastics recycling, acetone-butanol-ethanol biorefining, second-generation bioethanol, anaerobic digestion, and more. One of the key technologies proposed is hydrogenated esters and fatty acids conversion, requiring sustainable hydrogen production. Additionally, hydrogen fuel switching and e-methanol for aviation fuel could provide low-carbon solutions, aiding in emissions reduction. The study highlights the need for investments ranging from £15m to £2bn, with job creation potential between 35 and 270 across various projects. The push for renewable energy sources is evident with the focus on green hydrogen production through electrolysis. The potential applications of e-methanol and e-ammonia showcase the versatility of hydrogen in decarbonizing industries like aviation and shipping. However, challenges such as the cost of renewable electricity and the need for substantial investments are acknowledged. Overall, the report conveys a positive sentiment towards these sustainable innovations, emphasizing the long-term benefits in terms of job creation, emissions reduction, and environmental impact. It also calls for policy reforms to support the transition towards a greener industrial landscape.