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Scotland's abundance of wind means generating green hydrogen from electricity has huge potential.

An initial £5.8bn injection was earmarked for green projects including "carbon capture, green hydrogen, ports, gigafactories and green steel," according to UK government documents.

Green hydrogen has long been touted as the climate-friendly energy solution of the future.

Through hours of interviews with industry stakeholders, reviews of documents and their participation in conferences and workshops, the researchers have identified the main reasons behind the lack of investment in green hydrogen.

"We wondered why no one is investing in an industry that is so massively hyped and talked about so much. At the same time, it's concerning that something with the potential to accelerate the green transition is struggling to get off the ground. What our study shows is that green hydrogen is simply seen as a bad investment," says Oliver Bugge Hunt.