Progress on the German 100MW Refhyne 2 renewable hydrogen project has been held back by UK electrolyser manufacturer ITM’s decision to trim down its expansion plans and by persistent regulatory uncertainty, Shell’s hydrogen business manager Frank Kiesslich said. The Shell-led consortium developing the site was close to taking a final investment decision (FID) in September last year, in line with initial plans, Kiesslich said at the World Electrolysis Congress in Dusseldorf.