Feadship has launched the first superyacht with zero-emissions hydrogen fuel cells at its Amsterdam yard. The legendary Dutch builder says this is the first hydrogen-powered superyacht in the world and represents five years of R&D. It’s 390-feet long and called Project 821. The hydrogen fuel cells can’t power the yacht across the Atlantic, but they can provide enough power to run the hotel load (including heat, air conditioning and other amenities) for a week without introducing any noise or carbon emissions. “The aim has been to develop a new, clean technology not just for this project, but for the world,”…