The year 2022 marks the 50th anniversary of my involvement in the development of wind power for generating electricity. During those 50 years, I did a lot of research on many aspects of implementing wind energy and wrote many research reports, brochures and books on the subject. Recently I have published my second book on offshore wind energy, Build Them at Sea, New Energy for the World, for a broad audience to introduce them to this important energy source for a sustainable future. I describe the policy, (technical) developments, construction, maintenance, and the vessels used and developed for this purpose. While writing, I concluded that in the coming years, we are going to make great steps: large wind turbines of 20MW, as high as the Eiffel Tower, new installation and maintenance vessels, drones for inspections, and robotised maintenance. But even more important is the development of floating turbines and the offshore production of hydrogen at sea. Competition for the most robust and cost-efficient floating design is ongoing and development of electrolysers is fast. With all of this progress, offshore wind energy is going to become the largest potential energy source.