Fuel for Rockets and Zeppelins Points Toward Green Heat Solution
The biggest problem with hydrogen is that it’s currently expensive to make — and most often is derived by splitting up molecules of natural gas, producing carbon dioxide in the process. But that’s changing. Some of Europe’s most important names in energy and industry are racing to develop emissions-free ways of producing hydrogen. They’re focused on using electrolysis, where an electric current passes through water, splitting off hydrogen atoms from oxygen. That technology is well known and growing cheaper by the year. When it’s driven by renewable energy, it makes what the industry calls green hydrogen.