Protuem Energy of the United States and Transitus Energy of the United Kingdom have signed a letter of intent to look for hydrogen production potential in the North Sea’s British, Dutch, Irish, and Norwegian seas.

Blue hydrogen, which use the same procedures as grey hydrogen generation but integrates carbon capture and storage technology to decrease emissions of any damaging greenhouse gases, is being pursued by Proteum and Transitus.

Hydrogen is a popular alternative energy source among energy firms. An deal between GE Gas Power and Shell Global Solutions, an LNG division of the firm, was signed last month to explore blue hydrogen technologies as a means of reducing the carbon intensity at Shell’s global LNG facilities. However, the universal resource for global decarbonization initiatives may not be hydrogen.

One of the most environmentally friendly processing techniques today is green hydrogen. With no carbon emissions at all, it employs renewable energy to generate an electric current that can separate water into its constituent elements, oxygen and hydrogen.

The question is whether using those renewable resources to produce electricity is preferable. Green hydrogen is not a miracle cure, according to a House of Commons report that was released this week.

Although hydrogen is the most prevalent element in the universe and a powerful energy carrier, House leaders warned its usage in the future is likely to be restricted to specialized applications.