If hydrogen becomes a suitable way to store intermittent electricity from wind and solar, use of the hydrogen to supplement or replace natural gas in power plants would be attractive. The substitution reduces carbon dioxide generation.
UK has a blending trial planned to demonstrate utility.
Some say hydrogen is so expensive to produce by electrolysis, this can’t be economical. One would hope for detailed numbers for this approach vs battery storage or other energy storage methods. What is the total cost over the service life of the facilities required?