The plan outlines a tiered system, with cleaner energy projects receiving more, and smaller credits going to those that use fossil fuel to produce hydrogen.
President Joe Biden announced billions of federal dollars for the creation of regional hydrogen hubs across the country. Hydrogen could be a climate-friendly alternative to fossil fuels.
Utilities from six Southeastern states have formed a coalition to seek federal funding aimed at furthering research into hydrogen as a source of energy.
The companies face an existential threat as more governments and businesses move to tackle climate change. So a growing number have their own plans to decarbonize, by creating renewable gas.