There is significant downstream cost associated with intermittent hydrogen production. Just because it is possible to produce hydrogen from irregular power sour

There is significant downstream cost associated with intermittent hydrogen production. Just because it is possible to produce hydrogen from irregular power sources does not imply that the downstream process chemistry can efficiently operate that way. As a rule, you want to run a continuous process for cost/waste reasons. Ammonia isn't craft beer. You really don't want to micro-batch a 100 million tons of industrial chemical production unless you are okay with being extremely wasteful of materials and energy. You can solve the intermittency problem by building plant that acts as a hydrogen buffer to smooth out irregularities in hydrogen production. This substantially increases Capex/Opex that must be added to the cost of hydrogen that is already significantly more expensive than methane reformation. At some point, insisting that every step of the industrial chemistry process be done in a dis-economic way accumulates untenable product costs. People need to be realistic about what is achievable at scale and the influence of economics.