However there are far far larger projects going on over the world. China is building multiple GW of wind and solar to power a massive ammonia/green hydrogen site right now. I frequently hear of sites in Spain in the hundreds of MW range.
The US has been pivotal in the invention of these technologies, but hyper-conservatism to protect fossil fuel interests is preventing us from getting the benefits as quickly as we should.
The US isn't a centrally planned economy (sort of) so the more economical option wins.
The ammonia plant is built for intermittent operation, so it can shut down or reduce output when there's no wind. No need to store much electrical energy. Storage tanks hold the ammonia. It's a reasonable idea, but is it cost-effective? No numbers are given. Still, fertilizer independence alone is worth something. You can do this anywhere with wind or sun.
Would like to know the capex numbers though. Is it viable in todays market to have it stood idle?
In other words, to split 1 mole (18 grams) of water into constituent parts (molecular hydrogen and oxygen), you need to invest at least 300 kJ of energy. If you then use 1 mole of hydrogen to produce ammonia, you can get back 30 kJ of energy.
This is chemically pretty much the best case from the thermodynamic efficiency standpoint (especially when you also factor in the entropy changes) with almost zero potential waste.
The kicker is, of course, that you need extremely high temperature and pressure for the reaction to work. And this is just hard to do on small scale. But that's not a theoretical barrier, but "just" a question of clever engineering! It's great to hear that we're solving these issues.
My mind goes to energy storage. If it was a smart way to do that, people would probably be doing it, who knows. Well, someone wrote a paper about it in 2022: https://www.sciencedirect.com/science/article/abs/pii/S09601...
Same goes for renewables, and electrolyzers. All evidence points to a future with renewable energy costing a small fraction of fossil fuels, and electrolyzers being cheaper than hydrogen from gas. But the future needs to be built. We can either lose out and buy the tech from others, or be leaders and reap the early rewards.
> owned by farmer cooperatives
No way for a Corp to benefit=communism
I suspect the interests/actions of lobbyists for certain companies/sectors had significant influence on things like taxes, and is a type of central planning.
It's different than most central planned economies because there are two entities operating in parallel (a quasi-private corporate state in addition to the usual government state), but I'd say it's still centralized/planned, even if it's not the state/government doing the planning.
Technology Connections goes into this in exhaustive detail: https://www.youtube.com/watch?v=KtQ9nt2ZeGM
Also, you may not have heard that the Trump administration is actively stonewalling green energy projects, regardless of their economic prospects: https://www.thecooldown.com/green-business/renewable-energy-...
Fritz Haber initially demonstrated his process producing 125 milliliters per hour of ammonia in a "tabletop machine", so it's obviously technically possible. Typical process parameters are about 200 bars and 500 degrees C, so it's not trivial but also not outside of what a dedicated hobbyist could reach. I'm pretty sure it's not economically feasible at small scales though. Even the earliest industrial plants in the 1920s made 20 tons of ammonia per day. It will be vastly cheaper to just buy the stuff in bulk from a plant churning out hundreds of tons per day than it will be to make it yourself at a rate of 2 liters per day.
That said, go for it! A factory is just a room, and similarly a chemical reactor is basically just a steel drum.
Basically, every single person on earth is subsiding the big oil by bearing the consequence/cost of the higher CO2 concentration.
https://fred.stlouisfed.org/series/DHHNGSP
The cost of wind power and solar power have fallen dramatically, but without accounting for the externalities of CO2 emissions, natural gas is still the cheaper way to make ammonia.
Click to learn more. Online renewable ammonia demonstrator, powered by wind turbines in Morris, Minnesota, USA. Source: University of Minnesota.
A pioneering facility has come online for its first season of low-carbon ammonia production in Minnesota, USA. The plant is being turned on gradually, with a target of one ton per day of low-carbon ammonia production for local fertiliser offtake. Wind energy powers the electrolysers that supply hydrogen to a Haber Bosch plant. To manage the fluctuating renewable energy supply, the rate of ammonia production can be adjusted using new modeling and control systems.
The plant is located at University of Minnesota’s (UMN) West Central Research and Outreach Center in Morris, rural Minnesota. It is a collaboration between UMN, Research Triangle Institutes International (RTI International) as well as Casale. The project aims to address high fertiliser prices and supply chain instability, while creating revenue streams within the state. This facility is an upscale of 2013’s successful pilot plant, and can be expanded further to a network of commercial, renewable ammonia generation hubs owned by farmer cooperatives. The ammonia produced can be stored in nurse tanks and/or coupled with carbon dioxide by-products from ethanol production to produce urea, the most common form of fertiliser used in Minnesota.
It seemed like an elegant concept when we were first looking at it that you could take a wind turbine, and that’s producing energy from wind above a cornfield, or small grain field, and then produce a nutrient that you can use right underneath the wind farms in rural Minnesota… There are no ammonia or nitrogen fertilizer production facilities in the state other than our small systems here. If you can produce a moderately priced nitrogen fertilizer that’s consistent, year in and year out, then farmers can budget for it, and they can market crops to that point in time.
Michael Reese, Green Ammonia Research Lead, University of Minnesota Twin Cities press release, 26 Jun 2026
Essentially, the wind or the sun is our feedstock. We typically design a chemical plant to run at steady state and produce at a constant rate, assuming that we have a constant supply of our feedstock. That’s not the case with green chemicals or green ammonia specifically. In order to somehow absorb the fluctuations in wind availability, you need to have a significant storage of hydrogen to be able to absorb these fluctuations, which is very costly. On the other hand, if you allow the plant to operate dynamically, you minimize the demand for storing hydrogen or storing power and hence, you can have a much tighter design, a much, much more economical design. It’s about the economic development of the state… One can see a model of co-ops that will come together and hopefully develop these plants with support and loans and credits from the state.
Prodromos Daoutidis, Professor of Chemical Engineering, University of Minnesota Twin Cities press release, 26 Jun 2026
In AEA’s December 2025 episode of Project Features, project partners explained the Morris facility in detail among other ammonia energy R&D pioneering demonstration plants and start-up companies originating from the UMN. The recording and presentations can be found here.
Explore the journey of the demonstrator plant, plus other ammonia energy start ups originating from the University of Minnesota.