3 min read
Highlights
On-farm fertiliser production could become a strategic buffer for Australian agriculture and perhaps the world:
- Nitrogen is abundant in the atmosphere: Plants still need it converted into usable forms such as nitrate, ammonia or urea.
- Modular production could strengthen resilience: Local supply may reduce exposure to gas markets, shipping routes, ports, insurance costs and geopolitical shocks.
- PlasmaLeap is developing a different production model: Its reported systems use air, water and electricity to produce nitrogenous fertiliser close to where it’s needed.
- The opportunity is complementary rather than universal: On-farm nitrogen will need to work alongside biologicals, soil amendments, precision agriculture and improved crop genetics.
A new layer in fertiliser resilience
On-farm fertiliser production belongs squarely within the Energy accelerator of my TECHXponential™ model, even though not every technology fits neatly within it. It shows how renewable electricity can become more than a source of power. It can become a locally produced farm input and a strategic resilience asset. This matters because the opportunity reaches far beyond the farm gate.
Recent work on the soil microbiome, agricultural biologicals, MaxSil
and fertiliser resilience has highlighted a central truth. The future of agriculture won't be secured by one miracle input. It will be built through better coordination between biology, chemistry, energy and data.
The disruption around the Strait of Hormuz has made that reality sharper. When shipping routes, ports and international supply chains become uncertain, fertiliser availability can quickly become food-security and balance-sheet issues.
While local production may not eliminate conventional fertiliser, it could provide a buffer, a seasonal supply or part of a farm's nitrogen requirement. That flexibility could be strategically valuable.
Resilience isn't the opposite of efficiency. It’s what makes efficiency survivable.
What does making nitrogen from air mean?
The atmosphere is approximately 78% nitrogen. However, plants can't use atmospheric nitrogen directly. It must first be fixed, which means converting nitrogen gas into plant-available compounds.
Conventional fertiliser production relies heavily on the Haber-Bosch process. It combines nitrogen and hydrogen at high temperature and pressure to produce ammonia, which can then be converted into fertilisers such as urea and ammonium nitrate.
Haber-Bosch benefits from enormous scale, but it’s energy intensive and geographically concentrated. Its economics are also closely connected to natural gas prices. That concentration has helped lower costs during stable periods, but it creates vulnerability when energy markets or global logistics are disrupted.
The emerging alternative is not simply farmers making urea in a shed. Different technologies produce different nitrogenous fertilisers. Some create ammonia, while others create nitric acid or nitrate solutions. The chemistry matters.
PlasmaLeap and the modular opportunity
The RenewEconomy report, highlights Australian company PlasmaLeap, who are developing containerised systems that use air, water and electricity to produce nitrogen fertiliser.
Its reported pathway uses high-voltage electricity to convert atmospheric nitrogen into nitric oxide. That nitric oxide can then be processed into nitric acid and nitrate-based fertilisers.
PlasmaLeap says its systems are designed to operate with variable renewable electricity and respond quickly to changing power availability. That’s important because solar and wind generation aren't constant unless complemented by battery storage. A modular chemical system needs to work with that potential variability rather than depend on uninterrupted baseload power.
The company has also reported that its technology could avoid up to nearly 11 kilograms of carbon dioxide for every kilogram of nitrate produced, depending on the electricity source. That’s a company-reported claim, not an independently verified industry benchmark, so it should be treated as an important proposition requiring further commercial and lifecycle validation.
The reported Series A backing of almost A$30 million suggests investors see a meaningful opportunity. The harder question is manufacturing scale. Demonstrating a working unit is one challenge. Producing, installing, operating and maintaining thousands of reliable units across different farming environments is another.
PlasmaLeap’s eNFix system illustrates the proposed model. A farm could use a solar array or a three-phase grid connection, along with a suitable water source. Alternatively, several farms could participate in a local production hub.
Air + water + renewable electricity = a potential local nitrogen buffer.
One ecosystem, several pathways
PlasmaLeap isn't working alone. Australia’s emerging nitrogen technology ecosystem includes several companies, research groups and development programmes. For instance:
- Jupiter Ionics is part of the CSIRO HyResearch programme project with Monash University, SJDC Produce and WesCEF as partners. HyResearch provides the research and industry context, while Jupiter Ionics advances the technology towards commercial deployment.
- UNSW catalyst research is exploring ways to produce fertiliser from waste carbon dioxide and nitrogen pollutants, as well as developing catalysts for ammonia and nitrogen conversion. That represents a distinct research pathway focused on waste streams and catalyst development.
These processes shouldn’t be treated as interchangeable. Some target nitrate. Some target ammonia. Others focus on recovering nitrogen from waste streams or improving the efficiency of existing reactions.
The commercial winners may not be the technologies with the most impressive laboratory result. They may be the systems that are safe, serviceable, affordable and simple to integrate into real agricultural operations.
The broader future of food
On-farm nitrogen production will also need to work alongside precision application, digital farm management, crop genetics, agricultural biologicals and soil amendments such as MaxSil.
A nitrate solution produced locally still needs to be applied at the right rate, at the right time and in the right place. If nitrogen use efficiency remains poor, producing fertiliser with lower emissions won't solve the whole problem.
Future food production must support 11 billion entities, comprising 9.7 billion humans and 1.3 billion pet cats and dogs. That demand will require coordinated energy, biology, chemistry and data systems.
The farm of the future may not be completely self-sufficient. It may be selectively independent. It could produce some nutrients locally, source others regionally and use digital systems to optimise every application.
That’s a more realistic vision than total replacement. At least in the short to medium term.
The strategic question
The question isn't whether modular nitrogen production will immediately replace centralised fertiliser plants. It won't.
The more important question is whether farms and regional agricultural hubs should have additional options when global systems become fragile.
I believe the answer is yes. Local nitrogen production could reduce exposure to volatile gas markets, shipping disruptions, port congestion, insurance costs and geopolitical shocks. It could also support emissions reduction when powered by genuinely low-emissions electricity.
The future of fertiliser won't be centralised or decentralised. It will likely be both.; again at least in the short to medium term
Centralised scale + modular flexibility = a more resilient nitrogen system.
To continue the conversation email me at tony@tonyhunterspeaker.com