Australia Faces Fertiliser Crisis, Low-Cost Renewables Could Provide Relief
Australia is currently facing a significant fertiliser crisis, exacerbated by geopolitical tensions impacting supply chains. The closure of the Strait of Hormuz has disrupted the country’s nitrogen fertiliser imports, on which it heavily relies.
Dependence on Imported Fertilisers
Approximately 70% of Australia’s fertiliser is imported, and urea, the primary nutrient for crops, is no longer produced domestically. In the previous year, Australia imported about 3.8 million tonnes of fertiliser, with 64% sourced from the Gulf region. The recent supply disruption has led to a doubling of delivery prices, and current domestic stocks are expected to last only until mid-April.
Impact on Agriculture
- Increased fertiliser prices may result in lower crop yields.
- Farmers may face challenges in meeting market demand.
- Higher food prices affect consumers.
As a major food exporter capable of feeding 80 million people, Australia’s reliance on imported nitrogen fertilisers presents a critical vulnerability. This issue requires urgent policy attention comparable to that given to liquid fuels and essential minerals.
The Promise of Domestic Production
Stable fertiliser components such as potash, phosphate, and elemental sulfur can be stockpiled easily. However, nitrogen, which constitutes the majority of fertiliser use, poses storage challenges. Urea, for instance, is sensitive to heat and humidity, and anhydrous ammonia requires refrigeration. No Western nation currently maintains a reserve of nitrogen fertiliser.
To become self-sufficient, Australia must enhance its ammonia production capacity. Traditional gas-based synthesis, impacted by high costs and carbon emissions, is outdated. Instead, investing in electricity-based ammonia production can provide a sustainable alternative with zero emissions.
Green Ammonia Production
Green ammonia, produced through the electrolysis of water and renewable energy, is being developed in various countries, including China and Saudi Arabia. The estimated cost of producing green ammonia is around $800 per tonne at competitive electricity supply rates.
International prices for ammonia currently range from $500 to $900, indicating that local production could be economically viable. Implementing government incentives, such as hydrogen production tax credits, could further reduce these costs.
Strategic Resilience Initiatives
The Australian government has recently enhanced the role of Export Finance Australia through the Strategic Reserve bill. This legislation allows for price stabilization and stockpiling of critical inputs, similar to measures proposed in the SECURE Minerals Act in the U.S.
Establishing a Dual-Tier System
- Stable products like potash can be stockpiled at distribution hubs.
- Hydrogen-based products can be financed through domestic production commitments.
The financial model may draw upon fuel excise from the agricultural or mining sectors, ensuring cost recovery while enhancing supply resilience.
Urgency for Action
Australia’s current dependence on nitrogen fertiliser imports exposes its agriculture sector to significant risks. The country possesses vast renewable resources that can be tapped to create a more stable fertiliser environment. With the technology available and legislative frameworks emerging in international markets, the opportunity to develop a robust domestic fertiliser industry is ripe.
The government must act decisively before the crisis is forgotten. Securing a sustainable supply of nitrogen fertiliser is not just an economic necessity but a strategic imperative for Australia’s agricultural future.
