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On a hot March afternoon in Perth, motorists queue at a a suburban service station, watching digital price boards edge higher with every delivery.1
For many, the jump of tens of cents a litre in a few weeks feels less like a market fluctuation and more like a forewarning.
The immediate cause lies thousands of kilometres away, where Iran’s blockade and conflict around the Strait of Hormuz have choked a route that normally carries about one fifth of the world’s oil.1
For Australia, which imports about 90 per cent of its liquid fuels, the disruption has sent petrol and diesel prices sharply higher and revived a long‑running question: what happens when the ships stop coming.2
Politicians talk about “resilience” and “self‑reliance”, yet the policy choices now being made cut in two directions at once, doubling down on fossil fuel supply to keep the economy running, or using the crisis as a pivot to accelerate renewables, electrification and storage.3
The answer will shape not only household bills and regional jobs, but also whether Australia can meet its climate goals in a more volatile world.
From chokepoint to catalyst
In global energy markets, the Strait of Hormuz has always been a vulnerability, yet its closure in wartime has turned a hypothetical risk into a lived shock.1
Crude oil prices have surged, and liquefied natural gas (LNG) benchmarks have risen as traders price in the risk of sustained disruption to Middle Eastern exports.4
For most countries, the consequences are higher prices and inflationary pressure. For Australia, the impact runs deeper because the country relies not only on imported crude but predominantly on imported refined petrol, diesel and jet fuel from Asian refineries that themselves depend heavily on Middle Eastern oil.2
The choke is therefore two steps upstream, hitting crude flows into Singapore, South Korea and Japan, then rippling through to the refined products shipped to Australian ports.2
Short term, governments tend to prioritise keeping fuel flowing at almost any cost, tapping emergency stockpiles, offering subsidies or tax relief and urging producers to lift output.4
Longer term, however, repeated shocks change investment decisions by households, utilities and industry, shifting capital away from fuels exposed to geopolitical risk and toward renewables that run on sun and wind rather than shipping lanes.3
Crisis: accelerator or brake on clean energy
Past disruptions offer a cautionary tale. The oil price spikes of the 1970s spurred efficiency standards and nuclear expansion in some countries, yet also entrenched new fossil fuel sources such as North Sea oil and later Middle Eastern gas.3
The 2022 Russian invasion of Ukraine pushed Europe to turbocharge renewables and heat pumps, but it also triggered a scramble for coal and LNG that raised global emissions in the short term.3
The Iran war appears to be following a similarly mixed script. Analysts warn that rising oil and LNG prices above 100 US dollars a barrel will lift costs across transport, power and manufacturing, yet these same price signals make solar, wind and batteries more competitive on a lifecycle basis.3
The International Energy Agency expects clean energy investment globally to keep increasing, with solar alone projected to attract more capital than oil production, even as fossil fuel spending remains substantial.3
In the near term, governments under pressure from voters often reach first for familiar levers, such as expanding gas supply or coal generation, to stabilise prices and avoid blackouts.4
Whether this crisis produces a “renewable acceleration effect” or a “fossil fuel rebound effect” will depend on decisions made in the next few years about grids, storage, electric transport and industrial electrification, not simply on fuel prices themselves.6
Australia’s layered fuel vulnerability
Australia’s predicament is acute because it holds only about 30 to 37 days of petrol, diesel and jet fuel in domestic stocks, well below the 90 days required under its treaty obligations with the International Energy Agency.5
After years of refinery closures, just two facilities remain in operation, in Geelong and Brisbane, leaving the country heavily reliant on imported refined products from North and South‑East Asia.5
Those imports already travel through other narrow maritime passages such as the Malacca, Lombok and Sunda Straits, meaning a crisis in the Persian Gulf is only the first layer of exposure.2
Any further disruption in South‑East Asian sea lanes would quickly translate into physical shortages, not just higher prices, for a continent‑sized country where regional communities depend on trucks, utes and diesel generators.2
This vulnerability is not theoretical. As conflict in Iran escalated, Western Australia began to see steep increases in retail fuel prices, with average unleaded costs in Perth jumping by around 70 cents a litre in less than a month according to state monitoring data.7
Families cut back on discretionary driving, and small businesses in freight and construction reported thinning margins as fuel bills rose faster than they could adjust contracts.7
Transport: shocks at the bowser
Nowhere are the effects more visible than at the bowser. Australia imports around 90 per cent of its refined fuel, so global oil price spikes flow quickly into pump prices, adding roughly 40 cents a litre compared with pre‑crisis levels by some estimates.4
For a typical family car with a 60‑litre tank, that means paying around 24 dollars more at each fill, a significant hit to household budgets during a broader cost‑of‑living squeeze.4
Rising petrol and diesel costs are, in theory, a powerful driver of electric vehicle uptake because they shorten the payback period for higher upfront EV purchase prices.3
Recent disruptions have coincided with spikes in Australian EV sales, helped by state incentives and a growing second‑hand market, as drivers seek protection from volatile fuel bills and look to charge at home from rooftop solar.3
History suggests, however, that surges in EV interest during crises can fade if fuel prices later stabilise and policy support remains patchy.3
Without firm fuel efficiency standards, charging infrastructure investment and clear phase‑out dates for combustion engines, temporary price shocks may not translate into a sustained shift in the national vehicle fleet.3
Australia’s aviation and shipping sectors face similar pressures but have fewer immediate alternatives, given the limited availability of sustainable aviation fuels and green shipping fuels at scale.3
The result is higher costs for regional air travel and freight, feeding through to ticket prices and the cost of goods in remote areas.7
Power bills and the promise of renewables
The gas market links the Iran crisis directly to electricity bills. Disruption in the Strait of Hormuz has pushed up international LNG prices as buyers anticipate tighter supplies, even where physical cargoes have not yet been curtailed.4
In Australia’s interconnected east coast market, gas‑fired generators often set the marginal price of electricity, so higher gas input costs flow into wholesale power prices and, with a lag, household bills.12
At the same time, the economics of new generation are shifting. The IEA and other analysts find that the levelised cost of energy from utility‑scale solar and onshore wind has fallen sharply over the past decade, by up to 80 per cent in some cases when combined with cheaper batteries, making them increasingly competitive against new coal and gas plants even before accounting for fuel price volatility.9
Unlike gas or coal, renewable projects have no exposure to international fuel markets once built, insulating them from geopolitical disruptions in places like the Middle East.9
High fossil fuel prices can therefore accelerate investment in grid‑scale batteries and pumped hydro storage, which help manage the variability of wind and solar and reduce reliance on peaking gas plants during demand spikes.9
In Australia, where households have installed rooftop solar at world‑leading rates, adding batteries and smarter demand response could significantly cut the need for imported fuel‑linked generation over time.9
Industry: exposed yet adaptive
Energy‑intensive industries are feeling the strain. Mining operations across Western Australia rely heavily on diesel for haul trucks and stationary generators, so sudden jumps in fuel costs squeeze margins and threaten the viability of marginal projects.7
Aluminium smelters and fertiliser plants also face rising input costs through higher electricity and gas prices, amplifying competitive pressures in global markets.10
Yet the same crisis may hasten change. Several major miners have already begun electrifying haul fleets and investing in on‑site renewables and battery systems to cut diesel consumption, lower emissions and reduce exposure to volatile fuel markets.7
Interest in green hydrogen for steel, ammonia and heavy transport has grown as policymakers and investors look for alternatives that can be produced domestically from renewable electricity.3
For now, these technologies remain costly and often rely on public support or premium markets, but sustained fossil fuel price volatility could shift that calculus faster than expected.3
If capital flows into electrification, transmission and clean industrial processes rather than new fossil infrastructure, the current crisis could mark a turning point in Australian manufacturing strategy.9
Farming through a fuel and fertiliser crunch
On a grain property in regional New South Wales, a farmer watches the diesel gauge as closely as the weather forecast. Every planting and harvest season depends on affordable fuel for tractors, trucks and pumps, along with fertilisers derived from gas‑intensive processes.10
The Iran conflict has tightened both markets, lifting diesel and fertiliser prices and raising production costs for Australian farmers.10
Higher input prices tend to feed into retail food costs, adding to inflation and hitting low‑income households hardest.10
Some producers pass on the increases, others absorb them and delay equipment upgrades or reduce hired labour, decisions that can ripple through regional economies dependent on agriculture.10
Over the longer term, sustained high diesel prices could make electrified farm machinery, such as battery‑powered tractors paired with on‑farm solar, more attractive where grid connections or microgrids are available.9
Emerging practices, including renewable‑powered irrigation and low‑emissions fertiliser production using green hydrogen, offer potential pathways to reduce the sector’s exposure to both price shocks and emissions constraints, though they are not yet widely commercial.9
Households on the front line
For many Australians, the geopolitics of the Persian Gulf become tangible only when they tap a credit card at the servo or open a power bill. Rising fuel prices since the Iran war have been among the fastest in the developed world, according to some analyses, reflecting Australia’s import dependence and limited buffer of domestic stocks.5
Households in outer suburbs and regional towns, where public transport is sparse, are particularly exposed because driving is often unavoidable.7
Some families respond by consolidating trips, delaying visits to relatives and cutting back on discretionary travel, a pattern already visible in surveys and anecdotal reports.7
Others invest in rooftop solar, home batteries or more efficient vehicles if they have the savings or access to credit, deepening an emerging divide between those able to insulate themselves from energy shocks and those forced to absorb each new spike.9
This divergence highlights a central tension in energy policy: measures that rely on households to invest in technology can reduce system‑wide demand and emissions, yet without targeted support they risk leaving low‑income communities more exposed to price volatility.9
As governments respond to the Iran crisis, decisions about rebates, tariffs and support for social housing retrofits will influence who gains and who loses from the energy transition.3
Exporter and potential clean energy superpower
Australia faces a particular dichotomy. It is one of the world’s largest exporters of coal and LNG, supplying the very fuels whose prices are now spiking, yet it is also positioning itself as a future renewable energy superpower through green hydrogen, critical minerals and high solar and wind potential.3
This dual identity complicates domestic debates about how quickly to shift away from fossil fuel production and how to manage the geopolitical implications of doing so.6
On one hand, high global prices deliver windfall export revenues and royalties, bolstering budgets and funding services, particularly in resource‑rich states.10
On the other, sustained investment in new coal and gas projects risks locking in emissions and infrastructure that will be costly to retire as global climate policies tighten.3
International agencies warn that to meet agreed climate targets, investment in new unabated fossil fuel supply needs to decline sharply while spending on renewables, grids and efficiency continues to rise.3
For Australia, that means deciding whether to treat the current crisis as justification for further fossil expansion or as the last warning before a deliberate pivot to low‑carbon exports such as green metals and clean energy technologies.9
Climate goals under pressure
The emissions impact of the Iran war is likely to be complex. In the short term, higher fossil fuel prices can depress consumption and encourage efficiency, but the crisis has also prompted some countries to extend the life of coal plants and approve new gas infrastructure in the name of security.3
If such investments persist, they risk undermining the emissions reductions required this decade to keep global temperature goals in reach.3
For poorer countries, the calculus is even harder. Higher energy prices and debt burdens can push governments to delay climate investments, prioritising immediate affordability and access over long‑term decarbonisation, especially where international finance is limited.3
That dynamic may widen the gap between advanced economies able to invest in clean technologies at scale and developing nations left reliant on cheap but polluting fuels.3
Australia’s own climate commitments, including emissions reduction targets and net zero pledges, now sit alongside a renewed focus on fuel security and cost‑of‑living relief.5
Balancing these priorities will require more than slogans, it demands credible plans to cut demand for imported fossil fuels through efficiency, electrification and renewables, rather than simply searching for new supply.9
Policy choices at the crossroads
If oil prices remain elevated into 2027, as some experts warn, the choices made today will crystallise into long‑lived infrastructure and market structures.6
To ensure the crisis leads to faster decarbonisation rather than deeper fossil dependence, analysts point to several priorities: accelerating grid upgrades, setting clear EV and appliance standards, strengthening fuel security rules and directing public finance toward clean energy, not new fossil projects.3
For Australia, a credible strategy would likely include higher minimum fuel stockholdings, diversified supply routes and resilience planning for key sectors, alongside a rapid build‑out of renewables, storage and transmission to cut exposure to imported fuels in power generation.2
In transport, binding fuel efficiency standards, expanded charging infrastructure and targeted support for EVs and e‑buses could reduce oil demand while improving air quality and household budgets over time.9
Critically, regional communities that have long depended on fossil fuel industries will need support to diversify their economies through investment in renewable projects, clean manufacturing and services, so the transition is managed rather than imposed.7
Without such planning, resistance to change may grow, especially if people feel they are being asked to shoulder the costs of climate policy while energy companies profit from higher prices.10
A geopolitical transition, not just a technological one
The Iran war has laid bare a simple reality: the energy transition is as much about geopolitics as it is about engineering.6
Fossil fuels flow through chokepoints controlled by states and, at times, by armed groups, making supply vulnerable to conflict and coercion in ways that electrons on a domestic grid are not.1
Yet clean energy supply chains have their own geopolitical risks. Solar panels, batteries and critical minerals are concentrated in a handful of countries, raising concerns about new forms of dependence even as reliance on Middle Eastern oil and gas eventually declines.3
For Australia, rich in lithium, nickel and rare earths and endowed with strong solar and wind resources, this shift offers both opportunity and responsibility.9
Ultimately, the question facing policymakers is not just how to keep the lights on during a distant war, but what kind of energy system they want to inhabit when the next crisis arrives.6
Whether Australia emerges more resilient, more equitable and on track to meet its climate goals will depend on whether it uses this moment to reduce its exposure to fossil fuel geopolitics, or simply to reroute the same vulnerabilities through different ports and pipelines.2
Conclusion: a fragile equilibrium
The shock from the Strait of Hormuz has exposed how quickly events in a distant waterway can seep into Australian lives, from supermarket prices to regional air tickets. It has also forced a reckoning over the country’s layered fuel vulnerabilities, its limited reserves and its dependence on refineries and sea lanes it does not control.2
At the same time, the crisis has sharpened the appeal of an energy system built on abundant sun and wind, local storage and electrified transport, one less beholden to geopolitical chokepoints and sudden price spikes.9
Households, miners and farmers are beginning to experiment with this future, installing solar, testing electric machinery and seeking ways to hedge against the next oil shock.7
Australia’s governments now sit at a junction. They can treat the Iran war as justification to entrench fossil fuel supply networks, investing in new coal, gas and import infrastructure that may linger beyond a safe climate window, or they can treat it as a final warning, a prompt to double down on renewables, storage and efficiency.3
The balance they strike between energy security, economic stability and climate commitments will determine whether today’s queues at the servo become a recurring feature of Australian life or a memory of a system in transition.
References
- Australian fuel prices: what to expect following newest conflict in Iran (NRMA)
- Hormuz closure brings Australia’s layered fuel vulnerability to the fore (ASPI)
- Energy fallout from Iran war signals a global wake-up call for renewable energy (AP / IEA analysis)
- The Iran war has triggered a fuel price rise. What does this mean for Australian consumers? (The Conversation)
- The 90-day question looming over Australia’s fuel price pain (SBS)
- Iran war sparks oil supply crisis lasting until 2027 (news.com.au)
- From petrol prices to mining, how the Iran war is impacting Western Australia (ABC News)
- Ominous oil bargain facing Australia as fuel supplies dry up (Yahoo Finance Australia)
- IEA says faster transition to renewables equals lower household prices (RenewEconomy)
- How disruption in Iran’s Strait of Hormuz is affecting Australia (The Guardian)
- How the Middle East war spiked Australia's fuel prices (ABC News)
- Australian energy bills could surge as Iran conflict drives oil, gas and LNG prices higher (The Guardian)
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