Government $2.5b power bill

Australia's biggest aluminium smelter will stay open. The price is $2.5 billion in public money, split between the federal and NSW governments, paid over a decade to convince Rio Tinto not to walk away from Tomago Aluminium when its energy contract expires in 2028. That is the deal announced this week. The question worth sitting with is not whether 1,000 jobs in the Hunter region matter, they obviously do, but what it tells us that a single company's power bill has become a federal budget problem.

Tomago's problem is a grid problem, not a company problem

Tomago consumes roughly ten per cent of NSW's entire electricity supply each year. Aluminium smelting is, by nature, an energy-intensive process — the metal is sometimes described as "solid electricity" because converting bauxite to aluminium requires enormous and continuous power. When the energy contract rolls over in 2028 at current market rates, the numbers do not work. That is not a Tomago-specific problem. It is a structural feature of what the energy transition is costing industrial users right now.

Rio Tinto recorded a $10 billion after-tax profit in 2025. The argument for a bailout is not that Rio Tinto cannot afford to keep the lights on at Tomago. It is that the smelter cannot survive as a commercial operation at the prices the Australian grid is now charging for large-scale, reliable baseload power. Those are different claims, and conflating them obscures the real issue.

The volatility itself is a cost, because industrial investment requires predictable pricing, and the Australian grid is not delivering that yet.

The transition from coal to renewables is genuinely bringing down wholesale prices during periods of high wind and solar generation. But as we have written before on The Bearing, wholesale prices are only one component of what large users actually pay. The firming costs, the transmission investment, the grid services that keep supply reliable when the sun is not shining and the wind is not blowing, those costs are real, substantial, and climbing. Heavy industry, which cannot simply shift its load to Tuesday afternoon when the grid is cheap, bears these costs acutely. The volatility itself is a cost, because industrial investment requires predictable pricing, and the Australian grid is not delivering that yet.

This is a pattern, not a one-off decision

This is the second major aluminium smelter bailout in recent months. Boyne Smelters in Queensland received similar treatment. The government has also stepped in at Glencore's Mount Isa Copper smelter and at the Nyrstar operations in Tasmania and South Australia. These are not isolated decisions. They are a pattern, and patterns have a logic. The logic here is that the energy transition has created a window of elevated costs that some industries cannot bridge on their own, and the government has decided to bridge it for them rather than let the operations close.

There is a defensible version of that argument. If Australia genuinely needs domestic aluminium smelting capacity for strategic or industrial reasons, and if the cost spike is temporary, then a time-limited subsidy to hold the industry through the transition could be rational policy. The question is whether this deal is designed that way. Rio Tinto will invest $1.1 billion of its own money alongside the public funding, and the package includes a demand-response program intended to position Tomago as a flexible grid asset rather than simply a passive consumer. That is worth something. A smelter that can modulate its load in response to grid conditions is genuinely useful to a renewables-heavy electricity system.

Each bailout makes the next one more likely

But the underlying problem does not go away when the ribbon is cut. The pattern of government smelter interventions suggests that once a rescue is in place, the political cost of walking away compounds over time. Each bailout makes the next one more likely, because the workers, the region, and the supply chains that depend on the facility all become stakeholders in continued government support. The distortion deepens.

The honest read on this week's announcement is that $2.5 billion is the visible price of an electricity system that is, right now, too expensive for the industries that need it most. The government can pay that price directly, as it has done here. Or it can work harder and faster on the underlying problem: getting the cost of reliable, dispatchable electricity down to a level where businesses do not need to come to Canberra with a hat in their hand every time a contract expires.

Tomago gets to stay open. Good. But the next smelter's energy contract will expire eventually, and the one after that. If the answer each time is another multi-billion dollar rescue package, the government is not solving the problem. It is just paying for it on instalments.

Sources

ABC News — Federal and NSW governments to split $2.5 billion Tomago Aluminium bailout

The Bearing — Do renewables actually lower power prices? The evidence is more complicated

The Bearing — Government's dodgy loan to a dodgy manganese smelter

Frequently Asked Questions

Why is the Australian government paying $2.5 billion to keep an aluminium smelter open?
The Tomago Aluminium smelter in NSW cannot survive commercially at the electricity prices it will face when its current energy contract expires in 2028. The federal and NSW governments are splitting $2.5 billion over a decade to cover the gap rather than let the smelter close and lose around 1,000 jobs in the Hunter region.

If Rio Tinto made $10 billion in profit, why does it need a government bailout?
The bailout is not about Rio Tinto's financial health — it recorded a $10 billion after-tax profit in 2025. The argument is that the Tomago smelter specifically cannot operate profitably at current Australian grid prices, making it a question about electricity system costs rather than corporate distress.

Why are electricity prices so high for industrial users in Australia if renewables are getting cheaper?
Wholesale electricity prices fall during periods of high wind and solar output, but large industrial users also pay for firming, transmission investment, and the grid services needed to keep supply reliable around the clock. Those system costs are substantial and rising, and energy-intensive industries that cannot shift their load to cheaper periods bear them acutely.

Is the Tomago bailout a one-off or part of a broader pattern?
It is part of a pattern. Boyne Smelters in Queensland received similar treatment recently, and the government has also intervened at Glencore's Mount Isa Copper smelter and Nyrstar operations in Tasmania and South Australia. Each intervention increases the political difficulty of refusing the next one.

What is a demand-response program and why does it matter for this deal?
A demand-response program allows an industrial user to reduce its electricity consumption on request when the grid is under stress, acting as a flexible asset rather than a fixed load. The Tomago package includes such a program, which in principle makes the smelter useful to a renewables-heavy grid — though the article notes the announcement contains no detail on how the mechanism will actually work.