Queensland’s $18.4bn Borumba hydro electricity costs more than Snowy 2.0 - The Australian

Queensland has approved an $18.4 billion budget for the Borumba pumped-hydro scheme in the Wide Bay region. The project is being positioned as a storage solution to support grid reliability as coal retires and renewable capacity expands. The cost now exceeds the Commonwealth's flagship Snowy 2.0 project, despite Snowy 2.0 being significantly larger in capacity and serving multiple jurisdictions.

Where this fits

This is a cost signal that Australia's renewables-plus-storage model is moving into territory where the whole-system price per megawatt-hour of delivered, firm power becomes visible and difficult to justify. Borumba is essential infrastructure because the grid will run on weather-dependent generation; it is a symptom of, not a solution to, the firming problem. The project absorbs state capital and capacity that could have been directed to firm, low-material, dispatchable power. Australia remains banned by law from the only proven low-emission alternative that does not require massive storage overbuild: nuclear.

What it means

An $18.4 billion single storage asset in one state, needed to firm renewables in that state alone, illustrates the scale of implicit costs in a renewables-first electricity system. Those costs do not appear in the headline megawatt-hour price of solar panels or wind turbines. They appear here: in land use, in concrete and steel, in state budgets, and in project risk. Australia is choosing to pay this way, with certainty, rather than evaluate firm dispatchable alternatives. That is a choice made under political constraint, not economic logic.