← Energy Realism
Reliability2026-11-10· RenewEconomy

Plan to build big battery in ex-premier’s home town will have to dodge abandoned gold mine shafts

Image: reneweconomy.com.au

A Chinese-owned developer, Pacific Blue, is seeking federal approval for a 201 MW battery project in Bendigo, Victoria. The site sits near abandoned gold mines, and planning documents reveal the installation will need to navigate dozens of old mineshafts to proceed safely. The project adds another layer of construction and operational complexity to battery deployment in regional Australia.

Where this fits

This story illustrates a hidden cost of the renewables-heavy grid: battery projects are being compressed into available land, often industrial or degraded sites, which carry their own infrastructure and geological hazards. Each complication, mineshaft remediation, site survey, engineering workarounds, adds cost and delays to the firming backbone the grid is supposed to depend on. The project also highlights a sovereignty issue: a Chinese state-owned corporation is building Australia's critical energy storage, embedding supply-chain and geopolitical dependence into the nation's transition.

What it means

Australia is outsourcing not only the manufacture of panels, inverters and batteries, all China-dominated supply chains, but now also the build and operation of storage that the grid needs to function when renewables don't. Each battery project, each transmission line, each processing facility raises the same question: how much of the energy transition can Australia afford to hand to a strategic rival? The Bendigo project will work around old shafts and proceed. But it underscores the real cost of a renewables-only path: weather-dependent generation needs firming, firming needs batteries, batteries need overseas capital and expertise, and that dependence is a security risk no megawatt-hour price can redeem.

By the numbers

Taking the article's figure of 855 megawatt-hour (MWh), at indicative Australian build costs:
What it costs to buildA$513m–A$855m

at ~A$600–1000/kWh installed. Source: BNEF, CSIRO GenCost 2024-25. Indicative.

What it actually stores~0 hrs

of average national (NEM) demand if fully dischargeable, then it needs recharging. Storage shifts power, it does not generate it.

Critical minerals it consumes~1,693 t

lithium, graphite, nickel, copper and cobalt (~86 t lithium content). Replaced roughly every 12 years. Source: IEA, Argonne GREET. Indicative.

Money into China's economyA$385m–A$641m

~75% of cells are China-made. Source: IEA cell-manufacturing share.

The same money in nuclear0–0.1 GW

enough for 0–1 TWh a year of firm, always-on power, generating for ~60 years. Source: CSIRO GenCost 2024-25 (A$8.5–13.2bn/GW), IAEA capacity factor.

Figures are indicative conversions from the article's stated quantity using published cost, material and capacity factors (CSIRO GenCost, BNEF, IEA, IAEA). Ranges, not precise forecasts.

Go deeper on the numbers

The bigger picture

Energy security is national security. This connects to the wider case at Unprepared: Australia's dependence on a strategic rival, and how ready it is for the world that is coming.

The Unprepared series · Part IV

Xi Jinping and the Purge That Built an Army

The PLA that Xi Jinping inherited in 2012 was modernising, and the one he commands in 2026 is transformed. Part IV of the Unprepared series.

Reported by RenewEconomy. Read the original report ↗

Related coverage

The numbers, as they move

A short, sourced brief when the figures shift: a transmission blow-out, a supply-chain move, a milestone.

Free every week on Substack. Unsubscribe anytime.