Time to walk away? Australia's boldest energy project in trouble again | 7NEWS

Professor Bruce Mountain has criticised Snowy Two’s $25 billion cost, arguing that batteries could offer a more flexible and cost-effective alternative for balancing Australia’s renewable-energy grid. He calls for the project to be paused and reassessed despite $12 billion already spent on tunnels and underground infrastructure, questioning its economic value and environmental impact. However, supporters argue that pumped hydro can provide long-term energy storage and improve grid reliability for decades.

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