Well done COALition losers .2.0 pumped hydro project has ballooned to a massive $12 billion – double previous estimates.
Bowen is yet to publicly release the full report detailing the cost blowout, including the $4.3 billion already spent, but said last week that “design immaturity” at the time of final investment decision and site conditions and geology that “should have been known” were key contributing factors.
Some detail can be found in the application documents, however, including statements that contradict previous advice on the project’s progress from Snowy Hydro, and frank admissions that more sinkholes and stranded boring machines could lie ahead.
“The original geological predictions anticipated in the geotechnical baseline report for the Tantangara Headrace Adit Tunnel, indicated a different geological condition than those encountered by the TBM where the sinkhole was formed,” the voluminous geotechnical report says.
“Additional faults and poor ground conditions cannot be ruled out in future TBM excavation activities along the tunnel alignments.
https://reneweconomy.com.au/snowy-2-0-documents-suggest-the-12-billion-projects-troubles-are-far-from-over/
