The cost of the troubled Snowy 2.0 hydroelectricity scheme is set to balloon to as much as $25 billion and its completion delayed by almost a year, after construction problems and overruns forced the federal government to drastically revise its forecasts.
A detailed cost review by head contractor Webuild to be published on Friday reveals that the giant energy storage project’s overall price is now more than 10 times the $2 billion figure proposed when the former Turnbull government unveiled it in early 2017.
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