https://www.proactiveinvestors.com.au/a/defdacc4/snowy-2-0-cost-blows-out-to-as-much-as-a-25-billion-as-completion-slips- The Markets en 2026-10-23T04:00:46.797Z Snowy 2.0 cost blows out to as much as A$25 billion as completion slips to 2029