Expensive, damaging and unnecessary

Snowy 2.0 must be publicly reviewed before proceeding

30 eminent Australian energy, engineering, economic and environmental experts have called on the Prime Minister and NSW Premier to delay final approval of the Snowy 2.0 pumped storage project until there has been a comprehensive independent review. 

Snowy 2.0 to spread noxious fish and disease throughout Kosciuszko National Park and downstream rivers

Scientific experts have warned that if the massive Snowy 2.0 pumped hydro
development goes ahead it will spread noxious pests, weeds and diseases
throughout the alpine river system and downstream, causing catastrophic damage to aquatic environments, commercial fish farms and recreational fishing.