I think the costs are worth eating for this long duration storage versus cancelling the project, but batteries are so cheap now another hydro storage facility will never be built again.
> Thread: Each week I run a simulation of Australia’s main electricity grid using rescaled generation data to show that it can get very close to 100% renewable electricity with 24GW/120GWh of storage (5 hrs at av demand)
> Results:
Last week: 100% RE
Last 269 weeks: 98.5% RE (1/5)
https://bsky.app/profile/davidosmond.bsky.social/post/3myehs...
> Thread: Each week I run a simulation of Australia’s main electricity grid using rescaled generation data to show that it can get very close to 100% renewable electricity with 24GW/120GWh of storage (5 hrs at av demand)
> Results: Last week: 100% RE Last 269 weeks: 98.5% RE (1/5)
https://reneweconomy.com.au/near-100-pct-renewable-electrici...
https://www.pv-tech.org/solar-and-battery-storage-push-austr...
https://www.theguardian.com/environment/2026/sep/22/solar-an...