Ann: Horizon Power Purchases VFB for Long Duration Storage Pilot, page-23

The secret-electrolyte Allegro battery for Origin is initially only going to be 100kkWh according to Giles Parkinson at the Renew Economy link I posted before;
“The redox flow battery can offer 12 hours of storage, and Origin intends to trial a small eight hour version sized as a 100kW (800kWh) module at the Eraring site. It will be the first commercial test of the technology.
If that is successful, Origin says it plans to build a 5MW, 60MWh redox flow battery, although the location of that bigger facility is not confirmed, and may not be at Eraring…”
.. And I can’t find any time line on that project.

Hopefully Horizon, AVL and Invinity will be not be delayed and ‘early next year’’ and the results will speak for themselves.

….Especially if positive feedback starts coming in (even sooner!) on the new vanadium redox flow Simpson Energy Project in South Australia;
https://www.abc.net.au/news/2023-06-23/vanadium-flow-battery-south-australia/102515616
“Australia's first commercial vanadium-flow battery has been completed in South Australia's mid north and is expected to be running and exporting power by August...”
… “Yadlamalka Energy has been undertaking the Spencer Energy Project at Bungama, outside of Port Pirie, where the 2-megawatt/8MW-hour battery is connected to a grid of solar panels.
The battery will store around 10 gigawatts of dispatchable solar power each year and charge from excess electricity produced by the solar panels when the sun is at its peak…”

cheers