Yass to Wagga control scheme update removes some constraints
The notice informs us that an update to the Yass overload trip scheme means it is now managing flows on lines 990, 991 and 970 132kV in both directions.
Wagga
Disallowed flow north on VIC1-NSW1 another significant factor in tight supply-demand in NSW + QLD
A quick look at how restrictions in southern NSW meant that Victoria could not export to NSW through the afternoon ... hence contributing to the tight supply-demand situation.