they have a bigger battery at St Lucia (1.1/2.15 vs 0.6/0.76)... very interesting paper they (UQ) produced on the operation and profitability of that setup if you care to find it and have a read.
That site used FCAS to generate revenue with very little "generation" into grid... TBH - 0.76Mwh isn't much storage to offer on a grid scale level of operation.