Revenue is logged here but is monthly and delayed by about 15 days http://www.nemweb.com.au/Data_Archive/Wholesale_Electricity/MMSDM/2021/
I have not found where the data is logged daily on that site but you can download it daily here http://nemlog.com.au/nem/stn/JEMALNG/ which I have done for most days of the quarter and have revenue for Jemalong at about 1m even.