Not sure if it was released? But most estimates have it at around $88/mwh under the ppa.
Prior to Aug this was a 'ramp up' period where the revenue is based on spot prices plus LGC sales.
https://www.genexpower.com.au/uploads/6/6/1/2/6612684/genex_asx_announcement_-_ks1_revenue_-_revenue_2018.pdf