This seminar will investigate the relationship between increasing shares of renewable generation and the wholesale market revenues of coal-fired generating units in Australia’s National Electricity Market. Renewable generation may influence coal generator revenues via both decreased spot market prices and reduced dispatch allocation. We use autoregressive distributed lag (ARDL) models on a high-frequency (30-minute) panel dataset between July 2017 and June 2021. We find that a one MWh increase in wind and solar generation is associated with decreases in coal generator revenues of A$0.0072–0.0083 and A$0.0040–0.0054 per megawatt of installed coal-fired generating capacity, respectively. This is using 2011-2012 dollars. These results are of potential use in informing managerial and policy decisions regarding coal plant exits in the coming decades.