MISO region fuel mix has never seen a day with gas fired generation exceeding coal until this month. Over the last three years, coal output has exceeded gas by more than 5 BCFED at times. Here is the daily amount by which coal generation exceeded gas since 2016:
The 7 day average GW output from coal and gas this year:
And the gas/coal relationship from a market share perspective, over the past 4 Aprils, shows a substantial increase for gas over prior years: