Maxim printing money this hour: $200k/hr
At 10:18 AM Alberta time, Milner currently producing at 285 MW, with pool price at $766/MWhr.
Current natural gas price in Alberta about C$2.5 /GJ.
If assume a heat rate of 8.1 GJ / MWhr, get about $20/MWhr fuel cost. Add another $14/MWhr for op and maintenance gives $34/MWhr operating costs.
Estimate Maxim operating earnings at $208,000 per hour. Of course pool prices will not remain so elevated forever, and who knows if MXG is actually getting that price.