> Given that renewables are the cheapest energy source in human history

Not according to the energy contracts in Ontario as shown in the OEB report linked above.

Yes, the OEB report is for a paid off fleet. Sure, some investment in recent years but not even close to a new build.

The cost for the Darlington SMR is somewhere in the 25-35 cents/kWh range with the calculation assuming large learning effects to subsequent reactors and that the entire project goes on time and on budget.

Does that sound cheap to you?