John Spears' article in the Toronto Star today throws around some figures on the 2100MW Lennox Generating Station.
Lennox power plant gets $7 million a month for operating at 1.5 per cent capacity | The Toronto Star
While the cancellation of gas-fired power plants in Oakville and Mississauga grab headlines, a much older gas plant labours in obscurity in eastern Ontario.
At least, it labours from time to time.
The Lennox Generating Station near Napanee, Ont., has operated at about 1.5 per cent of its capacity over the past five years, according to records from the Independent Electricity System Operator...
Factoring in the regular payments based on its capacity, it has received about 26.5 cents a kilowatt hour for its electricity over the past five years. That’s close to triple what most gas-fired plants get for their output, and more than double the price paid for power from wind turbines.Spears article contains a lot of information, but I think misses the fairest comparisons and the bigger issue. Reserve margins are required by the North American Electric Reliability Corporation (NERC) - Ontario's system operates within NERC's standards. Spears compares the cost of the firm capacity, or capability, from Lennox to wind output - which lacks any capability to meet demand as required (see Table 4.1 here). If the market was required to take all the output Lennox could produce, the cost would be much lower (and fuel use, and emissions, much higher).
The comparison would be to alternative options for capacity. The most likely comparison for that what be the less efficient York Energy Centre, which I would guess has a Net Revenue Requirement of 12,900 (based on the revealed originally contracted NRR of the Greenfield south OCGT plant). The 393 MW capacity York has produced about 106GWh over the past year; putting it at ~3% of capacity at a average cost of 62.4 cents a kilowatt hour (assuming the cost recovered in the market just paid for the fuel).
That makes Lennox a pretty good deal for firm capability.
The bigger question is what necessitates procuring capacity outside of the market pricing for electricity.