November 28th, 2022, saw Ontario’s peak demand for electricity reach a fairly high level of 19,360 MW at Hour 18 (hour ending at 6 PM) and those IWT with their “first-to-the-grid” rights were almost absent at that hour. As we approach the winter season peak demand will reach those levels frequently and will often be over 20,000 MW and occasionally close to summer peak demand hours.
At the present time with a few nuclear plants undergoing refurbishment IWT represent over 16% of current Ontario grid connected capacity but at Hour 18 they were only able to deliver 1% (200 MW) of peak demand ie; 4% of their capacity! During the early morning hours from 1 AM to 7 AM when demand was as low as 12,990 MW, IWT managed to generate 13,524 MW (39.4% of their capacity) over those seven hours. For the balance of the day (17 hours) they generated a total of 6,862 MW, an average of only 8.2% of their rated capacity with Hour 19 the low point, at 194 MW or 4% of capacity.
For those first seven hours of the day when the IWT were running at 39.4% of their capacity, IESO were selling their surplus power off to our neighbours in Michigan, New York, and Quebec for as low a price as $5.84/MWh. For the 17 hours following however, IESO were buying power from New York and Quebec for prices that reached $86.31/MWh at Hour 18, once again demonstrating the intermittent and unreliable nature of IWT and their cost to us ratepayers.
If the owners of those IWT also had a BESS (battery energy storage system), which several are currently seeking; at Hour 2 they would have been paid $135/MWh for the 2,636 MW of wind generation delivered to the grid. If they then purchased those 2,638 MW at the princely sum of $5.84/MWh, used their BESS to store them, and then resold the stored power (less the 20% loss of battery storage) at the peak hour for $86.31/MWh they would wind up getting about $200/MWh or over twice the cost of clean nuclear and more than three times the price of clean hydro.
We should all be at a loss at trying to discern, exactly how the above would reduce emissions on the dubious path chosen to achieve that net-zero target? Ontario’s electricity sector is already over 92% emissions free!
We should all worry; the foregoing will be allowed here in Ontario based on the Ministry of Energy’s plan to add 1,500 MW of energy storage. As it implies; the 1,500 MW of storage will do nothing more than increase electricity prices in Ontario as they have done in other locales including California, Southern Australia, the UK and many European countries.
More “energy poverty” appears to be what our politicians are seeking!