Bruce Power took their Four “A” Units offline and no one Noticed

The OCAA (Ontario Clear Air Alliance) has been pushing the closure of Ontario’s nuclear plants for years in addition to their more recent effort to gain municipal support for the closure of our gas plants.  They continually suggest the closure of both will not cause problems as we will get all the power those units now produce from Quebec’s excess hydro which is an outright lie. Quebec is a winter peaking province and pushes their residential and businesses to conserve power during that season.  No doubt the OCAA will renew the claim with Bruce taking all four of their “A Units (3,144 MW capacity) offline as part of the requirement to do its Vacuum Building Outage. That will allow OCAA to suggest they weren’t missed! 

The VBO is a regulation as noted in the Bruce press release: “All four operating units must be shut down once every 12 years to allow for inspections and maintenance to the vacuum building.”  The units will come back on line before “summer peaking season” to ensure Ontario has the electricity supply needed.

What is interesting about the units being taken offline is to look at Hour 18 (hour ending at 6 PM) on May 12th!  That time reflects the “peak demand” hour for the day with it reaching 17,179 MW for a five-minute segment.  At that hour nuclear generated 6,758 MW, hydro 6,176 MW and natural gas plants 3,666 MW.  From the three renewables IESO report; solar contributed 97 MW, biomass 50 MW and those IWT (industrial wind turbines) 866 MW so collectively they provided 5.9% of peak hour needs.

Now try to imagine the blackouts we would experience without nuclear and gas or what Quebec might have provided to replace the 57% of generation those two sources did!

As a matter of interest, the IESO “Intertie report” disclosed Ontario even exported 1,408 MW to Michigan and imported 500 MW from New York.  Quebec supplied 115 MW (less than solar and biomass combined at that hour)!  Those imports and exports traded at an average rate of $81.06/MWh which is much closer to their actual cost than when the wind is blowing hard during low demand hours and days driving down the HOEP (hourly Ontario energy price)!

So, Mr. Gibbons, Chair of the OCAA, the “cheap and abundant” hydro you told us Quebec would supply if we shut down our nuclear and gas generation never appeared at Hour 18 so what makes you believe we would be able to do without Ontario’s nuclear and gas generation?  You seem intent at wanting to cause widespread blackouts throughout Ontario!

The time has arrived for the OCAA and its supporters to back off from their spurious claims!

Author: parkergallantenergyperspectivesblog

Retired international banker.

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