This post has been updated following posting of IESO Daily Market Summary
|Based on available hourly data - all are estimates|
The previous record, $-17.54, was Sunday, August, 28, 2011, and many of the characteristics of that debacle existed on the latest Sunday too - the main one seeming to be the disinterest in external markets in allowing Ontario to dump excess production - at any price.
At 3 pm the inability to dump power at any price became clear, and the Bruce 8 reactor was again idled (as written about in my previous post). Prior to the shutdown of Bruce 8; the first drop in price saw a steam bypass procedure at Bruce 7, and second drop saw Bruce 5 join in the on the steam bypass.