On October 12 the Ontario Power Authority (OPA) released 20000 pages of documents related to the 'relocation' of a gas plant to service the southwestern GTA; from the southwestern GTA to hundreds of kilometres from the southwestern GTA (
story here). The 20000 pages are now added to the release of a number of heavily redacted documents weeks ago in what was, up until 20000 more pages, a comprehensive sharing of documentation. The interesting question, from my perspective, is not how 20000 pages were missed, it is how a culture came to exist where 20000 pages can be missed.
I'll start exploring that culture with some timely data following the latest meddling in Ontario's electricity market design.
Ontario's Independent Electricity System Operator (IESO) passed a
rule change, effective October 1st, 2012, to prevent exporting electricity at negative prices. Operators at the IESO had already been having some success at curtailing generation to control the occurance of negative pricing. The most recent 12 month period (Oct. 1, 2011 to Sept. 30, 2012) had about half the number of hours with negative pricing as the same dates 3 years earlier. The average negative price was 5 times greater
[1] than 3 years earlier, but still, in a market valued at roughly $10 billion per year, negative exports likely cost about $12 million. There is no new market impetus for a new policy, and the stakeholder group exploring the issue did not suggest this policy.
It is another policy made for political reasons - in this case to avoid to optics of paying neighbours to take excess generation.
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We've had 3 instances of negative Hourly Ontario Energy Price (HOEP) since the rule was to be effective - in each instance supply was curtailed by dispatching down nuclear units:
- Oct. 1, hour 4, the price dropped to -$29.17/MWh. Bruce B Unit 8 was dispatched down until hour 7
- Oct. 4, hour 24, the price dropped to -$51.91/MWh, Bruce B Unit 7 was dispatched down until hour 6 of the 5th.
- Oct. 9 hour 23, the price dropped to %-10.24/MWh, Bruce B Unit 7 was dispatched down until hour 4 of the 10th, and Pickering unit 4 suddenly dropped offline during that time.