Moving Forward Overview of the 2003 Blackout. Overview Power system restored within 30 hours...

transcript

Moving Forward

Overview of the 2003 Blackout

Overview

• Power system restored within 30 hours

• Conservation efforts avoided rolling blackouts once power system restored

• Focus now on cause and how to prevent a recurrence

• Electricity is back on the public agenda -- with a serious debate about future management of the system

Business As Usual Before Power Outage

584 MW584 MW

1,090 MW1,090 MW490 MW490 MW

140 MW140 MWConditions at 4:06 EDT:

Demand: 24,050 MWImports: 2,300 MW

•Reserve requirements met •Operating within system limits•Voltages within required ranges

First Power Swing• The flow from Michigan reverses, changing magnitude by

about 700 MW

• Voltages across South-Western Ontario are in a declining trend

700 MW Surge700 MW Surge

270 MW270 MW 1,790 MW1,790 MW

First Power Swing

• Flow conditions after first power swing • System remains in a stable condition

• Power swings of 2,000-4,000 MW continue for 12 seconds

Second Power Swing

300 MW Load

1200 MW Generation

Smoky30 MW

40 MW Load720 Generation

Des Joachims20 MW

800 MW Load480 MW Generation

320 MW

680 MW

To New York

900 MW

Restoration Plan Priorities

• Restore power to all nuclear sites• Restore power to critical transmission and generating

station, station service loads• Restore critical utility owned telecom facilities• Restore customer loads only to the extent necessary to

control voltages and secure generating units• Synchronize islands together and/or to adjacent power

systems

Restoration PathsRestoration Paths

Decision Support• System status briefings (two cycles daily)• Briefings and advice provided to key decision

makers and Premier• Twice daily news conferences• Industry load reduction support • Government delegated ‘Electricity’ communications

responsibilities to the IMO - co-ordinated IMO/OPG/H1 info

Communications Activity• Twice-daily media briefings

• IMO principal voice between briefings

• Average of 25 ‘live’ radio interviews and 5-10 television interviews daily

• 200+ media calls per day

• Twice daily news releases

• Numerous communications to market participants

• Communications provided 24 hr coverage

• 200,000 daily hits on the web site

• Help Centre staffed 24 hours a day

Normal Forecast Actual Estimated Demand Response

Conservation Efforts

Moving Forward• Blackout not caused in Ontario• Investigations underway

• Mandatory enforceable reliability standards should be put in place where they do not exist

• Maintain and enhance the integration of systems and markets

• The industry should continue to pursue the three part strategy of prevention, containment and minimization of the effects of system disturbances

Moving Forward

Overview of the 2003 Blackout

Moving Forward Overview of the 2003 Blackout. Overview Power system restored within 30 hours...

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