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Previous Reports
An assessment of the adequacy and capability of the Ontario electricity system:
- 18-Month Outlook Update: An Assessment of the Reliability and Operability of the Ontario Electricity System from December 2011 to May 2013 (Released November 24, 2011. PDF: 762KB)
- 18-Month Outlook Update - Tables (Released November 24, 2011. XLS: 549KB) tables in spreadsheet format.
- Ontario Demand Forecast (Released November 24, 2011. PDF: 650KB) describes in detail the 18-month forecast of electricity demand for Ontario used in this Outlook.
- Ontario Transmission System (Released November 24, 2011. PDF: 1.58MB) provides specific details on the transmission system, including the major internal transmission interfaces and
interconnections with neighbouring jurisdictions
- Methodology to Perform Long Term Assessments (Released November 24, 2011. PDF: 432KB) contains information regarding the methodology used to perform the demand forecast, resource adequacy assessments, and
transmission adequacy assessments in this Outlook.
- 18-Month Outlook Update: An Assessment of the Reliability and Operability of the Ontario Electricity System from September 2011 to February 2013 (Released August 24, 2011. PDF: 474KB)
- 18-Month Outlook Update - Tables (Released August 24, 2011. XLS: 543KB) tables in spreadsheet format.
- Ontario Demand Forecast (Released May 24, 2011. PDF: 628KB) describes in detail the 18-month forecast of electricity demand for Ontario used in this Outlook.
- Ontario Transmission System (Released May 24, 2011. PDF: 1.54MB) provides specific details on the transmission system, including the major internal transmission interfaces and
interconnections with neighbouring jurisdictions
- Methodology to Perform Long Term Assessments (Released May 24, 2011. PDF: 420KB) contains information regarding the methodology used to perform the demand forecast, resource adequacy assessments, and
transmission adequacy assessments in this Outlook
- 18-Month Outlook Update: An Assessment of the Reliability and Operability of the Ontario Electricity System from June 2011 to November 2012 (Released May 24, 2011. PDF: 555KB)
- 18-Month Outlook Update - Tables (Released May 24, 2011. XLS: 542KB) tables in spreadsheet format.
- Ontario Demand Forecast (Released May 24, 2011. PDF: 628KB) describes in detail the 18-month forecast of electricity demand for Ontario used in this Outlook.
- Ontario Transmission System (Released May 24, 2011. PDF: 1.54MB) provides specific details on the transmission system, including the major internal transmission interfaces and
interconnections with neighbouring jurisdictions
- Methodology to Perform Long Term Assessments (Released May 24, 2011. PDF: 420KB) contains information regarding the methodology used to perform the demand forecast, resource adequacy assessments, and
transmission adequacy assessments in this Outlook
- 18-Month Outlook Update: An Assessment of the Reliability and Operability of the Ontario Electricity System from March 2011 to August 2012 (Released February 25, 2011. PDF: 478KB)
- 18-Month Outlook Update - Tables (Released February 25, 2011. XLS: 532KB) tables in spreadsheet format.
- Ontario Demand Forecast (Released December 3, 2010. PDF: 579KB) describes in detail the 18-month forecast of electricity demand for Ontario used in this Outlook.
- Ontario Transmission System (Released December 3, 2010. PDF: 1.65MB) provides specific details on the transmission system, including the major internal transmission interfaces and
interconnections with neighbouring jurisdictions
- Methodology to Perform Long Term Assessments (Released August 23, 2010. PDF: 425KB) contains information regarding the methodology used to perform the demand forecast, resource adequacy assessments, and
transmission adequacy assessments in this Outlook.
- 18-Month Outlook Update: An Assessment of the Reliability and Operability of the Ontario Electricity System from December 2010 to May 2012 (Released December 3, 2010. PDF: 561KB)
- 18-Month Outlook Update - Tables (Released December 3, 2010. XLS: 524KB) tables in spreadsheet format.
- Ontario Demand Forecast (Released December 3, 2010. PDF: 579KB) describes in detail the 18-month forecast of electricity demand for Ontario used in this Outlook.
- Ontario Transmission System (Released December 3, 2010. PDF: 1.65MB) provides specific details on the transmission system, including the major internal transmission interfaces and
interconnections with neighbouring jurisdictions
- Methodology to Perform Long Term Assessments (Released August 23, 2010. PDF: 425KB) contains information regarding the methodology used to perform the demand forecast, resource adequacy assessments, and
transmission adequacy assessments in this Outlook.
- 18-Month Outlook Update: An Assessment of the Reliability and Operability of the Ontario Electricity System from September 2010 to February 2012 (Released August 23, 2010. PDF: 671KB)
- 18-Month Outlook Update: An Assessment of the Reliability and Operability of the Ontario Electricity System from June 2010 to November 2011 (Released May 20, 2010. PDF: 745KB)
- Ontario Demand Forecast (Released May 20, 2010. PDF: 579KB) describes in detail the 18-month forecast of electricity demand for Ontario used in this Outlook.
- 18-Month Outlook Update - Tables (Released May 20, 2010. XLS: 527KB) tables in spreadsheet format.
- Methodology to Perform Long Term Assessments (Released May 20, 2010. PDF: 429KB) contains information regarding the methodology used to perform the demand forecast, resource adequacy assessments, and
transmission adequacy assessments in this Outlook.
- Ontario Transmission System (Released May 20, 2010. PDF: 1.61MB) provides specific details on the transmission system, including the major internal transmission interfaces and
interconnections with neighbouring jurisdictions
- 18-Month Outlook Update: An Assessment of the Reliability and Operability of the Ontario Electricity System from March 2010 to August 2011 (Released Feb 23, 2010. PDF: 344KB)
- 18-Month Outlook Update - Tables (XLS: 535KB) tables in spreadsheet format.
- Methodology to Perform Long Term Assessments (Released Nov 17, 2009. PDF: 297KB) contains information regarding the methodology used to perform the demand forecast, resource adequacy assessments, and
transmission adequacy assessments in this Outlook.
- Ontario Transmission System (Released Nov 17, 2009. PDF: 897KB) provides specific details on the transmission system, including the major internal transmission interfaces and
interconnections with neighbouring jurisdictions
- From December 2009 to May 2011 (Released Nov 17, 2009. PDF: 816KB)
- 18-Month Outlook Update - Tables (XLS: 459KB) tables in spreadsheet format.
- Methodology to Perform Long Term Assessments (Released Nov 17, 2009. PDF: 297KB) contains information regarding the methodology used to perform the demand forecast, resource adequacy assessments, and
transmission adequacy assessments in this Outlook.
- Ontario Transmission System (Released Nov 17, 2009. PDF: 897KB) provides specific details on the transmission system, including the major internal transmission interfaces and
interconnections with neighbouring jurisdictions.
- Ontario Demand Forecast (Released Nov 17, 2009. PDF: 459KB) describes in detail the 18-month forecast of electricity demand for Ontario used in this Outlook.
- From September 2009 to February 2011 (Released Aug 25, 2009. PDF: 205KB)
- From June 2009 to November 2010 (Released May 25, 2009. PDF: 704KB)
- From April 2009 to September 2010 (Released March 16, 2009. PDF: 337KB)
- From January 2009 to June 2010 (Released December 22, 2008. PDF: 895KB)
- From October 2008 to March 2010 (Released September 23, 2008. PDF: 945KB)
- From July 2008 to December 2009 (Originally posted on June 23, 2008. Revised Version 2.0 reposted on June 27, 2008. An error in the calculations of the bottled generation in the Bruce & West zones for the Planned Resource Scenario, Extreme Weather was corrected. This resulted in the revision of Figure 5.1, Tables A7 and A8, and Sections 6.4.5 and Conclusions: Transmission Adequacy. PDF: 602KB)
- From April 2008 to September 2009 (Originally posted on March 12, 2008. Revised Version 2.0 reposted on April 1, 2008. The Seasonal Normal Weather peak demands in the table in the Executive Summary have been revised. First paragraph in the Executive Summary is corrected to read "....about 600 MW of wind capacity" from 700 MW. PDF: 546KB)
- From January 2008 to June 2009 (Released: December 17, 2007. PDF: 618KB)
- From October 2007 to March 2009 (Released: September 10, 2007. PDF: 547KB)
- From July 2007 to December 2008 (Released June 22, 2007. PDF: 500KB)
- From April 2007 to September 2008 (Released: March 9, 2007. Version 2.0 released April 10. PDF: 483KB)
- From January 2007 to June 2008 (Released: December 21, 2006. PDF: 430KB)
- From October 2006 to March 2008 (Revised: October 2, 2006. PDF: 449KB)
- From July 2006 to December 2007 (Released: June 23, 2006. PDF: 433KB)
- From April 2006 to September 2007 (Released: March 24, 2006. PDF: 526KB)
- From January 2006 to June 2007 (Released: December 22, 2005. PDF: 925KB)
- From October 2005 to March 2007 (Released: September 27, 2005. Version 2.0 posted on October 24. PDF: 567KB)
- From July 2005 to December 2006 (Released: June 27, 2005. PDF: 415KB)
- From April 2005 to September 2006 (Released: March 23, 2005. Version 3.0 with correct hyperlinks posted on March 29. PDF: 395KB)
- From January 2005 to June 2006 (Released: December 22, 2004. PDF: 488KB)
- From October 2004 to March 2006 (Released: September 24, 2004. PDF: 496KB)
- From July 2004 to December 2005 (Released: June 23, 2004. PDF: 250KB)
- From April 2004 to September 2005 (Released: March 25, 2004. PDF: 275KB)
- From January 2004 to June 2005 (Released: December 19, 2003. PDF: 278KB)
- From October 2003 to March 2005 (Released: September 24, 2003. PDF: 396KB)
- From July 2003 to December 2004 (Released: June 25, 2003. PDF: 437KB)
- From April 2003 to September 2004 (Released: March 25, 2003. PDF: 417KB)
- From January 2003 to June 2004 (Released: December 23, 2002. PDF: 399KB)
- From October 2002 to March 2004 (Released: September 24, 2002. PDF: 387KB)
- From July 2002 to December 2003 (Released: June 24, 2002. PDF: 385KB)
- From April 2002 to September 2003 (Released: April 3, 2002. PDF: 355KB)
- From January 2002 to June 2003 (Released: December 21, 2001. PDF: 341KB)
- From October 2001 to March 2003 (Released: October 1, 2001. PDF: 1.83MB)
- From April 2001 to September 2002 (Released: May 2, 2001. PDF: 1.59MB)
- From October 2000 to March 2002 (Released: December 6, 2000. PDF: 186KB)
- March 2000 to August 2001
Ontario Reliability Outlook:
The Ontario Reliability Outlook reports on progress of the inter-related generation, transmission and demand management projects underway to meet future reliability requirements.
10-Year Outlook Report:
An assessment of the adequacy of generation and transmission facilities.
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