Independent Electricity System Operator

Headquarters: Toronto, Ontario

Serves: Ontario

Installed Generation: 35,338 MW

Miles Transmission Lines: 18,160 miles

Population Served: 13 million

Website: ieso.ca

Documents: (links open PDFs in new window)
IESO Fast Facts
Ontario Reliability Outlook
Ontario Market Outlook
Ontario Smart Grid Forum Report
Consumer Forum Report
2008-2010 Business Plan
Today's Market
Security and Adequacy Assessment / System Status Reports

Link:
Ontario Energy Board