Quick Facts  

As at December 31, 2010

Our Business

• We are the largest electricity transmission and distribution company in Ontario, valued at $17.322 billion as measured by total assets.
• We own and operate substantially all of Ontario's electricity transmission system, accounting for about 96% of Ontario's transmission capacity as measured by revenues for the year 2010
• Our distribution system is the largest in Ontario and spans approximately 75% of the province.
• We distribute electricity though our 123,500 circuit km low-voltage distribution system, serving Ontario's rural areas and municipalities.
• We transmit energy through a 28,951 circuit km high-voltage network. Transmission lines are overhead except for 282 circuit km of underground lines in urban areas.
• We own and operate 26 facilities that interconnect our transmission system with systems in neighbouring provinces and states, which can accommodate imports of about 4,600 MW and exports of about 6,000 MW.
• Our transmission system also includes 284 transmission stations.
• Our distribution system also includes 1,008 distribution and regulating stations.
• Cumulative Smart Meters deployed: Over 1.3 million.
• Our telecommunications business markets dark and lit fibre optic capacity to telecommunications carriers and commercial customers.
• Number of vehicles/equipment in Fleet: 7,539.

Reportable Segments

• Transmission Business
• Distribution Business
• Other Business (primarily represented by the operations of Hydro One Telecom Inc.)

Our Customers

• Large User Customers: 412
• Remote Communities Served: 21
• Rural and Urban Distribution Customers: approximately 1.3 million
• Local Distribution Companies: 75

  Our Employees

• Full-time: 5,717 regular employees (in all subsidiaries)
• Non-Regular: 2,021 employees (includes temporary, contract and part-time)
• Pensioners: 7,066

Our Subsidiaries

• Hydro One Networks Inc.
• Hydro One Remote Communities Inc.
• Hydro One Telecom Inc.
• Hydro One Brampton Inc.

Our Electricity

• Total electricity transmitted in 2010: 142.2 TWh*
  
• All-time System Peak: 27,005 MW** (August 1, 2006)
• 2010 System Peak: 25,075 MW**
• 2009 System Peak: 24,380 MW**
• 2008 System Peak: 24,195 MW**
• 2007 System Peak: 25,737 MW**