Helpful Tools

This collection of tools can help you navigate Ontario's electricity system.

The many components of Ontario’s electricity system, including the location of regional planning zones, transmission lines and power plants.

The real-time contribution of wind to Ontario’s electricity supply, showing total output on a minute-by-minute basis.

An online database of Ontario's Local Distribution Companies and the municipalities they service.

A repository of data about Ontario’s electricity system, from 2012 to the present.

Historical and projected peak electricity demand statistics for Ontario.

Managing the Power System | About the IESO

The IESO balances supply and demand – 24 hours a day, 7 days a week – ensuring that enough electricity is available across the province, when and where it is needed.