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Electricity Supply Mix

In Ontario, electricity is produced from a number of sources. The Electricty Supply Mix, for an electricity product, is the combination of power sources used to generate the product.

The following chart shows the combination of electricity sources used to generate the electricity consumed in Ontario in 2016.

 Ontario's Electricity Supply Mix 2016

Note: Figures may not add to 100% due to rounding.

Fuel Source % of Total Supply  


Hydro 23.3%
Alternative power sources (wind, biofuel, solar) 9.5%

Natural Gas


2016 information courtesy the Ontario Energy Board.

For a near real-time supply mix breakdown, please visit the Independent Electricity System Operator