The Ontario Energy Report provides an up-to-date snapshot of Ontario’s energy sector.

Electricity Data
Second Quarter 2017

April – June 2017


Transmission Grid-connected Generation Output (Q2)
Nuclear 21.6 TWh 62.9%
Hydro 10.0 TWh 29.2%
Wind 1.8 TWh 5.1%
Gas 0.7 TWh 2.0%
Solar <1 TWh 0.5%
Biofuel <1 TWh 0.3%
Conservation Savings (Q2)
Net Peak Demand Savings 14 MW
Net Energy Savings 141 GWh


Ontario Grid-Connected Peak Demand (Q2)

21,168 MW

set June 12, 2017, 6:00 pm EST

Ontario Grid-Connected Peak Demand (for 2017)

21,168 MW

set in Q2 – June 12, 2017, 6:00 pm EST

Commodity Cost

Commodity Cost (Q2) – Class A (¢/kWh)
  Q2 YTD
Hourly Ontario Energy Price
(Unweighted average)
0.56 1.36
Global Adjustment
(Average, Class A)1
5.38 4.80
Total 5.94 6.16
Commodity Cost (Q2) – Class B (¢/kWh)
  Q2 YTD
Hourly Ontario Energy Price
(Weighted Average)
0.67 1.53
Global Adjustment
(Average, Class B)1
11.93 9.84
Total 12.60 11.37

1 Class A customers are large electricity consumers that pay Global Adjustment based on their proportion of energy use during the five hours of the year with the highest demand. All other customers are Class B.

Ontario’s Transmission Grid

Ontario's Power Grid map, View Full Map PDF

Electricity Report

Electricity Report cover, download Electricity Q2 2017 PDF

Electricity Data

Data used in creating the Electricity Report, downloadable in Excel format.

To open in Windows Internet Explorer, press "save".

What’s New

A collection of electricity reports and publications.

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