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Power Data

Power Data

This section provides easy access to market data, including real-time and historical reports.

Ontario Demand at 4:00 a.m. EST
12,548 MW
Market Demand at 4:00 a.m. EST
16,137 MW
Hourly Output by Fuel Type at 4:00 a.m. EST
Nuclear
11,186 MW
Hydro
3,389 MW
Gas
151 MW
Wind
1,216 MW
Solar
0 MW
Biofuel
11 MW
Hourly Ontario Energy Price at 4:00 a.m. EST
($3.00) / MWh
Global Adjustment 1st Estimate (June)
$124.44 / MWh
Ontario Demand
Market Demand
Compare With
Compare With
Compare With Ontario Demand
Compare With Market Demand

Download XML: Demand | Supply | Price

Data Directory

A collection of all reports provided on the IESO Public Reports site as well as access to historical data.

The IESO uses the "Hour Ending" naming convention for the hours in a day. For example, Hour 1 is from 12 am. to 1 am., Hour 2 is from 1 am. to 2 am. Hours 1-24 are the hours from midnight one day through midnight the next day. Eastern Standard Time is used year round.

Demand Icon

Demand Overview

Read more about Ontario’s electricity demand records, forecasts and related real-time reports.

Supply Icon

Supply Overview

Get current and historical data for Ontario's transmission and distribution level supply and yearly import/export data.

Price Icon

Price Overview

Learn about electricity price trends and gain access to historical monthly average prices, global adjustment rates and time-of-use.

Conservation Icon

Conservation Overview

Learn about the progress made by Ontario's electricity conservation and demand response programs.

The Market Day

HOEP ($/MWh)

Dispatch    Pre-Dispatch

HE
1 -4.08
2 -4.17
3 -3.58
4 -3.00
5 -0.10
6 0.00
7 0.00
8 0.00
9 0.00
10 0.00
11 0.00
12 0.00
13 0.00
14 5.72
15 5.90
16 5.90
17 6.31
18 6.20
19 6.31
20 5.94
21 5.94
22 0.00
23 0.00
24 -4.00

Ontario Demand (MW)

Actual    Projected

HE
1 13,241
2 12,777
3 12,626
4 12,548
5 12,921
6 14,620
7 15,624
8 15,927
9 16,219
10 16,324
11 16,471
12 16,551
13 16,721
14 16,841
15 17,013
16 17,407
17 17,746
18 17,853
19 17,912
20 17,713
21 17,433
22 16,442
23 15,007
24 13,967

Market Demand (MW)

Actual    Projected

HE
1 15,378
2 15,174
3 15,936
4 16,136
5 16,811
6 18,086
7 18,858
8 18,974
9 19,228
10 19,197
11 19,439
12 19,529
13 20,106
14 20,266
15 20,496
16 20,711
17 20,466
18 20,373
19 20,467
20 20,224
21 20,591
22 19,368
23 17,998
24 15,810
Recent Summaries

Daily

Monthly

Global Adjustment Rates

Global Adjustment (GA) Rates and Average Hourly Ontario Energy Price

*Preliminary values for average HOEP will be available soon after month end, and can be confirmed in the Monthly Market Report. Global Adjustment values will be finalized 10 business days after month end.


Date 1st 2nd Actual Rate Avg. HOEP
Jun 2019 124.44
May 2019 128.60 130.49 126.04 7.58
Apr 2019 81.29 124.88 123.33 15.57
Mar 2019 81.05 75.75 80.41 27.34
Feb 2019 96.57 82.36 88.12 27.89
Jan 2019 67.41 83.06 80.92 27.82
Dec 2018 91.98 70.67 74.04 27.89
Nov 2018 122.35 105.40 98.55 25.14
Oct 2018 89.21 119.98 120.59 13.84
Sep 2018 84.24 86.60 85.84 29.94
Aug 2018 77.90 73.24 74.90 30.59
Jul 2018 85.02 81.23 77.37 30.38
Date 1st 2nd Actual Rate Avg. HOEP
Jun 2019 12.44
May 2019 12.86 13.05 12.60 0.76
Apr 2019 8.13 12.49 12.33 1.56
Mar 2019 8.11 7.58 8.04 2.73
Feb 2019 9.66 8.24 8.81 2.79
Jan 2019 6.74 8.31 8.09 2.78
Dec 2018 9.20 7.07 7.40 2.79
Nov 2018 12.24 10.54 9.86 2.51
Oct 2018 8.92 12.00 12.06 1.38
Sep 2018 8.42 8.66 8.58 2.99
Aug 2018 7.79 7.32 7.49 3.06
Jul 2018 8.50 8.12 7.74 3.04
Peak Tracker

Top 10 Ontario Demand Peaks from May 1, 2019 to April 30, 2020

New Ontario demand records are updated in real time. Verified Ontario demand values (AQEW) published 20 business days later.

as of 25 Jun 2019


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 24 Jun 2019 17 18,193
2 19 Jun 2019 19 17,896
3 18 Jun 2019 19 17,520
4 23 Jun 2019 19 16,913
5 01 May 2019 20 16,784 16,148
6 20 Jun 2019 17 16,709
7 13 May 2019 20 16,510 16,009
8 02 May 2019 20 16,451 15,953
9 07 Jun 2019 19 16,369
10 10 Jun 2019 17 16,253

* This column is reflected in the demand chart above