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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 2:00 p.m. EST
18,041 MW
Market Demand at 2:00 p.m. EST
20,073 MW
Hourly Output by Fuel Type at 2:00 p.m. EST
Nuclear
9,834 MW
Hydro
4,222 MW
Gas
1,547 MW
Wind
3,982 MW
Solar
65 MW
Biofuel
47 MW
Hourly Ontario Energy Price at 2:00 p.m. EST
$22.79 / MWh
Global Adjustment 1st Estimate (December)
$85.69/ 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.

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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 15.97
2 27.42
3 36.89
4 12.54
5 28.40
6 6.67
7 29.59
8 29.89
9 26.40
10 19.23
11 20.96
12 21.94
13 21.69
14 22.79
15 18.50
16 24.17
17 23.10
18 22.87
19 23.50
20 23.78
21 23.78
22 23.77
23 23.51
24 23.52

Ontario Demand (MW)

Actual    Projected

HE
1 15,518
2 15,052
3 14,654
4 14,581
5 14,687
6 15,603
7 16,874
8 18,063
9 18,163
10 17,905
11 17,658
12 17,881
13 17,968
14 18,041
15 18,025
16 18,800
17 19,636
18 20,035
19 19,875
20 19,693
21 19,340
22 18,619
23 17,529
24 16,397

Market Demand (MW)

Actual    Projected

HE
1 17,228
2 17,041
3 16,720
4 16,705
5 16,758
6 17,657
7 18,933
8 19,172
9 19,258
10 19,366
11 19,601
12 19,897
13 20,071
14 20,073
15 20,136
16 20,592
17 21,442
18 21,842
19 21,942
20 21,780
21 21,290
22 20,477
23 19,398
24 18,529
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
Dec 2019 85.69
Nov 2019 107.27 101.09 20.71
Oct 2019 178.78 118.86 136.80 7.25
Sep 2019 129.34 163.92 122.63 14.34
Aug 2019 72.11 109.74 126.07 16.13
Jul 2019 135.27 88.54 96.45 21.91
Jun 2019 124.44 147.72 137.28 4.83
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
Date 1st 2nd Actual Rate Avg. HOEP
Dec 2019 8.57
Nov 2019 10.73 10.11 2.07
Oct 2019 17.88 11.89 13.68 0.73
Sep 2019 12.93 16.39 12.26 1.43
Aug 2019 7.21 10.97 12.61 1.61
Jul 2019 13.53 8.85 9.65 2.19
Jun 2019 12.44 14.77 13.73 0.48
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
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 11 Dec 2019


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 29 Jul 2019 17 21,791 21,068
2 05 Jul 2019 17 21,716 21,275
3 20 Jul 2019 18 21,646 20,942
4 19 Jul 2019 12 21,545 21,006
5 04 Jul 2019 18 21,423 20,956
6 21 Aug 2019 17 21,354 20,848
7 30 Jul 2019 17 21,269 20,509
8 20 Aug 2019 17 21,145 20,533
9 10 Jul 2019 18 21,083 20,510
10 07 Aug 2019 18 21,033 20,428

* This column is reflected in the demand chart above