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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 10:00 p.m. EST
17,227 MW
Market Demand at 10:00 p.m. EST
18,881 MW
Hourly Output by Fuel Type at 10:00 p.m. EST
Nuclear
9,355 MW
Hydro
4,365 MW
Gas
4,076 MW
Wind
409 MW
Solar
0 MW
Biofuel
132 MW
Hourly Ontario Energy Price at 10:00 p.m. EST
$29.31 / MWh
Global Adjustment 1st Estimate (November)
$107.27/ 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 25.82
2 22.69
3 19.33
4 13.59
5 26.83
6 25.50
7 29.95
8 30.98
9 29.08
10 27.77
11 29.75
12 30.06
13 30.61
14 33.37
15 31.80
16 31.61
17 31.08
18 36.20
19 45.28
20 32.80
21 30.62
22 29.31
23 26.00
24 25.52

Ontario Demand (MW)

Actual    Projected

HE
1 13,989
2 13,853
3 13,659
4 13,588
5 13,829
6 14,366
7 15,634
8 17,042
9 17,239
10 17,282
11 17,315
12 17,240
13 17,110
14 17,126
15 17,352
16 17,612
17 18,238
18 18,982
19 18,654
20 18,353
21 17,846
22 17,226
23 16,244
24 15,223

Market Demand (MW)

Actual    Projected

HE
1 15,730
2 15,662
3 15,537
4 15,544
5 15,957
6 16,336
7 17,287
8 18,546
9 18,536
10 19,050
11 19,131
12 19,150
13 18,956
14 19,191
15 19,459
16 19,506
17 19,623
18 20,140
19 20,150
20 19,769
21 19,567
22 18,881
23 17,955
24 16,932
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
Nov 2019 107.27
Oct 2019 178.78 118.86 136.80
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
Dec 2018 91.98 70.67 74.04 27.89
Date 1st 2nd Actual Rate Avg. HOEP
Nov 2019 10.73
Oct 2019 17.88 11.89 13.68
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
Dec 2018 9.20 7.07 7.40 2.79
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 18 Nov 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