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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 12:00 a.m. EST
14,747 MW
Market Demand at 12:00 a.m. EST
17,826 MW
Hourly Output by Fuel Type at 11:00 p.m. EST
Nuclear
10,739 MW
Hydro
4,072 MW
Gas
1,023 MW
Wind
2,724 MW
Solar
0 MW
Biofuel
36 MW
Hourly Ontario Energy Price at 12:00 a.m. EST
$0.00 / MWh
Global Adjustment 1st Estimate (January)
$83.23/ 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
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Ontario Demand (MW)

Actual    Projected

HE
1 14,319
2 13,865
3 13,583
4 13,449
5 13,477
6 13,747
7 14,656
8 15,398
9 16,101
10 16,435
11 16,834
12 17,038
13 17,099
14 16,982
15 16,904
16 16,970
17 17,346
18 17,820
19 17,683
20 17,190
21 16,686
22 16,126
23 15,449
24 14,720

Market Demand (MW)

Actual    Projected

HE
1 17,908
2 17,743
3 16,841
4 16,666
5 16,624
6 16,712
7 17,055
8 17,528
9 18,411
10 18,424
11 18,966
12 19,435
13 19,524
14 19,350
15 19,247
16 19,338
17 19,781
18 20,455
19 20,378
20 19,957
21 19,273
22 18,508
23 17,685
24 16,986
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
Jan 2020 83.23
Dec 2019 85.69 90.66 93.21 21.91
Nov 2019 107.27 101.09 99.53 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
Date 1st 2nd Actual Rate Avg. HOEP
Jan 2020 8.32
Dec 2019 8.57 9.07 9.32 2.19
Nov 2019 10.73 10.11 9.95 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
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 24 Jan 2020


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