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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 p.m. EST
14,259 MW
Market Demand at 12:00 p.m. EST
16,427 MW
Hourly Output by Fuel Type at 12:00 p.m. EST
Nuclear
11,233 MW
Hydro
2,914 MW
Gas
749 MW
Wind
342 MW
Solar
285 MW
Biofuel
0 MW
Hourly Ontario Energy Price at 12:00 p.m. EST
$8.37 / MWh
Global Adjustment 1st Estimate (August)
$72.11/ 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 1.38
2 -0.72
3 -1.52
4 -0.34
5 -0.05
6 0.00
7 0.86
8 15.23
9 12.75
10 6.96
11 7.71
12 8.37
13 13.00
14 14.42
15 13.00
16 21.94
17 21.95
18 22.73
19 23.54
20 23.54
21 23.54
22 21.94
23 18.41
24 0.00

Ontario Demand (MW)

Actual    Projected

HE
1 12,071
2 11,731
3 11,477
4 11,464
5 11,627
6 11,942
7 12,400
8 12,966
9 13,388
10 13,786
11 14,048
12 14,259
13 14,320
14 14,497
15 14,628
16 15,024
17 15,590
18 15,908
19 15,854
20 15,756
21 15,275
22 14,413
23 13,549
24 12,761

Market Demand (MW)

Actual    Projected

HE
1 14,398
2 14,166
3 14,140
4 14,299
5 14,314
6 14,235
7 14,499
8 15,135
9 15,592
10 15,880
11 16,172
12 16,427
13 16,828
14 17,062
15 17,271
16 17,532
17 18,045
18 18,159
19 18,086
20 18,053
21 17,710
22 16,675
23 15,893
24 14,266
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
Aug 2019 72.11
Jul 2019 135.27 88.54 96.45
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
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
Date 1st 2nd Actual Rate Avg. HOEP
Aug 2019 7.21
Jul 2019 13.53 8.85 9.65
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
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
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 Aug 2019


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 29 Jul 2019 17 21,791
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
7 30 Jul 2019 17 21,269
8 20 Aug 2019 17 21,145
9 10 Jul 2019 18 21,083 20,510
10 07 Aug 2019 18 21,033

* This column is reflected in the demand chart above