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Power Data

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

Ontario Demand at 11:00 a.m. EST
18,678 MW
Market Demand at 11:00 a.m. EST
20,886 MW
Hourly Output by Fuel Type at 11:00 a.m. EST
Nuclear
10,391 MW
Hydro
4,884 MW
Gas
1,352 MW
Wind
3,119 MW
Solar
13 MW
Biofuel
27 MW
Hourly Ontario Energy Price at 11:00 a.m. EST
$31.84 / MWh
Global Adjustment 1st Estimate (January)
$67.41/ 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.

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Supply Icon

Supply Overview

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

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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 Icon

Conservation Overview

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

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The Market Day

HOEP ($/MWh)

Dispatch    Pre-Dispatch

HE
1 33.65
2 30.42
3 32.12
4 21.11
5 28.58
6 13.96
7 26.35
8 33.00
9 30.80
10 29.09
11 31.84
12 31.74
13 32.60
14 31.74
15 31.74
16 31.74
17 32.64
18 31.74
19 31.74
20 31.74
21 31.74
22 31.74
23 30.98
24 30.96

Ontario Demand (MW)

Actual    Projected

HE
1 16,181
2 15,737
3 15,587
4 15,462
5 15,414
6 15,907
7 16,897
8 17,954
9 18,392
10 18,427
11 18,678
12 18,354
13 18,482
14 18,345
15 18,120
16 18,277
17 19,104
18 19,443
19 19,454
20 19,202
21 18,765
22 17,976
23 16,941
24 15,935

Market Demand (MW)

Actual    Projected

HE
1 18,468
2 17,110
3 17,766
4 17,377
5 17,427
6 17,765
7 18,660
8 19,530
9 19,841
10 19,806
11 20,886
12 21,196
13 21,204
14 21,040
15 21,086
16 21,112
17 21,922
18 22,205
19 22,123
20 21,884
21 21,433
22 20,774
23 19,397
24 18,283
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 2019 67.41
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
Jun 2018 133.36 102.39 118.96 18.34
May 2018 93.92 131.99 107.93 13.12
Apr 2018 98.10 100.74 99.59 29.66
Mar 2018 78.77 85.95 94.81 17.2
Feb 2018 73.33 77.05 81.67 19.01
Date 1st 2nd Actual Rate Avg. HOEP
Jan 2019 6.74
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
Jun 2018 13.34 10.24 11.90 1.83
May 2018 9.39 13.20 10.79 1.31
Apr 2018 9.81 10.07 9.96 2.97
Mar 2018 7.88 8.60 9.48 1.72
Feb 2018 7.33 7.71 8.17 1.90
Peak Tracker

Top 10 Ontario Demand Peaks from May 1, 2018 to April 30, 2019

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

as of 23 Jan 2019


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 05 Sep 2018 18 23,240 22,399
2 05 Jul 2018 16 23,046 22,377
3 04 Jul 2018 19 22,518 22,017
4 28 Aug 2018 17 21,990 21,644
5 04 Sep 2018 17 21,885 21,379
6 03 Jul 2018 19 21,761 21,291
7 16 Jul 2018 12 21,536 20,954
8 21 Jan 2019 18 21,525
9 15 Jul 2018 18 21,508 20,924
10 24 Jul 2018 17 21,451 20,943

* This column is reflected in the demand chart above