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

Ontario Demand at 9:00 p.m. EST
16,790 MW
Market Demand at 9:00 p.m. EST
18,423 MW
Hourly Output by Fuel Type at 9:00 p.m. EST
Nuclear
10,240 MW
Hydro
4,522 MW
Gas
640 MW
Wind
2,554 MW
Solar
0 MW
Biofuel
28 MW
Hourly Ontario Energy Price at 9:00 p.m. EST
$9.53 / MWh
Global Adjustment 1st Estimate (November)
$111.64/ 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 13.34
2 13.34
3 13.34
4 13.33
5 15.50
6 10.48
7 25.03
8 36.09
9 32.49
10 35.37
11 30.06
12 33.78
13 12.13
14 10.92
15 7.88
16 13.03
17 114.31
18 77.76
19 15.22
20 10.03
21 9.53
22 14.34
23 6.06
24 4.81

Ontario Demand (MW)

Actual    Projected

HE
1 14,050
2 13,586
3 13,383
4 13,354
5 13,492
6 14,161
7 15,490
8 16,486
9 16,767
10 16,408
11 16,144
12 15,736
13 15,654
14 15,613
15 15,677
16 16,230
17 17,186
18 18,026
19 17,618
20 17,214
21 16,790
22 16,434
23 15,531
24 14,535

Market Demand (MW)

Actual    Projected

HE
1 16,111
2 15,597
3 15,438
4 15,414
5 15,545
6 16,032
7 17,337
8 18,266
9 18,477
10 18,116
11 17,840
12 17,574
13 17,368
14 17,439
15 17,394
16 18,037
17 18,766
18 19,599
19 19,245
20 18,839
21 18,422
22 18,478
23 17,915
24 17,210
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 2017 66.87 86.77 82.27 21.56
Feb 2017 105.59 84.30 86.39 21.11
Mar 2017 84.09 68.86 71.35 26.03
Apr 2017 68.74 102.18 107.78 11.14
May 2017 106.23 127.76 123.07 3.17
Jun 2017 119.54 125.63 118.48 5.89
Jul 2017 106.52 101.97 112.80 13.61
Aug 2017 115.00 104.76 101.09 17.28
Sep 2017 127.39 98.95 88.64 23.13
Oct 2017 102.12 119.73 125.63 8.75
Nov 2017 111.64
Dec 2017
Date 1st 2nd Actual Rate Avg. HOEP
Jan 2017 6.69 8.68 8.23 2.16
Feb 2017 10.56 8.43 8.64 2.11
Mar 2017 8.41 6.89 7.14 2.60
Apr 2017 6.87 10.22 10.78 1.11
May 2017 10.62 12.78 12.31 0.32
Jun 2017 11.95 12.56 11.85 0.59
Jul 2017 10.65 10.20 11.28 1.36
Aug 2017 11.50 10.48 10.11 1.73
Sep 2017 12.74 9.90 8.86 2.31
Oct 2017 10.21 11.97 12.56 0.88
Nov 2017 11.16
Dec 2017
Peak Tracker

Top 10 Ontario Demand Peaks from May 1, 2017 to April 30, 2018

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

as of 17 Nov 2017


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 25 Sep 2017 17 21,786 21,171
2 26 Sep 2017 17 21,542 21,039
3 12 Jun 2017 17 21,168 20,702
4 19 Jul 2017 19 20,627 20,024
5 24 Sep 2017 18 20,457 19,854
6 06 Jul 2017 18 20,366 19,869
7 11 Jul 2017 18 20,302 19,691
8 21 Jul 2017 17 20,192 19,730
9 21 Aug 2017 17 20,158 19,836
10 27 Sep 2017 13 20,122 19,601

* This column is reflected in the demand chart above