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

Ontario Demand at 4:00 a.m. EST
13,842 MW
Market Demand at 4:00 a.m. EST
15,778 MW
Hourly Output by Fuel Type at 3:00 a.m. EST
Nuclear
9,686 MW
Hydro
3,109 MW
Gas
2,005 MW
Wind
278 MW
Solar
0 MW
Biofuel
18 MW
Hourly Ontario Energy Price at 4:00 a.m. EST
$13.01 / MWh
Global Adjustment 1st Estimate (September)
$127.39/ 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 30.13
2 25.91
3 16.41
4 17.12
5 24.03
6 35.00
7 44.00
8 45.13
9 47.46
10 47.46
11 62.23
12 76.14
13 91.17
14 200.00
15 200.00
16 271.47
17 273.00
18 240.00
19 232.86
20 150.00
21 95.73
22 47.45
23 45.76
24 34.06

Ontario Demand (MW)

Actual    Projected

HE
1 14,858
2 14,246
3 13,831
4 14,057
5 14,867
6 16,489
7 17,758
8 18,340
9 18,950
10 19,250
11 19,780
12 20,311
13 20,748
14 20,978
15 21,151
16 21,523
17 21,700
18 21,542
19 21,804
20 21,370
21 20,251
22 18,841
23 17,318
24 16,064

Market Demand (MW)

Actual    Projected

HE
1 15,917
2 15,792
3 15,468
4 16,300
5 16,613
6 17,912
7 19,056
8 19,416
9 19,755
10 20,033
11 20,762
12 21,393
13 22,009
14 22,261
15 22,451
16 22,786
17 22,869
18 22,711
19 22,985
20 22,498
21 21,306
22 19,966
23 18,391
24 17,209
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
Sep 2017 127.39
Oct 2017
Nov 2017
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
Sep 2017 12.74
Oct 2017
Nov 2017
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 26 Sep 2017


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 25 Sep 2017 17 21,786
2 12 Jun 2017 17 21,168 20,702
3 19 Jul 2017 19 20,627 20,024
4 24 Sep 2017 18 20,457
5 06 Jul 2017 18 20,366 19,869
6 11 Jul 2017 18 20,302 19,691
7 21 Jul 2017 17 20,192 19,730
8 21 Aug 2017 17 20,158 19,836
9 31 Jul 2017 17 20,096 19,720
10 01 Aug 2017 14 20,079 19,577

* This column is reflected in the demand chart above