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

Ontario Demand at 11:00 p.m. EST
15,035 MW
Market Demand at 11:00 p.m. EST
17,252 MW
Hourly Output by Fuel Type at 11:00 p.m. EST
Nuclear
11,119 MW
Hydro
4,644 MW
Gas
238 MW
Wind
629 MW
Solar
0 MW
Biofuel
17 MW
Hourly Ontario Energy Price at 11:00 p.m. EST
$9.73 / MWh
Global Adjustment 1st Estimate (June)
$119.54/ 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 -1.53
2 -2.76
3 -1.83
4 -0.53
5 -0.81
6 5.96
7 8.27
8 13.35
9 1.53
10 14.40
11 27.83
12 77.72
13 20.00
14 -0.75
15 -0.01
16 0.00
17 3.35
18 0.49
19 14.99
20 23.92
21 20.85
22 146.24
23 9.73
24 6.06

Ontario Demand (MW)

Actual    Projected

HE
1 13,314
2 12,849
3 12,682
4 12,751
5 13,119
6 14,413
7 15,726
8 16,727
9 16,973
10 17,186
11 17,418
12 17,294
13 17,272
14 17,334
15 17,442
16 17,668
17 18,054
18 17,699
19 17,680
20 17,403
21 17,330
22 16,448
23 15,035
24 13,714

Market Demand (MW)

Actual    Projected

HE
1 16,085
2 15,680
3 15,525
4 15,560
5 15,464
6 16,711
7 17,955
8 18,936
9 18,794
10 18,966
11 19,262
12 19,188
13 19,015
14 18,610
15 18,817
16 19,445
17 19,804
18 19,168
19 19,283
20 18,991
21 19,264
22 18,672
23 17,252
24 16,225
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
Jul 2017
Aug 2017
Sep 2017
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
Jul 2017
Aug 2017
Sep 2017
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 23 Jun 2017


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 12 Jun 2017 17 21,168
2 16 Jun 2017 17 19,452
3 11 Jun 2017 19 19,062
4 13 Jun 2017 19 19,029
5 19 Jun 2017 18 18,770
6 23 Jun 2017 17 18,054
7 18 Jun 2017 17 18,003
8 14 Jun 2017 19 17,901
9 17 Jun 2017 14 17,827
10 18 May 2017 18 17,738 17,438

* This column is reflected in the demand chart above