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

Ontario Demand at 11:00 a.m. EST
16,959 MW
Market Demand at 11:00 a.m. EST
18,936 MW
Hourly Output by Fuel Type at 11:00 a.m. EST
Nuclear
11,261 MW
Hydro
4,611 MW
Gas
537 MW
Wind
1,567 MW
Solar
42 MW
Biofuel
27 MW
Hourly Ontario Energy Price at 11:00 a.m. EST
$22.27 / 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 8.75
2 8.11
3 4.45
4 1.01
5 0.51
6 7.44
7 12.24
8 62.78
9 140.00
10 36.12
11 22.27
12 29.38
13 13.01
14 13.00
15 13.01
16 30.13
17 29.03
18 29.98
19 31.25
20 29.48
21 33.52
22 31.14
23 14.35
24 5.87

Ontario Demand (MW)

Actual    Projected

HE
1 14,274
2 13,827
3 13,628
4 13,551
5 13,630
6 14,330
7 15,604
8 16,937
9 17,164
10 17,122
11 16,959
12 16,846
13 16,748
14 16,719
15 16,862
16 17,507
17 18,437
18 18,908
19 18,756
20 18,484
21 18,113
22 17,377
23 16,323
24 15,131

Market Demand (MW)

Actual    Projected

HE
1 16,527
2 16,206
3 15,902
4 15,867
5 15,906
6 16,675
7 17,843
8 19,020
9 19,279
10 19,234
11 18,936
12 19,066
13 19,630
14 19,402
15 19,566
16 19,880
17 20,658
18 20,692
19 20,696
20 20,359
21 19,901
22 19,534
23 18,415
24 17,368
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 23 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