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

Ontario Demand at 6:00 p.m. EST
18,502 MW
Market Demand at 6:00 p.m. EST
20,124 MW
Hourly Output by Fuel Type at 6:00 p.m. EST
Nuclear
11,381 MW
Hydro
4,525 MW
Gas
1,377 MW
Wind
2,276 MW
Solar
0 MW
Biofuel
27 MW
Hourly Ontario Energy Price at 6:00 p.m. EST
$0.81 / 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 14.05
13 11.21
14 15.52
15 17.18
16 4.55
17 0.95
18 0.81
19 17.38
20 13.00
21 13.00
22 12.49
23 6.04
24 5.88

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 16,881
13 16,923
14 16,753
15 16,880
16 17,147
17 17,710
18 18,502
19 18,756
20 18,080
21 17,707
22 17,031
23 16,044
24 14,985

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 18,787
13 19,225
14 18,943
15 19,066
16 19,254
17 19,422
18 20,124
19 20,738
20 20,221
21 19,973
22 19,444
23 18,131
24 17,246
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