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

Ontario Demand at 8:00 p.m. EST
17,338 MW
Market Demand at 8:00 p.m. EST
18,956 MW
Hourly Output by Fuel Type at 8:00 p.m. EST
Nuclear
10,174 MW
Hydro
5,221 MW
Gas
831 MW
Wind
1,078 MW
Solar
0 MW
Biofuel
0 MW
Hourly Ontario Energy Price at 8:00 p.m. EST
$37.55 / MWh
Global Adjustment 1st Estimate (February)
$73.33/ 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 13.32
2 13.35
3 13.34
4 13.35
5 13.36
6 13.33
7 12.73
8 6.05
9 10.93
10 14.37
11 39.80
12 14.36
13 11.89
14 15.45
15 19.52
16 15.42
17 14.92
18 22.21
19 31.56
20 30.26
21 30.26
22 25.00
23 14.37
24 13.01

Ontario Demand (MW)

Actual    Projected

HE
1 14,845
2 14,444
3 14,118
4 14,057
5 14,064
6 14,186
7 14,753
8 15,143
9 15,626
10 16,028
11 16,178
12 16,240
13 16,108
14 16,158
15 16,214
16 16,369
17 16,645
18 17,365
19 17,880
20 17,338
21 17,116
22 16,474
23 15,684
24 14,915

Market Demand (MW)

Actual    Projected

HE
1 17,375
2 17,223
3 17,004
4 17,009
5 17,049
6 17,099
7 17,040
8 17,539
9 17,968
10 18,360
11 18,494
12 18,834
13 18,775
14 18,794
15 18,656
16 18,435
17 18,248
18 19,008
19 19,291
20 18,956
21 19,170
22 19,022
23 18,191
24 17,628
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 2018 87.77 63.70 67.36 32.12
Feb 2018 73.33
Mar 2018
Apr 2018
May 2018
Jun 2018
Jul 2018
Aug 2018
Sep 2018
Oct 2018
Nov 2018
Dec 2018
Date 1st 2nd Actual Rate Avg. HOEP
Jan 2018 8.78 6.37 6.74 3.21
Feb 2018 7.33
Mar 2018
Apr 2018
May 2018
Jun 2018
Jul 2018
Aug 2018
Sep 2018
Oct 2018
Nov 2018
Dec 2018
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 Feb 2018


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 05 Jan 2018 18 20,906 20,238
5 06 Jan 2018 18 20,768 20,046
6 19 Jul 2017 19 20,627 20,024
7 24 Sep 2017 18 20,457 19,854
8 07 Jan 2018 18 20,429 19,683
9 03 Jan 2018 18 20,380 19,887
10 06 Jul 2017 18 20,366 19,869

* This column is reflected in the demand chart above