Skip Links
Power Data

Power Data

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

Ontario Demand at 6:00 a.m. EST
14,081 MW
Market Demand at 6:00 a.m. EST
16,483 MW
Hourly Output by Fuel Type at 6:00 a.m. EST
Nuclear
9,084 MW
Hydro
3,917 MW
Gas
896 MW
Wind
1,626 MW
Solar
0 MW
Biofuel
0 MW
Hourly Ontario Energy Price at 6:00 a.m. EST
$19.16 / MWh
Global Adjustment 1st Estimate (February)
$96.57/ 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.

Learn more >
Supply Icon

Supply Overview

Get current and historical data for Ontario's transmission and distribution level supply and yearly import/export data.

Learn more >
Price Icon

Price Overview

Learn about electricity price trends and gain access to historical monthly average prices, global adjustment rates and time-of-use.

Learn more >
Conservation Icon

Conservation Overview

Learn about the progress made by Ontario's electricity conservation and demand response programs.

Learn more >
The Market Day

HOEP ($/MWh)

Dispatch    Pre-Dispatch

HE
1 27.50
2 41.18
3 29.80
4 25.79
5 46.86
6 25.75
7 25.75
8 24.02
9 25.75
10 25.75
11 25.75
12 25.75
13 25.75
14 25.75
15 25.75
16 25.75
17 25.75
18 25.75
19 25.75
20 25.75
21 25.75
22 25.75
23 25.75
24 16.86

Ontario Demand (MW)

Actual    Projected

HE
1 14,749
2 14,331
3 13,931
4 13,880
5 13,872
6 14,081
7 14,774
8 15,335
9 15,693
10 15,766
11 15,678
12 15,630
13 15,479
14 15,293
15 15,225
16 15,364
17 16,229
18 16,970
19 17,336
20 17,071
21 16,564
22 15,971
23 15,220
24 14,425

Market Demand (MW)

Actual    Projected

HE
1 16,749
2 16,500
3 16,254
4 16,333
5 16,329
6 16,482
7 17,152
8 17,489
9 18,468
10 18,568
11 18,455
12 18,369
13 18,208
14 18,105
15 18,027
16 18,190
17 19,101
18 19,474
19 19,728
20 19,450
21 19,104
22 18,507
23 17,431
24 17,228
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
Feb 2019 96.57
Jan 2019 67.41 83.06 80.92 27.82
Dec 2018 91.98 70.67 74.04 27.89
Nov 2018 122.35 105.40 98.55 25.14
Oct 2018 89.21 119.98 120.59 13.84
Sep 2018 84.24 86.60 85.84 29.94
Aug 2018 77.90 73.24 74.90 30.59
Jul 2018 85.02 81.23 77.37 30.38
Jun 2018 133.36 102.39 118.96 18.34
May 2018 93.92 131.99 107.93 13.12
Apr 2018 98.10 100.74 99.59 29.66
Mar 2018 78.77 85.95 94.81 17.2
Date 1st 2nd Actual Rate Avg. HOEP
Feb 2019 9.66
Jan 2019 6.74 8.31 8.09 2.78
Dec 2018 9.20 7.07 7.40 2.79
Nov 2018 12.24 10.54 9.86 2.51
Oct 2018 8.92 12.00 12.06 1.38
Sep 2018 8.42 8.66 8.58 2.99
Aug 2018 7.79 7.32 7.49 3.06
Jul 2018 8.50 8.12 7.74 3.04
Jun 2018 13.34 10.24 11.90 1.83
May 2018 9.39 13.20 10.79 1.31
Apr 2018 9.81 10.07 9.96 2.97
Mar 2018 7.88 8.60 9.48 1.72
Peak Tracker

Top 10 Ontario Demand Peaks from May 1, 2018 to April 30, 2019

New Ontario demand records are updated in real time. Verified Ontario demand values (AQEW) published 20 business days later.

as of 23 Feb 2019


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 05 Sep 2018 18 23,240 22,399
2 05 Jul 2018 16 23,046 22,377
3 04 Jul 2018 19 22,518 22,017
4 28 Aug 2018 17 21,990 21,644
5 04 Sep 2018 17 21,885 21,379
6 03 Jul 2018 19 21,761 21,291
7 16 Jul 2018 12 21,536 20,954
8 21 Jan 2019 18 21,525 20,829
9 15 Jul 2018 18 21,508 20,924
10 24 Jul 2018 17 21,451 20,943

* This column is reflected in the demand chart above