Skip Links
Power Data

Power Data

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

Ontario Demand at 2:00 p.m. EST
18,949 MW
Market Demand at 2:00 p.m. EST
20,231 MW
Hourly Output by Fuel Type at 2:00 p.m. EST
Nuclear
10,767 MW
Hydro
3,902 MW
Gas
2,734 MW
Wind
1,344 MW
Solar
127 MW
Biofuel
10 MW
Hourly Ontario Energy Price at 2:00 p.m. EST
$35.43 / MWh
Global Adjustment 1st Estimate (August)
$77.90/ 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 0.48
2 2.38
3 4.04
4 20.04
5 7.16
6 8.36
7 18.53
8 11.22
9 25.23
10 29.62
11 30.48
12 31.80
13 33.89
14 35.43
15 34.99
16 33.72
17 32.97
18 30.45
19 30.42
20 32.96
21 32.97
22 31.49
23 14.38
24 5.57

Ontario Demand (MW)

Actual    Projected

HE
1 14,415
2 13,886
3 13,733
4 13,867
5 14,126
6 15,069
7 16,421
8 17,174
9 17,424
10 17,771
11 18,506
12 18,639
13 18,860
14 18,949
15 19,050
16 19,250
17 19,350
18 19,200
19 18,750
20 18,550
21 18,200
22 16,900
23 15,500
24 14,400

Market Demand (MW)

Actual    Projected

HE
1 16,132
2 16,084
3 16,083
4 16,111
5 16,136
6 16,833
7 18,065
8 18,600
9 18,772
10 19,286
11 20,199
12 20,256
13 20,265
14 20,231
15 20,775
16 20,852
17 21,092
18 21,018
19 20,548
20 20,173
21 19,742
22 18,524
23 17,354
24 15,714
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 77.05 81.67 19.01
Mar 2018 78.77 85.95 94.81 17.2
Apr 2018 98.10 100.74 99.59 29.66
May 2018 93.92 131.99 107.93 13.12
Jun 2018 133.36 102.39 118.96 18.34
Jul 2018 85.02 81.23 77.37 30.38
Aug 2018 77.90
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 7.71 8.17 1.90
Mar 2018 7.88 8.60 9.48 1.72
Apr 2018 9.81 10.07 9.96 2.97
May 2018 9.39 13.20 10.79 1.31
Jun 2018 13.34 10.24 11.90 1.83
Jul 2018 8.50 8.12 7.74 3.04
Aug 2018 7.79
Sep 2018
Oct 2018
Nov 2018
Dec 2018
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 21 Aug 2018


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 05 Jul 2018 16 23,046 22,377
2 04 Jul 2018 19 22,518 22,017
3 03 Jul 2018 19 21,761 21,291
4 16 Jul 2018 12 21,536 20,954
5 15 Jul 2018 18 21,508 20,924
6 24 Jul 2018 17 21,451 20,943
7 09 Jul 2018 18 21,412 20,808
8 18 Jun 2018 10 21,369 20,532
9 14 Aug 2018 17 21,362
10 15 Aug 2018 20 21,350

* This column is reflected in the demand chart above