Skip Links
Power Data

Power Data

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

Ontario Demand at 8:00 p.m. EST
16,733 MW
Market Demand at 8:00 p.m. EST
18,795 MW
Hourly Output by Fuel Type at 7:00 p.m. EST
Nuclear
10,734 MW
Hydro
5,123 MW
Gas
1,010 MW
Wind
627 MW
Solar
0 MW
Biofuel
28 MW
Hourly Ontario Energy Price at 8:00 p.m. EST
$37.04 / MWh
Global Adjustment 1st Estimate (October)
$89.21/ 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 0.00
2 -0.05
3 -0.07
4 -0.01
5 0.48
6 5.31
7 17.37
8 31.22
9 115.41
10 61.41
11 10.17
12 14.37
13 49.99
14 14.37
15 5.96
16 13.85
17 19.60
18 33.43
19 40.19
20 39.23
21 31.78
22 13.35
23 5.94
24 0.00

Ontario Demand (MW)

Actual    Projected

HE
1 12,279
2 12,073
3 11,999
4 12,195
5 12,847
6 14,248
7 15,836
8 16,178
9 15,978
10 15,602
11 15,329
12 14,945
13 15,046
14 15,229
15 15,474
16 15,811
17 16,280
18 16,796
19 17,134
20 17,113
21 16,131
22 15,057
23 13,943
24 13,116

Market Demand (MW)

Actual    Projected

HE
1 14,322
2 14,120
3 14,094
4 14,229
5 14,861
6 16,262
7 17,525
8 18,127
9 17,857
10 17,505
11 17,385
12 16,962
13 17,061
14 17,193
15 17,530
16 17,823
17 18,203
18 18,734
19 19,151
20 19,353
21 18,346
22 17,287
23 16,051
24 15,273
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
Oct 2018 89.21
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
Feb 2018 73.33 77.05 81.67 19.01
Jan 2018 87.77 63.70 67.36 32.12
Dec 2017 83.91 96.69 92.07 20.63
Nov 2017 111.64 96.69 97.04 14.01
Date 1st 2nd Actual Rate Avg. HOEP
Oct 2018 8.92
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
Feb 2018 7.33 7.71 8.17 1.90
Jan 2018 8.78 6.37 6.74 3.21
Dec 2017 8.39 9.67 9.21 2.06
Nov 2017 11.16 9.67 9.70 1.40
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 22 Oct 2018


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 15 Jul 2018 18 21,508 20,924
9 24 Jul 2018 17 21,451 20,943
10 09 Jul 2018 18 21,412 20,808

* This column is reflected in the demand chart above