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Power Data

Power Data

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

Ontario Demand at 11:00 a.m. EST
21,326 MW
Market Demand at 11:00 a.m. EST
23,260 MW
Hourly Output by Fuel Type at 11:00 a.m. EST
Nuclear
11,141 MW
Hydro
4,575 MW
Gas
4,237 MW
Wind
1,326 MW
Solar
290 MW
Biofuel
94 MW
Hourly Ontario Energy Price at 11:00 a.m. EST
$28.41 / MWh
Global Adjustment 1st Estimate (July)
$135.27/ 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.

Supply Icon

Supply Overview

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

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 Overview

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

The Market Day

HOEP ($/MWh)

Dispatch    Pre-Dispatch

HE
1 14.04
2 1.90
3 5.93
4 10.72
5 0.41
6 4.92
7 18.68
8 24.88
9 25.72
10 29.21
11 28.41
12 33.67
13 39.52
14 50.00
15 42.52
16 44.54
17 46.89
18 46.90
19 29.36
20 58.85
21 39.23
22 44.00
23 32.06
24 21.35

Ontario Demand (MW)

Actual    Projected

HE
1 15,633
2 14,967
3 14,617
4 14,587
5 15,101
6 16,130
7 17,760
8 19,248
9 20,296
10 21,036
11 21,326
12 21,651
13 21,870
14 22,026
15 22,014
16 22,124
17 22,200
18 22,000
19 21,700
20 21,575
21 21,300
22 20,500
23 19,075
24 17,675

Market Demand (MW)

Actual    Projected

HE
1 18,419
2 17,740
3 17,601
4 17,581
5 17,988
6 19,029
7 20,145
8 21,618
9 22,292
10 22,782
11 23,260
12 23,906
13 24,114
14 24,364
15 24,160
16 24,358
17 24,466
18 24,359
19 23,901
20 23,749
21 23,416
22 22,721
23 21,675
24 19,488
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
Jul 2019 135.27
Jun 2019 124.44 147.72 137.28 4.83
May 2019 128.60 130.49 126.04 7.58
Apr 2019 81.29 124.88 123.33 15.57
Mar 2019 81.05 75.75 80.41 27.34
Feb 2019 96.57 82.36 88.12 27.89
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
Date 1st 2nd Actual Rate Avg. HOEP
Jul 2019 13.53
Jun 2019 12.44 14.77 13.73 0.48
May 2019 12.86 13.05 12.60 0.76
Apr 2019 8.13 12.49 12.33 1.56
Mar 2019 8.11 7.58 8.04 2.73
Feb 2019 9.66 8.24 8.81 2.79
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
Peak Tracker

Top 10 Ontario Demand Peaks from May 1, 2019 to April 30, 2020

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

as of 19 Jul 2019


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 05 Jul 2019 17 21,716
2 04 Jul 2019 18 21,423
3 10 Jul 2019 18 21,083
4 19 Jul 2019 10 21,036
5 18 Jul 2019 18 20,891
6 17 Jul 2019 17 20,870
7 03 Jul 2019 18 20,784
8 11 Jul 2019 13 20,760
9 16 Jul 2019 17 20,496
10 15 Jul 2019 17 20,406

* This column is reflected in the demand chart above