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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 7:00 a.m. EST
17,760 MW
Market Demand at 7:00 a.m. EST
20,145 MW
Hourly Output by Fuel Type at 7:00 a.m. EST
Nuclear
11,136 MW
Hydro
3,467 MW
Gas
3,026 MW
Wind
1,304 MW
Solar
40 MW
Biofuel
27 MW
Hourly Ontario Energy Price at 7:00 a.m. EST
$18.68 / 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.

Conservation Icon

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 27.76
9 38.33
10 45.00
11 68.00
12 35.63
13 45.48
14 45.96
15 44.56
16 65.00
17 66.37
18 66.37
19 50.92
20 68.15
21 44.00
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 19,504
9 20,650
10 21,000
11 21,400
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 22,194
9 22,930
10 22,970
11 23,388
12 24,119
13 24,501
14 24,697
15 24,652
16 24,704
17 24,732
18 24,569
19 24,309
20 24,122
21 23,693
22 22,705
23 21,678
24 19,424
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 18 Jul 2019 18 20,891
5 17 Jul 2019 17 20,870
6 03 Jul 2019 18 20,784
7 11 Jul 2019 13 20,760
8 16 Jul 2019 17 20,496
9 15 Jul 2019 17 20,406
10 09 Jul 2019 18 20,298

* This column is reflected in the demand chart above