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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 1:00 a.m. EST
15,720 MW
Market Demand at 1:00 a.m. EST
18,592 MW
Hourly Output by Fuel Type at 1:00 a.m. EST
Nuclear
11,194 MW
Hydro
3,133 MW
Gas
1,516 MW
Wind
1,015 MW
Solar
0 MW
Biofuel
13 MW
Hourly Ontario Energy Price at 1:00 a.m. EST
$23.42 / 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 23.42
2 13.35
3 13.30
4 13.27
5 13.34
6 23.60
7 25.00
8 25.00
9 26.38
10 31.90
11 39.65
12 46.23
13 48.45
14 52.73
15 75.00
16 74.08
17 75.00
18 74.89
19 47.28
20 41.23
21 40.72
22 30.00
23 25.31
24 21.70

Ontario Demand (MW)

Actual    Projected

HE
1 15,720
2 14,922
3 14,531
4 14,402
5 15,087
6 16,200
7 17,342
8 18,162
9 18,835
10 19,157
11 19,640
12 19,953
13 20,206
14 20,500
15 20,906
16 21,290
17 21,450
18 21,400
19 21,200
20 20,700
21 20,320
22 19,206
23 17,545
24 16,177

Market Demand (MW)

Actual    Projected

HE
1 18,592
2 18,254
3 17,797
4 17,717
5 18,366
6 19,279
7 19,777
8 20,706
9 21,526
10 21,756
11 22,241
12 22,221
13 22,750
14 23,048
15 23,344
16 23,540
17 23,652
18 23,757
19 23,620
20 23,148
21 22,916
22 21,928
23 20,339
24 17,669
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 17 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 03 Jul 2019 18 20,784
5 11 Jul 2019 13 20,760
6 16 Jul 2019 17 20,496
7 15 Jul 2019 17 20,406
8 09 Jul 2019 18 20,298
9 06 Jul 2019 17 20,281
10 02 Jul 2019 17 20,255

* This column is reflected in the demand chart above