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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 3:00 a.m. EST
11,254 MW
Market Demand at 3:00 a.m. EST
14,435 MW
Hourly Output by Fuel Type at 3:00 a.m. EST
Nuclear
10,073 MW
Hydro
3,924 MW
Gas
106 MW
Wind
203 MW
Solar
0 MW
Biofuel
11 MW
Hourly Ontario Energy Price at 3:00 a.m. EST
($4.33) / MWh
Global Adjustment 1st Estimate (June)
$124.44 / 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 -4.28
2 -4.40
3 -4.33
4 -4.30
5 -4.00
6 5.56
7 5.00
8 5.00
9 5.00
10 5.00
11 5.00
12 5.00
13 6.65
14 13.37
15 13.38
16 15.69
17 15.00
18 15.00
19 15.00
20 15.00
21 15.00
22 13.36
23 5.72
24 -4.30

Ontario Demand (MW)

Actual    Projected

HE
1 11,581
2 11,370
3 11,254
4 11,284
5 12,359
6 13,566
7 14,180
8 14,554
9 14,646
10 14,735
11 14,850
12 14,925
13 15,058
14 15,170
15 15,320
16 15,742
17 16,272
18 16,561
19 16,718
20 16,628
21 16,296
22 15,302
23 14,157
24 13,231

Market Demand (MW)

Actual    Projected

HE
1 14,527
2 14,458
3 14,435
4 14,812
5 15,786
6 16,501
7 17,398
8 17,697
9 17,735
10 17,813
11 17,930
12 17,930
13 17,810
14 17,873
15 17,993
16 18,389
17 18,910
18 19,152
19 19,294
20 19,149
21 18,828
22 17,803
23 16,724
24 15,090
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
Jun 2019 124.44
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
Jul 2018 85.02 81.23 77.37 30.38
Date 1st 2nd Actual Rate Avg. HOEP
Jun 2019 12.44
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
Jul 2018 8.50 8.12 7.74 3.04
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 Jun 2019


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 01 May 2019 20 16,784 16,148
2 13 May 2019 20 16,510 16,009
3 02 May 2019 20 16,451 15,953
4 07 Jun 2019 19 16,369
5 10 Jun 2019 17 16,253
6 12 Jun 2019 19 16,247
7 05 Jun 2019 20 16,221
8 11 Jun 2019 19 16,107
9 09 May 2019 17 16,033 15,350
10 06 May 2019 20 16,015 15,428

* This column is reflected in the demand chart above