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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 6:00 p.m. EST
15,351 MW
Market Demand at 6:00 p.m. EST
17,302 MW
Hourly Output by Fuel Type at 6:00 p.m. EST
Nuclear
10,085 MW
Hydro
5,054 MW
Gas
1,010 MW
Wind
885 MW
Solar
30 MW
Biofuel
75 MW
Hourly Ontario Energy Price at 6:00 p.m. EST
$13.37 / MWh
Global Adjustment 1st Estimate (April)
$137.07/ 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 9.82
2 10.32
3 5.26
4 5.69
5 2.15
6 5.49
7 13.52
8 14.45
9 13.99
10 15.84
11 17.36
12 17.71
13 17.17
14 14.19
15 13.37
16 13.35
17 13.38
18 13.37
19 13.39
20 13.47
21 13.47
22 13.47
23 13.34
24 5.29

Ontario Demand (MW)

Actual    Projected

HE
1 12,409
2 12,158
3 12,073
4 12,152
5 12,529
6 13,316
7 14,162
8 14,574
9 14,801
10 14,852
11 15,028
12 15,126
13 14,902
14 14,584
15 14,412
16 14,660
17 15,202
18 15,351
19 15,838
20 15,817
21 15,275
22 14,502
23 13,691
24 12,989

Market Demand (MW)

Actual    Projected

HE
1 14,994
2 14,673
3 14,471
4 14,756
5 14,934
6 15,625
7 16,439
8 16,857
9 16,907
10 16,925
11 17,100
12 17,120
13 16,872
14 16,438
15 16,284
16 16,510
17 17,115
18 17,302
19 17,935
20 17,885
21 17,466
22 17,059
23 16,245
24 15,308
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
Apr 2020 137.07
Mar 2020 104.32 112.12
Feb 2020 124.51 114.35 113.31 14.52
Jan 2020 83.23 99.93 102.32 14.82
Dec 2019 85.69 90.66 93.21 21.91
Nov 2019 107.27 101.09 99.53 20.71
Oct 2019 178.78 118.86 136.80 7.25
Sep 2019 129.34 163.92 122.63 14.34
Aug 2019 72.11 109.74 126.07 16.13
Jul 2019 135.27 88.54 96.45 21.91
Jun 2019 124.44 147.72 137.28 4.83
May 2019 128.60 130.49 126.04 7.58
Date 1st 2nd Actual Rate Avg. HOEP
Apr 2020 13.71
Mar 2020 10.43 11.21
Feb 2020 12.45 11.44 11.33 1.45
Jan 2020 8.32 9.99 10.23 1.48
Dec 2019 8.57 9.07 9.32 2.19
Nov 2019 10.73 10.11 9.95 2.07
Oct 2019 17.88 11.89 13.68 0.73
Sep 2019 12.93 16.39 12.26 1.43
Aug 2019 7.21 10.97 12.61 1.61
Jul 2019 13.53 8.85 9.65 2.19
Jun 2019 12.44 14.77 13.73 0.48
May 2019 12.86 13.05 12.60 0.76
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 31 Mar 2020


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 29 Jul 2019 17 21,791 21,068
2 05 Jul 2019 17 21,716 21,275
3 20 Jul 2019 18 21,646 20,942
4 19 Jul 2019 12 21,545 21,006
5 04 Jul 2019 18 21,423 20,956
6 21 Aug 2019 17 21,354 20,848
7 30 Jul 2019 17 21,269 20,509
8 20 Aug 2019 17 21,145 20,533
9 10 Jul 2019 18 21,083 20,510
10 07 Aug 2019 18 21,033 20,428

* This column is reflected in the demand chart above