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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
14,795 MW
Market Demand at 3:00 a.m. EST
17,353 MW
Hourly Output by Fuel Type at 3:00 a.m. EST
Nuclear
9,191 MW
Hydro
4,048 MW
Gas
2,114 MW
Wind
2,062 MW
Solar
0 MW
Biofuel
11 MW
Hourly Ontario Energy Price at 3:00 a.m. EST
$23.90 / MWh
Global Adjustment 1st Estimate (December)
$83.40/ 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.

The Market Day

HOEP ($/MWh)

Dispatch    Pre-Dispatch

HE
1 27.39
2 29.61
3 23.90
4 25.17
5 30.20
6 34.73
7 36.71
8 40.60
9 40.50
10 41.80
11 40.60
12 41.80
13 40.60
14 39.85
15 41.20
16 45.96
17 66.15
18 109.76
19 90.69
20 68.79
21 52.11
22 41.81
23 36.83
24 40.65

Ontario Demand (MW)

Actual    Projected

HE
1 15,300
2 14,961
3 14,795
4 14,962
5 15,180
6 16,355
7 17,554
8 18,127
9 18,610
10 18,553
11 18,430
12 18,337
13 18,254
14 18,221
15 18,272
16 18,759
17 19,215
18 19,748
19 19,525
20 19,235
21 18,759
22 18,090
23 17,121
24 16,176

Market Demand (MW)

Actual    Projected

HE
1 17,505
2 17,284
3 17,353
4 18,064
5 18,297
6 19,571
7 21,477
8 21,880
9 21,774
10 21,667
11 21,156
12 20,923
13 20,855
14 20,577
15 20,608
16 20,738
17 21,221
18 21,852
19 21,498
20 21,129
21 20,646
22 20,404
23 19,380
24 18,424
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.

This table does not include the GA deferral recovery amounts for 2021. More information on the 2021 GA estimates and actual recovery rates are on the Class B GA and GA components and costs web pages.


Date 1st 2nd Actual Rate Avg. HOEP
Dec 2023 83.40
Nov 2023 70.40 82.88
Oct 2023 73.32 84.33 84.98 31.38
Sep 2023 58.37 74.54 50.93 39.57
Aug 2023 53.77 51.54 76.06 31.36
Jul 2023 99.62 51.05 49.49 40.42
Jun 2023 98.53 89.72 82.93 30.33
May 2023 82.49 93.84 99.62 17.49
Apr 2023 82.49 116.17 98.53 21.12
Mar 2023 69.89 68.64 80.31 25.21
Feb 2023 62.85 83.70 82.49 23.58
Jan 2023 31.38 51.45 53.77 34.02
Date 1st 2nd Actual Rate Avg. HOEP
Dec 2023 8.34
Nov 2023 7.04 8.29
Oct 2023 7.33 8.43 8.50 3.14
Sep 2023 5.84 7.45 5.09 3.96
Aug 2023 5.38 5.15 7.61 3.14
Jul 2023 9.96 5.11 4.95 4.04
Jun 2023 9.85 8.97 8.29 3.03
May 2023 8.25 9.38 9.96 1.75
Apr 2023 8.25 11.62 9.85 2.11
Mar 2023 6.99 6.86 8.03 2.52
Feb 2023 6.29 8.37 8.25 2.36
Jan 2023 3.14 5.15 5.38 3.40
ICI Ontario Demand Peak Tracker

Top 10 peak hours and ICI Ontario demand values with coincident adjusted AQEW values to date

Real-time snapshot of the top 10 peak hours and ICI Ontario demand values with coincident adjusted AQEW values for the current base period. This information can be used by ICI customers to track ICI Ontario demand peaks and estimate their GA allocation for the peak hour.

Peak Tracker

as of 7 Dec 2023


Rank Date Hour Ending (EST) ICI Ontario Demand* (MW) Coincident Adjusted AQEW (MWh) Status* (Initial, Prelim, Final)
1 05 Sep 2023 17 23,713 22,876 Final
2 06 Sep 2023 17 22,966 22,040 Final
3 05 Jul 2023 18 22,686 22,006 Final
4 06 Jul 2023 12 21,882 21,249 Final
5 04 Sep 2023 18 21,725 21,234 Final
6 04 Jul 2023 17 21,690 21,206 Final
7 27 Jul 2023 18 21,558 20,934 Final
8 28 Jul 2023 17 21,551 20,781 Final
9 02 Jun 2023 17 21,463 20,985 Final
10 03 Aug 2023 17 21,364 20,785 Final

*ICI Ontario Demand Status: Initial peak values are published in orange approx. 1 hour following the end of the trade hour. Final peak values are published in black by the end of 3 business days following initial publication. *Coincident Adjusted AQEW Status: Initial data is published 7 calendar days after the trade date. Preliminary data is published 10 business days after the trade date. Final data is published 20 business days after the trade date. A blank column indicates adjusted AQEW values are not yet available.

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