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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 5:00 a.m. EST
12,939 MW
Market Demand at 5:00 a.m. EST
15,501 MW
Hourly Output by Fuel Type at 4:00 a.m. EST
Nuclear
9,490 MW
Hydro
2,826 MW
Gas
458 MW
Wind
2,168 MW
Solar
0 MW
Biofuel
19 MW
Hourly Ontario Energy Price at 5:00 a.m. EST
$3.17 / MWh
Global Adjustment 1st Estimate (June)
$45.88/ MWh
Ontario Demand
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Compare With Ontario Demand
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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.

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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 10.05
2 0.00
3 0.00
4 0.00
5 14.30
6 30.17
7 28.10
8 34.19
9 39.82
10 49.00
11 40.61
12 67.34
13 92.91
14 114.09
15 118.40
16 143.76
17 178.73
18 151.49
19 143.76
20 148.34
21 148.34
22 48.25
23 38.53
24 28.01

Ontario Demand (MW)

Actual    Projected

HE
1 12,980
2 12,400
3 12,405
4 12,581
5 12,939
6 15,009
7 16,512
8 17,721
9 18,606
10 19,336
11 19,699
12 20,224
13 20,673
14 21,066
15 21,441
16 21,769
17 22,295
18 22,587
19 22,223
20 21,971
21 21,674
22 20,486
23 18,803
24 17,478

Market Demand (MW)

Actual    Projected

HE
1 15,054
2 14,400
3 14,866
4 15,159
5 15,501
6 17,514
7 18,362
8 19,137
9 19,890
10 20,335
11 20,639
12 20,974
13 22,171
14 22,431
15 22,849
16 23,218
17 23,770
18 24,077
19 23,662
20 23,346
21 23,026
22 21,228
23 19,533
24 17,856
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
Jun 2024 45.88
May 2024 45.88 79.76 77.63 28.36
Apr 2024 84.98 69.05 74.27 29.14
Mar 2024 83.66 83.10 81.71 28.88
Feb 2024 84.98 68.68 66.32 28.36
Jan 2024 54.13 50.10 45.88 43.29
Dec 2023 83.40 67.59 66.22 30.94
Nov 2023 70.40 82.88 70.90 30.42
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
Date 1st 2nd Actual Rate Avg. HOEP
Jun 2024 4.59
May 2024 4.59 7.98 7.76 2.84
Apr 2024 8.50 6.91 7.43 2.91
Mar 2024 8.37 8.31 8.17 2.89
Feb 2024 8.50 6.87 6.63 2.84
Jan 2024 5.41 5.01 4.59 4.33
Dec 2023 8.34 6.76 6.62 3.09
Nov 2023 7.04 8.29 7.09 3.04
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
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 17 Jun 2024


Rank Date Hour Ending (EST) ICI Ontario Demand* (MW) Coincident Adjusted AQEW (MWh) Status* (Initial, Prelim, Final)
1 04 Jun 2024 18 20,694 20,138 Initial
2 22 May 2024 19 20,436 19,779 Prelim
3 05 Jun 2024 17 20,396 19,734 Initial
4 13 Jun 2024 18 20,297
5 21 May 2024 17 20,229 19,559 Prelim
6 06 Jun 2024 18 18,764 18,287 Initial
7 03 Jun 2024 19 18,655 18,095 Prelim
8 23 May 2024 19 18,582 18,124 Prelim
9 24 May 2024 17 18,224 17,642 Prelim
10 14 Jun 2024 18 18,079

*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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