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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 p.m. EST
21,100 MW
Market Demand at 5:00 p.m. EST
22,083 MW
Hourly Output by Fuel Type at 5:00 p.m. EST
Nuclear
9,330 MW
Hydro
5,029 MW
Gas
5,245 MW
Wind
269 MW
Solar
210 MW
Biofuel
31 MW
Hourly Ontario Energy Price at 5:00 p.m. EST
$46.65 / MWh
Global Adjustment 1st Estimate (July)
$45.88/ 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 29.59
2 28.83
3 27.09
4 30.25
5 25.44
6 16.89
7 21.64
8 27.89
9 31.61
10 38.79
11 36.58
12 40.40
13 40.72
14 38.31
15 36.85
16 36.90
17 46.65
18 86.99
19 56.68
20 54.12
21 53.00
22 49.19
23 42.38
24 29.79

Ontario Demand (MW)

Actual    Projected

HE
1 15,138
2 14,510
3 14,001
4 13,668
5 13,619
6 13,599
7 14,120
8 15,182
9 16,632
10 17,873
11 18,566
12 19,024
13 19,375
14 19,740
15 20,088
16 20,600
17 21,100
18 21,485
19 21,245
20 20,587
21 19,953
22 18,941
23 17,634
24 16,443

Market Demand (MW)

Actual    Projected

HE
1 17,626
2 17,199
3 16,579
4 16,238
5 16,238
6 15,996
7 16,160
8 17,208
9 18,419
10 19,410
11 20,028
12 20,095
13 20,551
14 21,102
15 21,378
16 21,797
17 22,083
18 22,952
19 22,480
20 21,838
21 21,171
22 19,813
23 19,032
24 18,518
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
Jul 2024 45.88
Jun 2024 45.88 74.30 31.39
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
Date 1st 2nd Actual Rate Avg. HOEP
Jul 2024 4.59
Jun 2024 4.59 7.43 3.14
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
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 13 Jul 2024


Rank Date Hour Ending (EST) ICI Ontario Demand* (MW) Coincident Adjusted AQEW (MWh) Status* (Initial, Prelim, Final)
1 19 Jun 2024 17 23,852 23,074 Prelim
2 18 Jun 2024 16 23,097 22,407 Prelim
3 20 Jun 2024 16 22,486 21,681 Prelim
4 08 Jul 2024 19 22,026
5 09 Jul 2024 17 21,836
6 17 Jun 2024 19 21,648 21,037 Prelim
7 03 Jul 2024 17 21,468 20,735 Initial
8 05 Jul 2024 13 21,360 21,018 Initial
9 04 Jul 2024 14 21,301 20,875 Initial
10 12 Jul 2024 17 21,172

*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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