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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 2:00 a.m. EST
16,798 MW
Market Demand at 2:00 a.m. EST
20,060 MW
Hourly Output by Fuel Type at 1:00 a.m. EST
Nuclear
9,575 MW
Hydro
3,277 MW
Gas
5,412 MW
Wind
2,477 MW
Solar
0 MW
Biofuel
67 MW
Hourly Ontario Energy Price at 2:00 a.m. EST
$52.77 / MWh
Global Adjustment 1st Estimate (January)
$83.92/ 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 65.41
2 52.77
3 88.00
4 81.88
5 90.00
6 169.81
7 226.12
8 300.44
9 267.81
10 265.50
11 225.67
12 205.61
13 227.49
14 182.13
15 186.83
16 199.00
17 221.45
18 235.39
19 202.16
20 202.16
21 186.66
22 80.05
23 63.69
24 115.00

Ontario Demand (MW)

Actual    Projected

HE
1 17,223
2 16,798
3 16,953
4 16,927
5 17,419
6 18,441
7 19,847
8 20,555
9 20,510
10 20,329
11 20,079
12 19,804
13 19,539
14 19,496
15 19,713
16 20,080
17 20,627
18 21,177
19 21,016
20 20,704
21 20,350
22 19,795
23 19,001
24 18,251

Market Demand (MW)

Actual    Projected

HE
1 20,634
2 20,060
3 20,920
4 20,981
5 21,059
6 22,076
7 23,293
8 23,816
9 23,356
10 23,277
11 23,139
12 22,479
13 22,244
14 22,097
15 22,151
16 22,600
17 23,149
18 23,873
19 23,676
20 23,480
21 23,340
22 22,637
23 21,792
24 20,902
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
Jan 2025 83.92
Dec 2024 79.28 52.77 61.77 39.42
Nov 2024 76.80 89.48 89.04 30.33
Oct 2024 81.71 64.78 74.84 33.75
Sep 2024 67.50 86.69 79.28 31.72
Aug 2024 55.52 53.75 63.23 38.71
Jul 2024 45.88 64.55 63.71 37.79
Jun 2024 45.88 74.30 78.40 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
Date 1st 2nd Actual Rate Avg. HOEP
Jan 2025 8.39
Dec 2024 7.93 5.28 6.18 3.94
Nov 2024 7.68 8.95 8.90 3.03
Oct 2024 8.17 6.48 7.48 3.38
Sep 2024 6.75 8.67 7.93 3.17
Aug 2024 5.55 5.38 6.32 3.87
Jul 2024 4.59 6.46 6.37 3.78
Jun 2024 4.59 7.43 7.84 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
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 24 Jan 2025


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 Final
2 31 Jul 2024 17 23,356 22,469 Final
3 01 Aug 2024 17 23,179 22,392 Final
4 18 Jun 2024 16 23,097 22,407 Final
5 27 Aug 2024 17 22,750 21,880 Final
6 20 Jun 2024 16 22,486 21,681 Final
7 26 Aug 2024 17 22,466 21,787 Final
8 30 Jul 2024 19 22,371 21,555 Final
9 29 Jul 2024 17 22,245 21,440 Final
10 02 Aug 2024 18 22,103 21,508 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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