Skip Links
Power Data

Power Data

This section provides easy access to market data, including real-time and historical reports.

Ontario Demand at 4:00 p.m. EST
15,930 MW
Market Demand at 4:00 p.m. EST
20,019 MW
Hourly Output by Fuel Type at 3:00 p.m. EST
Nuclear
9,098 MW
Hydro
5,390 MW
Gas
950 MW
Wind
3,980 MW
Solar
155 MW
Biofuel
0 MW
Hourly Ontario Energy Price at 4:00 p.m. EST
$36.90 / MWh
Global Adjustment 1st Estimate (April)
$3.00/ 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 0.00
2 0.00
3 0.00
4 0.00
5 0.95
6 4.71
7 22.39
8 34.50
9 33.24
10 15.37
11 5.80
12 14.43
13 28.89
14 36.17
15 36.32
16 33.45
17 21.30
18 33.47
19 40.84
20 45.50
21 40.00
22 14.39
23 0.00
24 0.00

Ontario Demand (MW)

Actual    Projected

HE
1 12,464
2 12,287
3 12,230
4 12,380
5 12,823
6 13,714
7 14,566
8 15,269
9 15,706
10 15,818
11 15,849
12 15,985
13 15,945
14 15,964
15 15,779
16 15,930
17 16,059
18 16,273
19 16,435
20 16,574
21 16,293
22 15,514
23 14,493
24 13,633

Market Demand (MW)

Actual    Projected

HE
1 16,541
2 15,950
3 16,274
4 16,400
5 16,815
6 17,611
7 18,219
8 18,523
9 18,907
10 18,775
11 18,504
12 18,992
13 19,047
14 19,352
15 19,654
16 20,019
17 20,437
18 20,589
19 21,067
20 21,198
21 20,996
22 19,198
23 17,443
24 16,267
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
Apr 2025 3.00
Mar 2025 41.09 61.20 69.48 48.92
Feb 2025 89.04 0.18 3.00 78.41
Jan 2025 83.92 45.78 41.09 68.28
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
Date 1st 2nd Actual Rate Avg. HOEP
Apr 2025 0.30
Mar 2025 4.11 6.12 6.95 4.89
Feb 2025 8.90 0.02 0.30 7.84
Jan 2025 8.39 4.58 4.11 6.83
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
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 21 Apr 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.

XML