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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 8:00 a.m. EST
16,606 MW
Market Demand at 8:00 a.m. EST
18,560 MW
Hourly Output by Fuel Type at 8:00 a.m. EST
Nuclear
7,376 MW
Hydro
5,704 MW
Gas
2,933 MW
Wind
596 MW
Solar
108 MW
Biofuel
0 MW
Hourly Ontario Energy Price at 8:00 a.m. EST
$33.86 / MWh
Global Adjustment 1st Estimate (May)
$45.88/ MWh
Ontario Demand
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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 17.42
2 10.19
3 6.58
4 7.41
5 14.37
6 25.67
7 30.86
8 33.86
9 40.00
10 43.00
11 43.00
12 41.63
13 43.00
14 43.00
15 43.41
16 43.41
17 51.00
18 51.00
19 51.00
20 51.00
21 43.41
22 30.91
23 30.80
24 22.42

Ontario Demand (MW)

Actual    Projected

HE
1 14,226
2 13,718
3 13,390
4 13,388
5 13,462
6 14,260
7 15,694
8 16,606
9 17,538
10 18,005
11 18,369
12 18,711
13 19,026
14 19,253
15 19,511
16 19,750
17 19,943
18 19,968
19 19,877
20 19,479
21 18,868
22 17,695
23 16,313
24 15,032

Market Demand (MW)

Actual    Projected

HE
1 16,079
2 15,642
3 15,654
4 15,765
5 16,095
6 16,819
7 17,957
8 18,560
9 19,642
10 19,711
11 20,090
12 20,094
13 20,516
14 20,951
15 21,313
16 21,597
17 21,797
18 21,669
19 21,399
20 21,319
21 20,309
22 19,101
23 17,433
24 15,476
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
May 2024 45.88
Apr 2024 84.98 69.05 74.27
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
Jun 2023 98.53 89.72 82.93 30.33
Date 1st 2nd Actual Rate Avg. HOEP
May 2024 4.59
Apr 2024 8.50 6.91 7.43
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
Jun 2023 9.85 8.97 8.29 3.03
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 22 May 2024


Rank Date Hour Ending (EST) ICI Ontario Demand* (MW) Coincident Adjusted AQEW (MWh) Status* (Initial, Prelim, Final)
1 21 May 2024 17 20,229
2 20 May 2024 17 17,909
3 22 May 2024 8 16,606
4 16 May 2024 19 16,595
5 19 May 2024 18 16,439
6 17 May 2024 20 16,340
7 15 May 2024 20 16,339 15,744 Initial
8 14 May 2024 17 16,278 15,522 Initial
9 13 May 2024 20 15,980 15,544 Initial
10 08 May 2024 20 15,921 15,519 Initial

*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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