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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 6:00 a.m. EST
13,573 MW
Market Demand at 6:00 a.m. EST
15,346 MW
Hourly Output by Fuel Type at 5:00 a.m. EST
Nuclear
8,410 MW
Hydro
3,998 MW
Gas
990 MW
Wind
983 MW
Solar
0 MW
Biofuel
10 MW
Hourly Ontario Energy Price at 6:00 a.m. EST
$9.08 / MWh
Global Adjustment 1st Estimate (May)
$82.49/ 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 22.44
2 18.18
3 10.81
4 6.54
5 0.00
6 20.51
7 25.26
8 25.27
9 25.28
10 30.28
11 33.46
12 35.12
13 67.86
14 75.10
15 92.17
16 102.43
17 115.00
18 115.64
19 110.00
20 95.20
21 61.87
22 30.14
23 30.08
24 30.34

Ontario Demand (MW)

Actual    Projected

HE
1 13,595
2 12,938
3 12,573
4 12,524
5 12,794
6 13,573
7 15,707
8 16,070
9 16,513
10 17,058
11 17,609
12 18,170
13 18,665
14 18,986
15 19,770
16 20,096
17 20,575
18 20,816
19 20,806
20 20,385
21 19,806
22 18,267
23 16,703
24 15,392

Market Demand (MW)

Actual    Projected

HE
1 15,216
2 14,453
3 14,333
4 14,295
5 14,509
6 16,727
7 17,635
8 17,777
9 18,166
10 18,633
11 19,315
12 19,785
13 20,565
14 20,871
15 21,638
16 21,826
17 22,237
18 22,181
19 22,185
20 21,778
21 21,193
22 19,107
23 17,739
24 16,339
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 2023 82.49
Apr 2023 82.49 116.17 98.53 21.12
Mar 2023 69.89 68.64 80.31 25.21
Feb 2023 62.85 83.70 82.49 23.58
Jan 2023 31.38 51.45 53.77 34.02
Dec 2022 59.62 35.81 34.27 55.89
Nov 2022 47.39 67.19 69.89 31.96
Oct 2022 4.99 68.03 57.71 45.44
Sep 2022 40.08 27.55 32.41 61.61
Aug 2022 48.71 0.34 4.99 85.76
Jul 2022 84.75 37.04 40.08 60.58
Jun 2022 82.93 87.64 78.68 38.94
Date 1st 2nd Actual Rate Avg. HOEP
May 2023 8.25
Apr 2023 8.25 11.62 9.85 2.11
Mar 2023 6.99 6.86 8.03 2.52
Feb 2023 6.29 8.37 8.25 2.36
Jan 2023 3.14 5.15 5.38 3.40
Dec 2022 5.96 3.58 3.43 5.59
Nov 2022 4.74 6.72 6.99 3.20
Oct 2022 0.50 6.80 5.77 4.54
Sep 2022 4.01 2.76 3.24 6.16
Aug 2022 4.87 0.03 0.50 8.58
Jul 2022 8.48 3.70 4.01 6.06
Jun 2022 8.29 8.76 7.87 3.89
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 31 May 2023


Rank Date Hour Ending (EST) ICI Ontario Demand* (MW) Coincident Adjusted AQEW (MWh) Status* (Initial, Prelim, Final)
1 30 May 2023 18 19,402
2 29 May 2023 18 18,244
3 12 May 2023 17 16,714 16,308 Prelim
4 28 May 2023 19 16,547
5 02 May 2023 20 16,342 16,020 Prelim
6 11 May 2023 20 16,331 15,961 Prelim
7 03 May 2023 20 16,283 15,836 Prelim
8 23 May 2023 20 16,107 15,699 Initial
9 04 May 2023 20 16,090 15,655 Prelim
10 01 May 2023 20 15,888 15,696 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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