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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 3:00 a.m. EST
12,004 MW
Market Demand at 3:00 a.m. EST
13,388 MW
Hourly Output by Fuel Type at 3:00 a.m. EST
Nuclear
8,578 MW
Hydro
3,030 MW
Gas
1,575 MW
Wind
115 MW
Solar
0 MW
Biofuel
0 MW
Hourly Ontario Energy Price at 3:00 a.m. EST
$50.02 / MWh
Global Adjustment 1st Estimate (October)
$4.99/ 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 50.47
2 49.26
3 50.02
4 53.28
5 54.06
6 113.91
7 73.97
8 75.65
9 73.97
10 68.96
11 64.49
12 68.95
13 69.00
14 69.00
15 69.00
16 73.97
17 102.42
18 113.34
19 123.34
20 75.65
21 69.00
22 68.96
23 53.39
24 64.46

Ontario Demand (MW)

Actual    Projected

HE
1 12,347
2 12,081
3 12,004
4 12,379
5 13,466
6 14,836
7 15,440
8 15,458
9 14,964
10 14,575
11 14,455
12 14,451
13 14,448
14 14,420
15 14,533
16 14,992
17 15,586
18 16,025
19 16,373
20 16,014
21 15,309
22 14,343
23 13,370
24 12,664

Market Demand (MW)

Actual    Projected

HE
1 13,977
2 13,512
3 13,388
4 14,139
5 15,185
6 16,153
7 16,711
8 16,904
9 16,703
10 16,429
11 16,304
12 16,255
13 16,672
14 16,307
15 16,640
16 17,119
17 16,908
18 17,454
19 17,797
20 17,480
21 17,416
22 15,699
23 15,129
24 13,706
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
Oct 2022 4.99
Sep 2022 40.08 27.55
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
May 2022 59.68 86.85 84.75 33.2
Apr 2022 59.15 86.40 82.93 29.03
Mar 2022 55.00 53.86 59.41 38.24
Feb 2022 50.19 53.25 52.46 40.83
Jan 2022 48.29 45.14 43.53 44.25
Dec 2021 49.02 54.15 59.68 35.56
Nov 2021 57.30 52.62 54.17 40.44
Date 1st 2nd Actual Rate Avg. HOEP
Oct 2022 0.50
Sep 2022 4.01 2.76
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
May 2022 5.97 8.69 8.48 3.32
Apr 2022 5.92 8.64 8.29 2.90
Mar 2022 5.50 5.39 5.94 3.82
Feb 2022 5.02 5.33 5.25 4.08
Jan 2022 4.83 4.51 4.35 4.43
Dec 2021 4.90 5.42 5.97 3.56
Nov 2021 5.73 5.26 5.42 4.04
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 4 Oct 2022


Rank Date Hour Ending (EST) ICI Ontario Demand* (MW) Coincident Adjusted AQEW (MWh) Status* (Initial, Prelim, Final)
1 19 Jul 2022 18 22,607 22,127 Final
2 22 Jun 2022 17 21,954 21,340 Final
3 29 Aug 2022 17 21,871 21,170 Final
4 20 Jul 2022 16 21,850 21,394 Final
5 07 Aug 2022 17 21,778 21,073 Final
6 06 Aug 2022 18 21,761 21,153 Final
7 08 Aug 2022 15 21,560 20,901 Final
8 16 Jun 2022 17 21,500 20,778 Final
9 23 Jul 2022 17 21,423 20,691 Final
10 21 Jul 2022 17 21,379 20,896 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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