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Power Data

Power Data

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

This Hour's Data
Ontario Demand at 4:00 a.m. EST
15,132 MW
Market Demand at 4:00 a.m. EST
17,064 MW
Hourly Output by Fuel Type at 4:00 a.m. EST
Nuclear
10,207 MW
Hydro
3,394 MW
Gas
1,207 MW
Wind
1,703 MW
Solar
0 MW
Biofuel
47 MW
Hourly Ontario Energy Price at 4:00 a.m. EST
$36.80 / MWh
Global Adjustment 1st Estimate (January)
$48.29/ MWh
Ontario Demand
Market Demand
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Compare With Ontario Demand
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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 14.83
2 24.46
3 25.56
4 36.80
5 49.27
6 45.18
7 40.89
8 37.30
9 39.10
10 39.07
11 40.99
12 41.00
13 41.00
14 41.00
15 41.00
16 41.71
17 44.35
18 107.55
19 57.84
20 45.10
21 42.13
22 44.35
23 41.68
24 102.68

Price Today

Ontario Demand (MW)

Actual    Projected

HE
1 15,565
2 15,389
3 15,263
4 15,132
5 15,029
6 15,247
7 15,607
8 16,150
9 16,649
10 17,055
11 17,157
12 17,207
13 17,252
14 17,366
15 17,616
16 18,576
17 19,583
18 20,139
19 19,974
20 19,560
21 19,148
22 18,600
23 17,870
24 17,230

Ontario Demand Today

Market Demand (MW)

Actual    Projected

HE
1 17,902
2 17,363
3 16,763
4 17,064
5 17,873
6 18,206
7 18,283
8 18,602
9 19,225
10 20,240
11 20,419
12 20,594
13 20,541
14 20,625
15 20,879
16 21,800
17 22,786
18 23,052
19 23,054
20 22,814
21 22,462
22 21,898
23 20,778
24 19,556

Ontario Market Today

Recent Summaries

Daily

Monthly

Daily Market Summaries

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 2022 48.29
Dec 2021 49.02 54.15 59.68 35.56
Nov 2021 57.30 52.62 54.17 40.44
Oct 2021 66.43 61.86 52.44 39.95
Sep 2021 50.42 65.82 75.65 30.68
Aug 2021 81.37 48.29 45.99 43.39
Jul 2021 71.62 72.84 73.60 27.58
Jun 2021 107.90 89.33 86.32 26.89
May 2021 98.51 100.66 100.54 14.63
Apr 2021 61.39 118.88 109.34 8.93
Mar 2021 79.39 91.80 90.80 17.62
Feb 2021 98.51 37.12 50.42 33.77
Date 1st 2nd Actual Rate Avg. HOEP
Jan 2022 4.83
Dec 2021 4.90 5.42 5.97 3.56
Nov 2021 5.73 5.26 5.42 4.04
Oct 2021 6.64 6.19 5.24 4.00
Sep 2021 5.04 6.58 7.57 3.07
Aug 2021 8.14 4.83 4.60 4.34
Jul 2021 7.16 7.28 7.36 2.76
Jun 2021 10.79 8.93 8.63 2.69
May 2021 9.85 10.07 10.05 1.46
Apr 2021 6.14 11.89 10.93 0.89
Mar 2021 7.94 9.18 9.08 1.76
Feb 2021 9.85 3.71 5.04 3.38

Price Overview

Peak Tracker

Top 10 Ontario demand peaks with coincident adjusted AQEW values to date

Real-time snapshot of the highest Ontario demand values with coincident adjusted AQEW values for the current base period that can be used to track potential ICI peak hours. The status column indicates whether the coincident adjusted AQEW value is Initial, Preliminary or Final.

as of 23 Jan 2022

Rank Date Hour Ending (EST) Ontario Demand (MW) Coincident Adjusted AQEW (MWh) *Status (Initial, Prelim, Final)
1 24 Aug 2021 17 22,986 22,428 Final
2 26 Aug 2021 15 22,740 22,358 Final
3 09 Aug 2021 17 22,428 21,813 Final
4 25 Aug 2021 17 22,360 21,719 Final
5 23 Aug 2021 17 22,309 22,055 Final
6 28 Jun 2021 18 22,258 21,678 Final
7 11 Aug 2021 17 22,042 21,516 Final
8 29 Aug 2021 17 21,930 21,415 Final
9 19 Aug 2021 17 21,788 21,382 Final
10 12 Aug 2021 18 21,734 21,240 Final

*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.

Peak Tracker

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