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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 10:00 p.m. EST
17,251 MW
Market Demand at 10:00 p.m. EST
19,445 MW
Hourly Output by Fuel Type at 10:00 p.m. EST
Nuclear
9,198 MW
Hydro
4,859 MW
Gas
2,751 MW
Wind
1,151 MW
Solar
0 MW
Biofuel
27 MW
Hourly Ontario Energy Price at 10:00 p.m. EST
$16.33 / MWh
Global Adjustment 1st Estimate (May)
$92.93/ MWh
Ontario Demand
Market Demand
Compare With
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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.

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Conservation Overview

Learn about the progress made by Ontario's electricity conservation and demand response programs.

The Market Day

HOEP ($/MWh)

Dispatch    Pre-Dispatch

HE
1 14.27
2 9.20
3 4.72
4 0.41
5 0.00
6 1.99
7 15.59
8 19.47
9 18.16
10 19.68
11 20.14
12 21.12
13 20.98
14 19.83
15 20.16
16 19.54
17 21.09
18 20.11
19 18.01
20 16.71
21 17.06
22 16.33
23 17.84
24 17.57

Ontario Demand (MW)

Actual    Projected

HE
1 14,319
2 13,516
3 12,794
4 12,518
5 12,623
6 13,159
7 14,856
8 16,248
9 17,125
10 17,783
11 18,294
12 18,683
13 18,851
14 19,090
15 19,137
16 19,444
17 19,809
18 19,887
19 19,765
20 19,028
21 18,456
22 17,251
23 16,298
24 14,808

Market Demand (MW)

Actual    Projected

HE
1 16,635
2 16,176
3 15,680
4 15,682
5 15,679
6 16,031
7 17,518
8 18,604
9 19,278
10 19,663
11 20,186
12 20,665
13 20,584
14 20,811
15 20,988
16 21,029
17 21,155
18 21,418
19 21,184
20 20,623
21 20,363
22 19,445
23 19,087
24 17,413
Recent Summaries

Daily

Monthly

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.


Date 1st 2nd Actual Rate Avg. HOEP
May 2020 92.93
Apr 2020 137.07 115.00 115.00 6.05
Mar 2020 104.32 112.12 119.42 13.93
Feb 2020 124.51 114.35 113.31 14.52
Jan 2020 83.23 99.93 102.32 14.82
Dec 2019 85.69 90.66 93.21 21.91
Nov 2019 107.27 101.09 99.53 20.71
Oct 2019 178.78 118.86 136.80 7.25
Sep 2019 129.34 163.92 122.63 14.34
Aug 2019 72.11 109.74 126.07 16.13
Jul 2019 135.27 88.54 96.45 21.91
Jun 2019 124.44 147.72 137.28 4.83
Date 1st 2nd Actual Rate Avg. HOEP
May 2020 9.29
Apr 2020 13.71 11.50 11.50 0.61
Mar 2020 10.43 11.21 11.94 1.39
Feb 2020 12.45 11.44 11.33 1.45
Jan 2020 8.32 9.99 10.23 1.48
Dec 2019 8.57 9.07 9.32 2.19
Nov 2019 10.73 10.11 9.95 2.07
Oct 2019 17.88 11.89 13.68 0.73
Sep 2019 12.93 16.39 12.26 1.43
Aug 2019 7.21 10.97 12.61 1.61
Jul 2019 13.53 8.85 9.65 2.19
Jun 2019 12.44 14.77 13.73 0.48
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 27 May 2020


Rank Date Hour Ending (EST) Ontario Demand (MW) Coincident Adjusted AQEW (MWh) *Status (Initial, Prelim, Final)
1 26 May 2020 17 20,649
2 27 May 2020 18 19,887
3 25 May 2020 17 19,426
4 24 May 2020 18 15,586
5 14 May 2020 17 15,156 14,552 Initial
6 22 May 2020 19 14,649
7 08 May 2020 21 14,589 14,352 Prelim
8 11 May 2020 21 14,577 14,283 Prelim
9 12 May 2020 21 14,504 14,326 Prelim
10 15 May 2020 13 14,474 13,998 Initial

*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.