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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 a.m. EST
17,991 MW
Market Demand at 10:00 a.m. EST
20,305 MW
Hourly Output by Fuel Type at 10:00 a.m. EST
Nuclear
11,255 MW
Hydro
4,553 MW
Gas
404 MW
Wind
2,836 MW
Solar
36 MW
Biofuel
26 MW
Hourly Ontario Energy Price at 10:00 a.m. EST
$22.61 / MWh
Global Adjustment 1st Estimate (January)
$67.41/ 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.

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Supply Icon

Supply Overview

Get current and historical data for Ontario's transmission and distribution level supply and yearly import/export data.

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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 Icon

Conservation Overview

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

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The Market Day

HOEP ($/MWh)

Dispatch    Pre-Dispatch

HE
1 0.00
2 0.00
3 0.00
4 0.00
5 0.00
6 0.10
7 3.94
8 36.70
9 19.16
10 22.61
11 31.86
12 31.86
13 31.86
14 31.86
15 31.86
16 33.45
17 36.18
18 37.59
19 38.79
20 38.74
21 40.73
22 38.50
23 39.23
24 38.85

Ontario Demand (MW)

Actual    Projected

HE
1 14,878
2 14,649
3 14,542
4 14,451
5 14,553
6 15,166
7 16,164
8 17,677
9 17,990
10 17,991
11 17,980
12 17,910
13 17,860
14 17,881
15 17,912
16 18,532
17 19,409
18 19,969
19 20,106
20 19,978
21 19,658
22 18,992
23 17,922
24 16,770

Market Demand (MW)

Actual    Projected

HE
1 17,514
2 17,273
3 17,444
4 17,345
5 17,481
6 17,643
7 18,653
8 20,462
9 20,448
10 20,305
11 20,317
12 20,266
13 20,058
14 20,032
15 20,171
16 20,765
17 21,584
18 22,309
19 22,667
20 22,458
21 22,143
22 21,368
23 20,243
24 18,683
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
Jan 2019 67.41
Dec 2018 91.98 70.67 74.04 27.89
Nov 2018 122.35 105.40 98.55 25.14
Oct 2018 89.21 119.98 120.59 13.84
Sep 2018 84.24 86.60 85.84 29.94
Aug 2018 77.90 73.24 74.90 30.59
Jul 2018 85.02 81.23 77.37 30.38
Jun 2018 133.36 102.39 118.96 18.34
May 2018 93.92 131.99 107.93 13.12
Apr 2018 98.10 100.74 99.59 29.66
Mar 2018 78.77 85.95 94.81 17.2
Feb 2018 73.33 77.05 81.67 19.01
Date 1st 2nd Actual Rate Avg. HOEP
Jan 2019 6.74
Dec 2018 9.20 7.07 7.40 2.79
Nov 2018 12.24 10.54 9.86 2.51
Oct 2018 8.92 12.00 12.06 1.38
Sep 2018 8.42 8.66 8.58 2.99
Aug 2018 7.79 7.32 7.49 3.06
Jul 2018 8.50 8.12 7.74 3.04
Jun 2018 13.34 10.24 11.90 1.83
May 2018 9.39 13.20 10.79 1.31
Apr 2018 9.81 10.07 9.96 2.97
Mar 2018 7.88 8.60 9.48 1.72
Feb 2018 7.33 7.71 8.17 1.90
Peak Tracker

Top 10 Ontario Demand Peaks from May 1, 2018 to April 30, 2019

New Ontario demand records are updated in real time. Verified Ontario demand values (AQEW) published 20 business days later.

as of 16 Jan 2019


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 05 Sep 2018 18 23,240 22,399
2 05 Jul 2018 16 23,046 22,377
3 04 Jul 2018 19 22,518 22,017
4 28 Aug 2018 17 21,990 21,644
5 04 Sep 2018 17 21,885 21,379
6 03 Jul 2018 19 21,761 21,291
7 16 Jul 2018 12 21,536 20,954
8 15 Jul 2018 18 21,508 20,924
9 24 Jul 2018 17 21,451 20,943
10 09 Jul 2018 18 21,412 20,808

* This column is reflected in the demand chart above