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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 12:00 p.m. EST
15,649 MW
Market Demand at 12:00 p.m. EST
17,166 MW
Hourly Output by Fuel Type at 12:00 p.m. EST
Nuclear
9,863 MW
Hydro
4,855 MW
Gas
935 MW
Wind
431 MW
Solar
131 MW
Biofuel
0 MW
Hourly Ontario Energy Price at 12:00 p.m. EST
$13.65 / MWh
Global Adjustment 1st Estimate (December)
$91.98/ 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 14.37
2 16.94
3 14.34
4 60.07
5 14.38
6 13.62
7 12.25
8 17.39
9 52.39
10 43.65
11 14.55
12 13.65
13 29.84
14 35.00
15 39.96
16 40.01
17 41.64
18 41.00
19 42.00
20 40.11
21 40.10
22 37.60
23 36.00
24 14.38

Price Today

Ontario Demand (MW)

Actual    Projected

HE
1 13,762
2 13,329
3 13,088
4 13,240
5 13,157
6 13,133
7 13,592
8 14,389
9 15,123
10 15,564
11 15,664
12 15,649
13 15,675
14 15,565
15 15,600
16 16,584
17 17,572
18 18,075
19 17,879
20 17,392
21 16,986
22 16,407
23 15,603
24 14,740

Ontario Demand Today

Market Demand (MW)

Actual    Projected

HE
1 16,061
2 15,910
3 15,721
4 16,155
5 15,732
6 15,226
7 15,480
8 16,241
9 16,939
10 17,266
11 17,184
12 17,166
13 17,555
14 17,717
15 17,962
16 18,495
17 18,873
18 19,455
19 19,872
20 19,549
21 18,968
22 18,157
23 17,207
24 16,585

Ontario Market Today

Recent Summaries

Daily

13 Dec 2018

Weekly

05 Dec - 11 Dec 2018

Monthly

Oct 2018

Market Summaries Archive

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
Dec 2018 91.98
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
Jan 2018 87.77 63.70 67.36 32.12
Date 1st 2nd Actual Rate Avg. HOEP
Dec 2018 9.20
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
Jan 2018 8.78 6.37 6.74 3.21

Price Overview

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 Dec 2018

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

Peak Tracker for Global Adjustment Class A

XML