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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 4:00 a.m. EST
13,074 MW
Market Demand at 4:00 a.m. EST
16,256 MW
Hourly Output by Fuel Type at 4:00 a.m. EST
Nuclear
9,903 MW
Hydro
3,140 MW
Gas
261 MW
Wind
2,664 MW
Solar
0 MW
Biofuel
22 MW
Hourly Ontario Energy Price at 4:00 a.m. EST
$2.04 / 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.

Learn more >
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 3.48
2 14.31
3 13.63
4 2.04
5 16.00
6 21.00
7 41.90
8 21.00
9 21.00
10 16.00
11 16.00
12 35.00
13 35.00
14 35.00
15 35.00
16 38.31
17 40.13
18 41.27
19 41.11
20 41.34
21 40.15
22 40.14
23 38.65
24 36.00

Ontario Demand (MW)

Actual    Projected

HE
1 13,623
2 13,232
3 13,218
4 13,074
5 13,822
6 14,836
7 16,202
8 17,046
9 17,330
10 17,221
11 17,170
12 17,178
13 17,156
14 17,233
15 17,301
16 18,169
17 19,110
18 19,601
19 19,444
20 19,256
21 18,875
22 18,133
23 16,947
24 15,659

Market Demand (MW)

Actual    Projected

HE
1 15,930
2 16,075
3 16,359
4 16,256
5 17,045
6 17,465
7 18,807
8 19,407
9 19,450
10 19,587
11 19,665
12 19,313
13 19,081
14 19,160
15 19,275
16 20,145
17 21,229
18 21,793
19 21,737
20 21,412
21 21,138
22 20,178
23 18,865
24 17,533
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
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
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 17 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