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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 3:00 p.m. EST
15,101 MW
Market Demand at 3:00 p.m. EST
16,668 MW
Hourly Output by Fuel Type at 2:00 p.m. EST
Nuclear
9,094 MW
Hydro
4,025 MW
Gas
2,245 MW
Wind
483 MW
Solar
340 MW
Biofuel
56 MW
Hourly Ontario Energy Price at 3:00 p.m. EST
$16.99 / MWh
Global Adjustment 1st Estimate (November)
$107.27/ 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.

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.

Conservation Icon

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 31.65
2 28.37
3 13.36
4 21.16
5 14.91
6 13.36
7 27.64
8 13.37
9 26.39
10 27.55
11 27.64
12 27.21
13 23.24
14 21.43
15 22.51
16 27.72
17 30.43
18 35.00
19 33.00
20 30.08
21 30.43
22 28.96
23 28.90
24 27.91

Ontario Demand (MW)

Actual    Projected

HE
1 14,384
2 13,886
3 13,673
4 13,585
5 13,589
6 13,718
7 14,119
8 14,676
9 15,032
10 15,080
11 15,099
12 15,068
13 15,048
14 14,879
15 15,753
16 16,547
17 17,702
18 18,249
19 17,961
20 17,544
21 17,080
22 16,370
23 15,585
24 14,792

Market Demand (MW)

Actual    Projected

HE
1 16,842
2 16,360
3 16,349
4 16,150
5 16,083
6 16,257
7 16,367
8 16,647
9 17,109
10 16,794
11 16,995
12 16,804
13 16,788
14 16,917
15 17,638
16 18,303
17 18,977
18 19,697
19 19,654
20 19,282
21 19,246
22 18,440
23 17,439
24 16,583
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
Nov 2019 107.27
Oct 2019 178.78 118.86 136.80
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
May 2019 128.60 130.49 126.04 7.58
Apr 2019 81.29 124.88 123.33 15.57
Mar 2019 81.05 75.75 80.41 27.34
Feb 2019 96.57 82.36 88.12 27.89
Jan 2019 67.41 83.06 80.92 27.82
Dec 2018 91.98 70.67 74.04 27.89
Date 1st 2nd Actual Rate Avg. HOEP
Nov 2019 10.73
Oct 2019 17.88 11.89 13.68
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
May 2019 12.86 13.05 12.60 0.76
Apr 2019 8.13 12.49 12.33 1.56
Mar 2019 8.11 7.58 8.04 2.73
Feb 2019 9.66 8.24 8.81 2.79
Jan 2019 6.74 8.31 8.09 2.78
Dec 2018 9.20 7.07 7.40 2.79
Peak Tracker

Top 10 Ontario Demand Peaks from May 1, 2019 to April 30, 2020

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

as of 17 Nov 2019


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 29 Jul 2019 17 21,791 21,068
2 05 Jul 2019 17 21,716 21,275
3 20 Jul 2019 18 21,646 20,942
4 19 Jul 2019 12 21,545 21,006
5 04 Jul 2019 18 21,423 20,956
6 21 Aug 2019 17 21,354 20,848
7 30 Jul 2019 17 21,269 20,509
8 20 Aug 2019 17 21,145 20,533
9 10 Jul 2019 18 21,083 20,510
10 07 Aug 2019 18 21,033 20,428

* This column is reflected in the demand chart above