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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 5:00 p.m. EST
14,165 MW
Market Demand at 5:00 p.m. EST
17,337 MW
Hourly Output by Fuel Type at 5:00 p.m. EST
Nuclear
10,029 MW
Hydro
3,900 MW
Gas
138 MW
Wind
2,420 MW
Solar
47 MW
Biofuel
0 MW
Hourly Ontario Energy Price at 5:00 p.m. EST
$0.00 / MWh
Global Adjustment 1st Estimate (April)
$81.29/ 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 0.00
2 -0.03
3 0.00
4 0.00
5 3.12
6 1.37
7 -0.04
8 0.00
9 4.24
10 7.29
11 5.71
12 1.80
13 0.00
14 0.00
15 0.00
16 0.00
17 0.00
18 0.00
19 0.00
20 0.00
21 0.00
22 0.00
23 -0.10
24 -4.30

Ontario Demand (MW)

Actual    Projected

HE
1 11,638
2 11,342
3 11,214
4 11,222
5 11,383
6 11,834
7 12,125
8 12,846
9 13,484
10 13,771
11 14,215
12 14,451
13 14,132
14 13,859
15 13,731
16 13,937
17 14,165
18 14,302
19 14,433
20 14,533
21 14,110
22 13,454
23 12,629
24 11,978

Market Demand (MW)

Actual    Projected

HE
1 14,688
2 14,394
3 14,631
4 14,661
5 14,912
6 15,082
7 14,980
8 15,738
9 16,673
10 16,937
11 16,810
12 17,102
13 16,826
14 16,336
15 16,647
16 17,016
17 17,336
18 17,953
19 18,085
20 17,970
21 17,512
22 16,812
23 15,119
24 13,785
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
Apr 2019 81.29
Mar 2019 81.05 75.75 80.41
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
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
Date 1st 2nd Actual Rate Avg. HOEP
Apr 2019 8.13
Mar 2019 8.11 7.58 8.04
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
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
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 19 Apr 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 21 Jan 2019 18 21,525 20,829
9 15 Jul 2018 18 21,508 20,924
10 24 Jul 2018 17 21,451 20,943

* This column is reflected in the demand chart above