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This section provides easy access to market data, including real-time and historical reports.

Ontario Demand at 12:00 p.m. EST
15,577 MW
Market Demand at 12:00 p.m. EST
17,741 MW
Hourly Output by Fuel Type at 12:00 p.m. EST
Nuclear
9,413 MW
Hydro
4,281 MW
Gas
237 MW
Wind
1,880 MW
Solar
105 MW
Biofuel
0 MW
Hourly Ontario Energy Price at 12:00 p.m. EST
$13.64 / MWh
Global Adjustment 1st Estimate (March)
$84.09 / MWh

Ontario Demand

Market Demand

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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.

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Demand Overview

Read more about Ontario’s electricity demand records, forecasts and related real-time reports.

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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 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 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 14.35
2 14.35
3 14.34
4 14.32
5 7.99
6 2.34
7 3.03
8 13.04
9 186.82
10 74.86
11 14.37
12 13.64
13 18.00
14 21.98
15 14.36
16 14.35
17 14.39
18 14.30
19 13.00
20 13.00
21 13.00
22 13.00
23 13.00
24 0.00

Ontario Demand (MW)

Actual    Projected

HE
1 13,068
2 12,780
3 12,590
4 12,558
5 12,738
6 13,365
7 14,134
8 14,851
9 15,570
10 15,765
11 15,838
12 15,577
13 15,486
14 15,122
15 14,878
16 14,971
17 15,352
18 15,487
19 15,775
20 16,043
21 15,620
22 14,922
23 14,210
24 13,589

Market Demand (MW)

Actual    Projected

HE
1 15,467
2 15,301
3 15,276
4 15,109
5 15,214
6 15,382
7 15,883
8 16,768
9 18,103
10 17,942
11 18,034
12 17,741
13 17,994
14 17,844
15 17,887
16 17,842
17 18,108
18 18,224
19 18,130
20 18,289
21 17,932
22 17,360
23 16,864
24 14,998
Recent Summaries

Daily

Monthly

Global Adjustment Rates

Global Adjustment (GA) Rates and Average Hourly Ontario Energy Price

*Preliminary values for average weighted monthly price will be available soon after month end. Values will be finalized 10 business days after month end.


Date 1st 2nd Actual Rate Avg. HOEP
Jan 2017 66.87 86.77 82.27 21.56
Feb 2017 105.59 84.30 86.39 21.11
Mar 2017 84.09
Apr 2017
May 2017
Jun 2017
Jul 2017
Aug 2017
Sep 2017
Oct 2017
Nov 2017
Dec 2017
Date 1st 2nd Actual Rate Avg. HOEP
Jan 2017 6.69 8.68 8.23 2.16
Feb 2017 10.56 8.43 8.64 2.11
Mar 2017 8.41
Apr 2017
May 2017
Jun 2017
Jul 2017
Aug 2017
Sep 2017
Oct 2017
Nov 2017
Dec 2017
Peak Tracker

Top 10 Ontario Demand Peaks from May 1, 2016 to April 30, 2017

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

as of 25 Mar 2017


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 07 Sep 2016 17 23,213 22,527
2 10 Aug 2016 18 23,100 22,637
3 11 Aug 2016 17 22,812 22,318
4 13 Jul 2016 18 22,659 22,189
5 12 Aug 2016 17 22,402 21,904
6 04 Aug 2016 17 22,312 21,868
7 06 Sep 2016 17 22,150 21,641
8 22 Jul 2016 17 22,024 21,665
9 08 Sep 2016 18 21,963 21,200
10 05 Aug 2016 13 21,926 21,408

* This column is reflected in the demand chart above