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

Ontario Demand at 9:00 a.m. EST
16,341 MW
Market Demand at 9:00 a.m. EST
18,026 MW
Hourly Output by Fuel Type at 9:00 a.m. EST
Nuclear
9,410 MW
Hydro
4,557 MW
Gas
1,322 MW
Wind
756 MW
Solar
21 MW
Biofuel
213 MW
Hourly Ontario Energy Price at 9:00 a.m. EST
$21.06 / 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 0.95
2 3.00
3 9.72
4 11.45
5 -0.25
6 24.21
7 39.47
8 14.38
9 21.06
10 29.16
11 32.00
12 23.20
13 35.38
14 34.76
15 34.26
16 34.74
17 34.25
18 35.20
19 24.54
20 34.70
21 36.14
22 18.47
23 14.37
24 13.00

Ontario Demand (MW)

Actual    Projected

HE
1 12,742
2 12,485
3 12,401
4 12,570
5 13,128
6 14,576
7 16,256
8 16,520
9 16,341
10 16,375
11 16,244
12 16,015
13 15,954
14 15,900
15 15,960
16 16,150
17 16,400
18 16,400
19 16,874
20 17,324
21 16,755
22 15,684
23 14,513
24 13,779

Market Demand (MW)

Actual    Projected

HE
1 15,420
2 15,229
3 15,060
4 15,277
5 15,316
6 16,405
7 17,591
8 17,999
9 18,026
10 18,613
11 18,963
12 18,747
13 18,679
14 18,561
15 18,198
16 18,374
17 18,500
18 18,709
19 18,868
20 19,088
21 18,512
22 17,092
23 16,250
24 14,819
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 27 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