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

Ontario Demand at 2:00 p.m. EST
18,017 MW
Market Demand at 2:00 p.m. EST
21,118 MW
Hourly Output by Fuel Type at 2:00 p.m. EST
Nuclear
10,703 MW
Hydro
4,654 MW
Gas
1,695 MW
Wind
2,434 MW
Solar
72 MW
Biofuel
43 MW
Hourly Ontario Energy Price at 2:00 p.m. EST
$14.37 / MWh
Global Adjustment 1st Estimate (January)
$87.77/ 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.

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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 5.23
2 9.30
3 1.92
4 1.42
5 0.00
6 3.35
7 8.25
8 36.71
9 38.24
10 39.17
11 37.98
12 36.07
13 14.39
14 14.37
15 14.39
16 19.84
17 41.00
18 34.60
19 41.06
20 40.35
21 42.80
22 41.28
23 34.57
24 13.00

Ontario Demand (MW)

Actual    Projected

HE
1 15,534
2 15,093
3 14,874
4 14,804
5 14,939
6 15,551
7 16,859
8 18,321
9 18,368
10 18,374
11 18,315
12 18,507
13 18,689
14 18,017
15 18,165
16 18,412
17 19,254
18 19,632
19 19,690
20 19,543
21 19,219
22 18,515
23 17,515
24 16,448

Market Demand (MW)

Actual    Projected

HE
1 18,659
2 18,549
3 18,264
4 18,190
5 18,034
6 18,586
7 19,597
8 21,339
9 21,349
10 21,460
11 21,474
12 21,665
13 21,818
14 21,118
15 21,576
16 21,699
17 22,286
18 22,742
19 22,811
20 22,550
21 22,145
22 21,428
23 20,163
24 19,292
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
Jan 2018 87.77
Feb 2018
Mar 2018
Apr 2018
May 2018
Jun 2018
Jul 2018
Aug 2018
Sep 2018
Oct 2018
Nov 2018
Dec 2018
Date 1st 2nd Actual Rate Avg. HOEP
Jan 2018 8.78
Feb 2018
Mar 2018
Apr 2018
May 2018
Jun 2018
Jul 2018
Aug 2018
Sep 2018
Oct 2018
Nov 2018
Dec 2018
Peak Tracker

Top 10 Ontario Demand Peaks from May 1, 2017 to April 30, 2018

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

as of 18 Jan 2018


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 25 Sep 2017 17 21,786 21,171
2 26 Sep 2017 17 21,542 21,039
3 12 Jun 2017 17 21,168 20,702
4 05 Jan 2018 18 20,906
5 06 Jan 2018 18 20,768
6 19 Jul 2017 19 20,627 20,024
7 24 Sep 2017 18 20,457 19,854
8 07 Jan 2018 18 20,429
9 03 Jan 2018 18 20,380
10 06 Jul 2017 18 20,366 19,869

* This column is reflected in the demand chart above