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

Ontario Demand at 6:00 p.m. EST
18,178 MW
Market Demand at 6:00 p.m. EST
20,518 MW
Hourly Output by Fuel Type at 5:00 p.m. EST
Nuclear
10,935 MW
Hydro
5,524 MW
Gas
1,174 MW
Wind
672 MW
Solar
160 MW
Biofuel
150 MW
Hourly Ontario Energy Price at 6:00 p.m. EST
$50.98 / MWh
Global Adjustment 1st Estimate (August)
$115/ 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 -1.84
2 -3.93
3 -3.94
4 -4.04
5 -4.08
6 -4.00
7 -4.10
8 -2.85
9 7.01
10 -0.11
11 8.74
12 9.58
13 13.33
14 10.84
15 5.25
16 19.79
17 27.78
18 19.17
19 24.77
20 25.91
21 14.39
22 13.01
23 13.01
24 13.01

Ontario Demand (MW)

Actual    Projected

HE
1 12,074
2 11,590
3 11,302
4 11,203
5 11,239
6 11,260
7 11,640
8 12,423
9 13,233
10 13,759
11 14,335
12 14,825
13 15,314
14 15,849
15 16,300
16 17,086
17 17,862
18 17,351
19 18,013
20 17,582
21 17,394
22 16,438
23 15,073
24 13,850

Market Demand (MW)

Actual    Projected

HE
1 14,778
2 14,399
3 14,289
4 14,270
5 14,243
6 14,398
7 14,434
8 14,866
9 15,887
10 16,341
11 16,990
12 17,478
13 17,949
14 18,429
15 18,954
16 19,647
17 20,462
18 19,778
19 20,247
20 20,341
21 19,865
22 18,537
23 17,403
24 16,274
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 2017 66.87 86.77 82.27 21.56
Feb 2017 105.59 84.30 86.39 21.11
Mar 2017 84.09 68.86 71.35 26.03
Apr 2017 68.74 102.18 107.78 11.14
May 2017 106.23 127.76 123.07 3.17
Jun 2017 119.54 125.63 118.48 5.89
Jul 2017 106.52 101.97 112.80 13.61
Aug 2017 115.00
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 6.89 7.14 2.60
Apr 2017 6.87 10.22 10.78 1.11
May 2017 10.62 12.78 12.31 0.32
Jun 2017 11.95 12.56 11.85 0.59
Jul 2017 10.65 10.20 11.28 1.36
Aug 2017 11.50
Sep 2017
Oct 2017
Nov 2017
Dec 2017
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 20 Aug 2017


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 12 Jun 2017 17 21,168 20,702
2 19 Jul 2017 19 20,627 20,024
3 06 Jul 2017 18 20,366 19,869
4 11 Jul 2017 18 20,302 19,691
5 21 Jul 2017 17 20,192 19,730
6 31 Jul 2017 17 20,096
7 01 Aug 2017 14 20,079
8 18 Jul 2017 19 20,071 19,562
9 02 Aug 2017 16 20,070
10 07 Jul 2017 17 19,911 19,415

* This column is reflected in the demand chart above