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

Ontario Demand at 5:00 a.m. EST
13,119 MW
Market Demand at 5:00 a.m. EST
15,464 MW
Hourly Output by Fuel Type at 4:00 a.m. EST
Nuclear
10,480 MW
Hydro
3,485 MW
Gas
283 MW
Wind
1,055 MW
Solar
0 MW
Biofuel
14 MW
Hourly Ontario Energy Price at 5:00 a.m. EST
($0.81) / MWh
Global Adjustment 1st Estimate (June)
$119.54/ MWh

Ontario Demand

Market Demand

Compare With

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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.

Learn more >
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 -1.53
2 -2.76
3 -1.83
4 -0.53
5 0.00
6 3.00
7 13.00
8 13.01
9 13.01
10 13.02
11 13.02
12 13.01
13 13.02
14 13.02
15 14.34
16 16.57
17 14.35
18 14.33
19 13.02
20 13.02
21 13.33
22 13.01
23 6.06
24 -4.00

Ontario Demand (MW)

Actual    Projected

HE
1 13,314
2 12,849
3 12,682
4 12,751
5 13,532
6 14,748
7 15,791
8 16,169
9 16,611
10 17,010
11 17,239
12 17,299
13 17,435
14 17,481
15 17,577
16 17,770
17 17,856
18 17,620
19 17,319
20 17,008
21 16,866
22 16,014
23 14,705
24 13,595

Market Demand (MW)

Actual    Projected

HE
1 16,085
2 15,680
3 15,525
4 15,560
5 15,991
6 17,248
7 18,538
8 18,825
9 19,229
10 19,587
11 19,863
12 19,940
13 20,184
14 20,181
15 20,348
16 20,418
17 20,472
18 20,098
19 19,615
20 19,376
21 19,315
22 18,417
23 17,062
24 15,004
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
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 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
Jul 2017
Aug 2017
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 23 Jun 2017


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 12 Jun 2017 17 21,168
2 16 Jun 2017 17 19,452
3 11 Jun 2017 19 19,062
4 13 Jun 2017 19 19,029
5 19 Jun 2017 18 18,770
6 18 Jun 2017 17 18,003
7 14 Jun 2017 19 17,901
8 17 Jun 2017 14 17,827
9 18 May 2017 18 17,738 17,438
10 22 Jun 2017 21 17,667

* This column is reflected in the demand chart above