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

Ontario Demand at 8:00 a.m. EST
13,773 MW
Market Demand at 8:00 a.m. EST
16,315 MW
Hourly Output by Fuel Type at 8:00 a.m. EST
Nuclear
11,102 MW
Hydro
4,146 MW
Gas
154 MW
Wind
409 MW
Solar
136 MW
Biofuel
0 MW
Hourly Ontario Energy Price at 8:00 a.m. EST
$1.24 / MWh
Global Adjustment 1st Estimate (June)
$119.54/ 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 -2.25
2 -2.05
3 -3.00
4 -3.17
5 -3.50
6 -2.70
7 0.40
8 1.24
9 6.18
10 6.16
11 13.00
12 6.18
13 5.90
14 4.85
15 5.27
16 6.08
17 13.00
18 13.00
19 13.00
20 8.85
21 13.00
22 13.00
23 0.00
24 -4.20

Ontario Demand (MW)

Actual    Projected

HE
1 12,957
2 12,339
3 12,020
4 11,877
5 11,702
6 11,854
7 12,723
8 13,773
9 14,255
10 14,700
11 15,067
12 15,149
13 15,153
14 15,128
15 15,326
16 15,673
17 16,132
18 16,291
19 16,098
20 15,583
21 15,410
22 14,837
23 13,895
24 12,973

Market Demand (MW)

Actual    Projected

HE
1 15,142
2 15,113
3 15,097
4 14,992
5 15,022
6 15,008
7 15,537
8 16,315
9 17,013
10 17,498
11 17,918
12 17,910
13 17,807
14 17,746
15 17,935
16 18,308
17 18,777
18 18,898
19 18,747
20 18,190
21 18,099
22 17,433
23 16,200
24 14,502
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 24 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 23 Jun 2017 17 18,054
7 18 Jun 2017 17 18,003
8 14 Jun 2017 19 17,901
9 17 Jun 2017 14 17,827
10 18 May 2017 18 17,738 17,438

* This column is reflected in the demand chart above