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

Ontario Demand at 10:00 a.m. EST
14,816 MW
Market Demand at 10:00 a.m. EST
16,468 MW
Hourly Output by Fuel Type at 10:00 a.m. EST
Nuclear
11,547 MW
Hydro
4,103 MW
Gas
288 MW
Wind
219 MW
Solar
106 MW
Biofuel
26 MW
Hourly Ontario Energy Price at 10:00 a.m. EST
($3.00) / 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.

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 -4.58
2 -4.66
3 -4.70
4 -4.70
5 -4.58
6 -4.13
7 -2.04
8 2.03
9 -1.02
10 -3.00
11 -3.00
12 -3.00
13 -3.00
14 0.00
15 0.00
16 4.88
17 5.20
18 6.12
19 6.18
20 6.00
21 5.15
22 0.00
23 -3.00
24 -4.60

Ontario Demand (MW)

Actual    Projected

HE
1 12,106
2 11,720
3 11,552
4 11,519
5 11,834
6 12,807
7 14,061
8 14,558
9 14,783
10 14,816
11 14,984
12 14,989
13 15,239
14 15,521
15 15,879
16 16,337
17 16,681
18 16,865
19 16,866
20 16,750
21 16,607
22 15,582
23 14,222
24 13,184

Market Demand (MW)

Actual    Projected

HE
1 14,276
2 13,926
3 13,824
4 13,819
5 14,104
6 15,025
7 15,960
8 16,451
9 16,644
10 16,468
11 17,164
12 17,383
13 17,500
14 17,652
15 18,115
16 18,616
17 18,908
18 19,089
19 19,075
20 18,941
21 18,666
22 17,222
23 16,427
24 14,525
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 28 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