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Power Data

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

Ontario Demand at 8:00 a.m. EST
16,024 MW
Market Demand at 8:00 a.m. EST
18,333 MW
Hourly Output by Fuel Type at 8:00 a.m. EST
Nuclear
10,741 MW
Hydro
3,616 MW
Gas
268 MW
Wind
3,253 MW
Solar
7 MW
Biofuel
27 MW
Hourly Ontario Energy Price at 8:00 a.m. EST
$0.00 / MWh
Global Adjustment 1st Estimate (November)
$111.64/ 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 0.00
2 -0.01
3 -1.76
4 -3.00
5 -3.00
6 -0.01
7 0.00
8 0.00
9 3.88
10 5.88
11 0.00
12 0.00
13 0.00
14 0.00
15 0.00
16 5.88
17 26.12
18 32.70
19 34.67
20 35.75
21 34.56
22 35.75
23 13.32
24 0.00

Ontario Demand (MW)

Actual    Projected

HE
1 13,336
2 12,830
3 12,582
4 12,454
5 12,598
6 13,309
7 14,705
8 16,024
9 16,238
10 16,053
11 15,938
12 15,878
13 15,812
14 15,870
15 15,983
16 16,828
17 17,850
18 18,401
19 18,280
20 18,047
21 17,616
22 16,845
23 15,714
24 14,558

Market Demand (MW)

Actual    Projected

HE
1 15,784
2 15,373
3 15,379
4 15,408
5 15,114
6 15,690
7 17,007
8 18,333
9 18,931
10 18,859
11 19,120
12 18,979
13 18,842
14 18,945
15 19,016
16 19,897
17 20,786
18 21,349
19 21,265
20 21,081
21 20,526
22 19,609
23 18,551
24 17,184
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 115.00 104.76 101.09 17.28
Sep 2017 127.39 98.95 88.64 23.13
Oct 2017 102.12 119.73 125.63 8.75
Nov 2017 111.64
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 10.48 10.11 1.73
Sep 2017 12.74 9.90 8.86 2.31
Oct 2017 10.21 11.97 12.56 0.88
Nov 2017 11.16
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 21 Nov 2017


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 19 Jul 2017 19 20,627 20,024
5 24 Sep 2017 18 20,457 19,854
6 06 Jul 2017 18 20,366 19,869
7 11 Jul 2017 18 20,302 19,691
8 21 Jul 2017 17 20,192 19,730
9 21 Aug 2017 17 20,158 19,836
10 27 Sep 2017 13 20,122 19,601

* This column is reflected in the demand chart above