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Power Data

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

This Hour's Data
Ontario Demand at 6:00 a.m. EST
11,754 MW
Market Demand at 6:00 a.m. EST
15,792 MW
Hourly Output by Fuel Type at 6:00 a.m. EST
Nuclear
10,076 MW
Hydro
3,484 MW
Gas
203 MW
Wind
1,996 MW
Solar
0 MW
Biofuel
0 MW
Hourly Ontario Energy Price at 6:00 a.m. EST
$0.00 / MWh
Global Adjustment 1st Estimate (March)
$104.32/ 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.
Supply Icon

Supply Overview

Get current and historical data for Ontario's transmission and distribution level supply and yearly import/export data.
Price Icon

Price Overview

Learn about electricity price trends and gain access to historical monthly average prices, global adjustment rates and time-of-use.
Conservation Icon

Conservation Overview

Learn about the progress made by Ontario's electricity conservation and demand response programs.
The Market Day

HOEP ($/MWh)

Dispatch    Pre-Dispatch

HE
1 0.00
2 0.00
3 0.00
4 0.00
5 0.00
6 0.00
7 0.00
8 0.00
9 0.00
10 0.00
11 0.00
12 0.00
13 0.00
14 0.00
15 0.00
16 0.00
17 0.00
18 0.00
19 4.92
20 5.89
21 0.00
22 0.00
23 0.00
24 -0.13

Price Today

Ontario Demand (MW)

Actual    Projected

HE
1 11,449
2 11,232
3 11,152
4 11,132
5 11,325
6 11,754
7 12,575
8 13,114
9 13,550
10 14,000
11 14,250
12 14,300
13 14,100
14 13,900
15 13,864
16 14,228
17 14,693
18 14,891
19 15,098
20 15,150
21 14,709
22 14,026
23 13,279
24 12,719

Ontario Demand Today

Market Demand (MW)

Actual    Projected

HE
1 15,350
2 15,357
3 15,260
4 15,300
5 15,538
6 15,792
7 17,029
8 17,664
9 17,946
10 18,234
11 18,268
12 17,967
13 17,781
14 17,578
15 17,571
16 17,846
17 18,194
18 18,237
19 18,413
20 18,627
21 17,890
22 17,361
23 16,322
24 14,652

Ontario Market Today

Recent Summaries

Daily

27 Mar 2020

Monthly

Feb 2020

Market Summaries Archive

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
Mar 2020 104.32
Feb 2020 124.51 114.35 113.31 14.52
Jan 2020 83.23 99.93 102.32 14.82
Dec 2019 85.69 90.66 93.21 21.91
Nov 2019 107.27 101.09 99.53 20.71
Oct 2019 178.78 118.86 136.80 7.25
Sep 2019 129.34 163.92 122.63 14.34
Aug 2019 72.11 109.74 126.07 16.13
Jul 2019 135.27 88.54 96.45 21.91
Jun 2019 124.44 147.72 137.28 4.83
May 2019 128.60 130.49 126.04 7.58
Apr 2019 81.29 124.88 123.33 15.57
Date 1st 2nd Actual Rate Avg. HOEP
Mar 2020 10.43
Feb 2020 12.45 11.44 11.33 1.45
Jan 2020 8.32 9.99 10.23 1.48
Dec 2019 8.57 9.07 9.32 2.19
Nov 2019 10.73 10.11 9.95 2.07
Oct 2019 17.88 11.89 13.68 0.73
Sep 2019 12.93 16.39 12.26 1.43
Aug 2019 7.21 10.97 12.61 1.61
Jul 2019 13.53 8.85 9.65 2.19
Jun 2019 12.44 14.77 13.73 0.48
May 2019 12.86 13.05 12.60 0.76
Apr 2019 8.13 12.49 12.33 1.56

Price Overview

Peak Tracker

Top 10 Ontario Demand Peaks from May 1, 2019 to April 30, 2020

New Ontario demand records are updated in real time. Verified Ontario demand values (AQEW) published 20 business days later.

as of 29 Mar 2020

Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 29 Jul 2019 17 21,791 21,068
2 05 Jul 2019 17 21,716 21,275
3 20 Jul 2019 18 21,646 20,942
4 19 Jul 2019 12 21,545 21,006
5 04 Jul 2019 18 21,423 20,956
6 21 Aug 2019 17 21,354 20,848
7 30 Jul 2019 17 21,269 20,509
8 20 Aug 2019 17 21,145 20,533
9 10 Jul 2019 18 21,083 20,510
10 07 Aug 2019 18 21,033 20,428

* This column is reflected in the demand chart above

Peak Tracker for Global Adjustment Class A

XML