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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 10:00 a.m. EST
18,524 MW
Market Demand at 10:00 a.m. EST
20,772 MW
Hourly Output by Fuel Type at 9:00 a.m. EST
Nuclear
11,201 MW
Hydro
4,238 MW
Gas
2,823 MW
Wind
185 MW
Solar
173 MW
Biofuel
27 MW
Hourly Ontario Energy Price at 10:00 a.m. EST
$25.80 / MWh
Global Adjustment 1st Estimate (July)
$135.27/ 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 15.68
2 15.05
3 16.38
4 9.26
5 6.26
6 10.84
7 20.33
8 22.59
9 25.38
10 25.80
11 28.60
12 28.78
13 42.12
14 43.21
15 35.82
16 42.76
17 44.64
18 44.62
19 35.00
20 28.78
21 25.81
22 25.70
23 23.52
24 14.40

Price Today

Ontario Demand (MW)

Actual    Projected

HE
1 15,022
2 14,272
3 13,890
4 13,855
5 14,176
6 15,254
7 16,549
8 17,368
9 17,984
10 18,524
11 19,375
12 19,730
13 20,326
14 20,492
15 20,835
16 21,179
17 21,500
18 21,456
19 21,163
20 20,813
21 20,644
22 19,479
23 17,772
24 16,498

Ontario Demand Today

Market Demand (MW)

Actual    Projected

HE
1 17,547
2 16,971
3 16,726
4 16,880
5 17,087
6 18,006
7 18,980
8 19,680
9 20,338
10 20,772
11 21,731
12 21,967
13 22,366
14 22,749
15 23,075
16 23,510
17 23,820
18 23,773
19 23,500
20 23,243
21 23,038
22 22,105
23 20,963
24 18,267

Ontario Market Today

Recent Summaries

Daily

17 Jul 2019

Monthly

May 2019

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
Jul 2019 135.27
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
Mar 2019 81.05 75.75 80.41 27.34
Feb 2019 96.57 82.36 88.12 27.89
Jan 2019 67.41 83.06 80.92 27.82
Dec 2018 91.98 70.67 74.04 27.89
Nov 2018 122.35 105.40 98.55 25.14
Oct 2018 89.21 119.98 120.59 13.84
Sep 2018 84.24 86.60 85.84 29.94
Aug 2018 77.90 73.24 74.90 30.59
Date 1st 2nd Actual Rate Avg. HOEP
Jul 2019 13.53
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
Mar 2019 8.11 7.58 8.04 2.73
Feb 2019 9.66 8.24 8.81 2.79
Jan 2019 6.74 8.31 8.09 2.78
Dec 2018 9.20 7.07 7.40 2.79
Nov 2018 12.24 10.54 9.86 2.51
Oct 2018 8.92 12.00 12.06 1.38
Sep 2018 8.42 8.66 8.58 2.99
Aug 2018 7.79 7.32 7.49 3.06

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 18 Jul 2019

Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 05 Jul 2019 17 21,716
2 04 Jul 2019 18 21,423
3 10 Jul 2019 18 21,083
4 17 Jul 2019 17 20,870
5 03 Jul 2019 18 20,784
6 11 Jul 2019 13 20,760
7 16 Jul 2019 17 20,496
8 15 Jul 2019 17 20,406
9 09 Jul 2019 18 20,298
10 06 Jul 2019 17 20,281

* This column is reflected in the demand chart above

Peak Tracker for Global Adjustment Class A

XML