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Power Data

Power Data

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

Ontario Demand at 1:00 p.m. EST
16,462 MW
Market Demand at 1:00 p.m. EST
18,309 MW
Hourly Output by Fuel Type at 1:00 p.m. EST
Nuclear
12,141 MW
Hydro
4,364 MW
Gas
528 MW
Wind
255 MW
Solar
157 MW
Biofuel
54 MW
Hourly Ontario Energy Price at 1:00 p.m. EST
$6.05 / MWh
Global Adjustment 1st Estimate (June)
$124.44 / 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 -1.43
2 -3.17
3 -4.03
4 -4.10
5 -4.13
6 -0.73
7 1.30
8 10.12
9 8.80
10 5.98
11 6.41
12 6.78
13 6.05
14 6.69
15 6.68
16 5.72
17 5.20
18 5.00
19 5.00
20 5.00
21 5.00
22 0.00
23 0.00
24 -4.40

Ontario Demand (MW)

Actual    Projected

HE
1 13,236
2 12,680
3 12,508
4 12,422
5 12,624
6 13,616
7 15,043
8 15,783
9 16,057
10 16,271
11 16,474
12 16,475
13 16,462
14 16,618
15 16,635
16 16,750
17 17,045
18 17,124
19 17,158
20 17,154
21 16,897
22 15,742
23 14,400
24 13,357

Market Demand (MW)

Actual    Projected

HE
1 15,729
2 15,510
3 15,378
4 15,344
5 15,243
6 16,320
7 17,181
8 17,974
9 18,324
10 18,482
11 18,250
12 18,379
13 18,309
14 18,863
15 19,033
16 19,427
17 19,679
18 19,966
19 20,056
20 20,026
21 19,805
22 18,599
23 17,384
24 14,875
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
Jun 2019 124.44
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
Jul 2018 85.02 81.23 77.37 30.38
Date 1st 2nd Actual Rate Avg. HOEP
Jun 2019 12.44
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
Jul 2018 8.50 8.12 7.74 3.04
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 20 Jun 2019


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 19 Jun 2019 19 17,896
2 18 Jun 2019 19 17,520
3 01 May 2019 20 16,784 16,148
4 13 May 2019 20 16,510 16,009
5 20 Jun 2019 12 16,475
6 02 May 2019 20 16,451 15,953
7 07 Jun 2019 19 16,369
8 10 Jun 2019 17 16,253
9 12 Jun 2019 19 16,247
10 05 Jun 2019 20 16,221

* This column is reflected in the demand chart above