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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 8:00 p.m. EST
15,138 MW
Market Demand at 8:00 p.m. EST
16,893 MW
Hourly Output by Fuel Type at 8:00 p.m. EST
Nuclear
10,420 MW
Hydro
4,371 MW
Gas
476 MW
Wind
294 MW
Solar
2 MW
Biofuel
126 MW
Hourly Ontario Energy Price at 8:00 p.m. EST
$5.92 / MWh
Global Adjustment 1st Estimate (June)
$133.36/ 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 0.00
3 0.85
4 1.33
5 0.00
6 0.39
7 4.35
8 22.20
9 45.45
10 26.84
11 14.37
12 14.34
13 14.35
14 14.34
15 14.33
16 14.35
17 11.68
18 5.85
19 2.97
20 5.92
21 13.00
22 14.34
23 13.00
24 13.00

Ontario Demand (MW)

Actual    Projected

HE
1 12,482
2 12,173
3 11,923
4 11,958
5 11,930
6 12,232
7 12,903
8 13,834
9 14,583
10 15,188
11 15,361
12 15,398
13 15,350
14 15,218
15 15,163
16 15,270
17 15,526
18 15,475
19 15,195
20 15,138
21 15,099
22 14,498
23 13,589
24 12,752

Market Demand (MW)

Actual    Projected

HE
1 15,090
2 14,887
3 14,592
4 14,575
5 14,001
6 14,369
7 14,876
8 15,750
9 16,483
10 17,154
11 17,229
12 17,335
13 17,355
14 17,234
15 17,239
16 17,356
17 17,460
18 17,279
19 16,832
20 17,228
21 17,204
22 17,154
23 15,826
24 14,901
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 2018 87.77 63.70 67.36 32.12
Feb 2018 73.33 77.05 81.67 19.01
Mar 2018 78.77 85.95 94.81 17.2
Apr 2018 98.10 100.74 99.59 29.66
May 2018 93.92 131.99 107.93 13.12
Jun 2018 133.36
Jul 2018
Aug 2018
Sep 2018
Oct 2018
Nov 2018
Dec 2018
Date 1st 2nd Actual Rate Avg. HOEP
Jan 2018 8.78 6.37 6.74 3.21
Feb 2018 7.33 7.71 8.17 1.90
Mar 2018 7.88 8.60 9.48 1.72
Apr 2018 9.81 10.07 9.96 2.97
May 2018 9.39 13.20 10.79 1.31
Jun 2018 13.34
Jul 2018
Aug 2018
Sep 2018
Oct 2018
Nov 2018
Dec 2018
Peak Tracker

Top 10 Ontario Demand Peaks from May 1, 2018 to April 30, 2019

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

as of 23 Jun 2018


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 18 Jun 2018 10 21,369
2 28 May 2018 18 20,473 19,943
3 31 May 2018 17 20,314
4 17 Jun 2018 18 20,155
5 29 May 2018 18 20,072
6 30 May 2018 17 20,027
7 01 Jun 2018 17 19,973
8 13 Jun 2018 15 18,738
9 19 Jun 2018 17 18,457
10 20 Jun 2018 19 18,317

* This column is reflected in the demand chart above