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Power Data

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

Ontario Demand at 3:00 p.m. EST
18,232 MW
Market Demand at 3:00 p.m. EST
21,581 MW
Hourly Output by Fuel Type at 3:00 p.m. EST
Nuclear
10,692 MW
Hydro
4,621 MW
Gas
3,282 MW
Wind
503 MW
Solar
39 MW
Biofuel
106 MW
Hourly Ontario Energy Price at 3:00 p.m. EST
$43.85 / MWh
Global Adjustment 1st Estimate (January)
$87.77/ 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 53.94
2 43.91
3 42.20
4 32.99
5 38.31
6 37.29
7 50.86
8 58.79
9 54.95
10 59.14
11 59.55
12 50.79
13 46.18
14 49.07
15 43.85
16 48.46
17 59.55
18 93.33
19 90.01
20 50.00
21 50.00
22 44.28
23 45.79
24 42.34

Ontario Demand (MW)

Actual    Projected

HE
1 16,484
2 16,010
3 15,799
4 15,673
5 15,650
6 16,276
7 17,609
8 18,844
9 19,013
10 19,190
11 19,013
12 18,752
13 18,495
14 18,256
15 18,232
16 19,209
17 19,998
18 20,411
19 20,434
20 20,265
21 19,939
22 19,244
23 18,233
24 17,166

Market Demand (MW)

Actual    Projected

HE
1 20,197
2 19,569
3 19,332
4 19,228
5 19,261
6 19,803
7 21,239
8 22,222
9 22,474
10 23,074
11 22,865
12 22,592
13 22,111
14 21,967
15 21,581
16 22,882
17 24,052
18 24,872
19 24,820
20 24,231
21 23,676
22 22,594
23 21,368
24 20,236
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
Feb 2018
Mar 2018
Apr 2018
May 2018
Jun 2018
Jul 2018
Aug 2018
Sep 2018
Oct 2018
Nov 2018
Dec 2018
Date 1st 2nd Actual Rate Avg. HOEP
Jan 2018 8.78
Feb 2018
Mar 2018
Apr 2018
May 2018
Jun 2018
Jul 2018
Aug 2018
Sep 2018
Oct 2018
Nov 2018
Dec 2018
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 16 Jan 2018


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 05 Jan 2018 18 20,906
5 06 Jan 2018 18 20,768
6 19 Jul 2017 19 20,627 20,024
7 24 Sep 2017 18 20,457 19,854
8 07 Jan 2018 18 20,429
9 03 Jan 2018 18 20,380
10 06 Jul 2017 18 20,366 19,869

* This column is reflected in the demand chart above