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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 12:00 p.m. EST
16,066 MW
Market Demand at 12:00 p.m. EST
17,970 MW
Hourly Output by Fuel Type at 11:00 a.m. EST
Nuclear
10,392 MW
Hydro
3,689 MW
Gas
1,948 MW
Wind
523 MW
Solar
164 MW
Biofuel
28 MW
Hourly Ontario Energy Price at 12:00 p.m. EST
$30.53 / MWh
Global Adjustment 1st Estimate (September)
$84.24/ 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 5.28
2 8.37
3 0.00
4 0.00
5 5.28
6 27.81
7 29.18
8 30.90
9 30.92
10 33.06
11 31.63
12 30.54
13 32.20
14 34.30
15 35.00
16 35.79
17 39.34
18 35.00
19 35.00
20 32.11
21 30.00
22 28.09
23 10.45
24 -0.10

Ontario Demand (MW)

Actual    Projected

HE
1 12,825
2 12,356
3 12,075
4 12,152
5 12,675
6 13,828
7 15,035
8 15,448
9 15,737
10 15,951
11 16,147
12 16,066
13 16,458
14 16,714
15 16,920
16 17,336
17 17,646
18 17,569
19 17,692
20 17,816
21 16,981
22 15,797
23 14,516
24 13,671

Market Demand (MW)

Actual    Projected

HE
1 15,585
2 15,051
3 14,557
4 14,876
5 15,426
6 16,303
7 17,141
8 17,355
9 17,529
10 17,916
11 18,152
12 17,970
13 18,804
14 18,953
15 19,122
16 19,629
17 19,817
18 19,850
19 19,972
20 20,155
21 19,094
22 17,904
23 17,021
24 15,068
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
Sep 2018 84.24
Aug 2018 77.90 73.24 74.90 30.59
Jul 2018 85.02 81.23 77.37 30.38
Jun 2018 133.36 102.39 118.96 18.34
May 2018 93.92 131.99 107.93 13.12
Apr 2018 98.10 100.74 99.59 29.66
Mar 2018 78.77 85.95 94.81 17.2
Feb 2018 73.33 77.05 81.67 19.01
Jan 2018 87.77 63.70 67.36 32.12
Dec 2017 83.91 96.69 92.07 20.63
Nov 2017 111.64 96.69 97.04 14.01
Oct 2017 102.12 119.73 125.63 8.75
Date 1st 2nd Actual Rate Avg. HOEP
Sep 2018 8.42
Aug 2018 7.79 7.32 7.49 3.06
Jul 2018 8.50 8.12 7.74 3.04
Jun 2018 13.34 10.24 11.90 1.83
May 2018 9.39 13.20 10.79 1.31
Apr 2018 9.81 10.07 9.96 2.97
Mar 2018 7.88 8.60 9.48 1.72
Feb 2018 7.33 7.71 8.17 1.90
Jan 2018 8.78 6.37 6.74 3.21
Dec 2017 8.39 9.67 9.21 2.06
Nov 2017 11.16 9.67 9.70 1.40
Oct 2017 10.21 11.97 12.56 0.88
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 20 Sep 2018


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 05 Sep 2018 18 23,240
2 05 Jul 2018 16 23,046 22,377
3 04 Jul 2018 19 22,518 22,017
4 28 Aug 2018 17 21,990
5 04 Sep 2018 17 21,885
6 03 Jul 2018 19 21,761 21,291
7 16 Jul 2018 12 21,536 20,954
8 15 Jul 2018 18 21,508 20,924
9 24 Jul 2018 17 21,451 20,943
10 09 Jul 2018 18 21,412 20,808

* This column is reflected in the demand chart above