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Power Data

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

Ontario Demand at 11:00 p.m. EST
14,908 MW
Market Demand at 11:00 p.m. EST
17,186 MW
Hourly Output by Fuel Type at 11:00 p.m. EST
Nuclear
9,876 MW
Hydro
4,687 MW
Gas
203 MW
Wind
1,007 MW
Solar
0 MW
Biofuel
1 MW
Hourly Ontario Energy Price at 11:00 p.m. EST
$9.47 / MWh
Global Adjustment 1st Estimate (May)
$93.92/ 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 5.71
2 5.95
3 5.85
4 5.76
5 5.73
6 0.00
7 3.83
8 4.77
9 12.71
10 12.07
11 10.30
12 22.38
13 12.17
14 15.23
15 29.60
16 34.84
17 37.01
18 38.26
19 34.36
20 23.60
21 17.74
22 12.29
23 9.47
24 13.31

Ontario Demand (MW)

Actual    Projected

HE
1 12,242
2 11,809
3 11,572
4 11,447
5 11,388
6 11,264
7 11,835
8 12,770
9 13,599
10 14,324
11 14,879
12 15,058
13 15,458
14 15,650
15 16,305
16 16,860
17 17,319
18 17,788
19 17,692
20 17,614
21 17,179
22 16,197
23 14,908
24 13,902

Market Demand (MW)

Actual    Projected

HE
1 14,900
2 14,764
3 14,513
4 14,367
5 14,266
6 13,791
7 14,031
8 14,758
9 15,794
10 16,790
11 17,256
12 17,481
13 17,756
14 18,034
15 19,020
16 19,340
17 19,462
18 19,636
19 19,417
20 19,262
21 18,743
22 17,567
23 17,186
24 16,140
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
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 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
Jun 2018
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 27 May 2018


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 25 May 2018 20 17,985
2 27 May 2018 18 17,788
3 24 May 2018 20 17,172
4 26 May 2018 17 16,942
5 23 May 2018 20 16,286
6 02 May 2018 20 16,264
7 16 May 2018 20 16,167
8 14 May 2018 20 15,940
9 08 May 2018 20 15,933
10 03 May 2018 20 15,924

* This column is reflected in the demand chart above