Skip Links
Power Data

Power Data

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

Ontario Demand at 7:00 p.m. EST
13,516 MW
Market Demand at 7:00 p.m. EST
16,340 MW
Hourly Output by Fuel Type at 7:00 p.m. EST
Nuclear
9,919 MW
Hydro
5,106 MW
Gas
106 MW
Wind
596 MW
Solar
21 MW
Biofuel
1 MW
Hourly Ontario Energy Price at 7:00 p.m. EST
$5.80 / 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.

Learn more >
Supply Icon

Supply Overview

Get current and historical data for Ontario's transmission and distribution level supply and yearly import/export data.

Learn more >
Price Icon

Price Overview

Learn about electricity price trends and gain access to historical monthly average prices, global adjustment rates and time-of-use.

Learn more >
Conservation Icon

Conservation Overview

Learn about the progress made by Ontario's electricity conservation and demand response programs.

Learn more >
The Market Day

HOEP ($/MWh)

Dispatch    Pre-Dispatch

HE
1 0.00
2 -1.79
3 -3.00
4 -3.00
5 -2.00
6 -0.04
7 0.78
8 4.16
9 5.77
10 5.90
11 5.98
12 5.86
13 5.78
14 1.94
15 0.00
16 3.50
17 3.35
18 3.83
19 5.80
20 5.90
21 13.00
22 13.00
23 6.54
24 5.75

Ontario Demand (MW)

Actual    Projected

HE
1 11,378
2 11,179
3 10,942
4 10,915
5 10,984
6 11,072
7 11,364
8 11,984
9 12,283
10 12,562
11 12,576
12 12,394
13 12,165
14 11,984
15 11,952
16 12,312
17 12,774
18 13,210
19 13,516
20 13,622
21 13,891
22 13,321
23 12,386
24 11,616

Market Demand (MW)

Actual    Projected

HE
1 14,296
2 14,060
3 13,820
4 13,746
5 13,913
6 14,048
7 14,279
8 14,849
9 15,281
10 15,446
11 15,376
12 15,418
13 15,254
14 15,098
15 15,107
16 15,427
17 15,752
18 16,108
19 16,340
20 16,698
21 16,816
22 16,697
23 15,601
24 14,830
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 30.33
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 3.03
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 20 May 2018


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 02 May 2018 20 16,264
2 16 May 2018 20 16,167
3 14 May 2018 20 15,940
4 08 May 2018 20 15,933
5 03 May 2018 20 15,924
6 17 May 2018 20 15,904
7 09 May 2018 20 15,742
8 15 May 2018 20 15,704
9 07 May 2018 21 15,516
10 11 May 2018 20 15,311

* This column is reflected in the demand chart above