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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 9:00 p.m. EST
20,142 MW
Market Demand at 9:00 p.m. EST
21,384 MW
Hourly Output by Fuel Type at 9:00 p.m. EST
Nuclear
10,186 MW
Hydro
5,218 MW
Gas
3,042 MW
Wind
881 MW
Solar
0 MW
Biofuel
35 MW
Hourly Ontario Energy Price at 9:00 p.m. EST
$36.28 / 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 11.46
2 13.64
3 14.32
4 5.81
5 6.17
6 20.47
7 33.07
8 36.42
9 37.38
10 38.66
11 37.40
12 36.68
13 41.73
14 39.48
15 37.86
16 33.63
17 35.47
18 33.97
19 38.74
20 39.10
21 36.28
22 26.58
23 20.75
24 13.34

Ontario Demand (MW)

Actual    Projected

HE
1 15,572
2 15,196
3 14,618
4 14,652
5 14,925
6 16,022
7 18,202
8 19,874
9 20,718
10 21,369
11 21,281
12 20,521
13 20,805
14 20,720
15 20,816
16 20,659
17 20,743
18 20,656
19 20,502
20 20,466
21 20,142
22 18,850
23 17,068
24 15,587

Market Demand (MW)

Actual    Projected

HE
1 17,518
2 17,286
3 16,907
4 16,893
5 17,127
6 17,550
7 19,693
8 21,461
9 22,387
10 22,874
11 22,773
12 22,092
13 22,598
14 22,688
15 22,703
16 22,454
17 22,320
18 22,039
19 21,735
20 21,689
21 21,384
22 20,412
23 18,897
24 18,172
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 18 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
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 12 Jun 2018 17 18,303
10 25 May 2018 20 17,985

* This column is reflected in the demand chart above