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Table Legend:
Zone PECO Zone
R Residential
Customer Group
SC Small Commercial
Customer Group
MC Medium Commercial
Customer Group
LC&I Large Commercial & Industrial Customer Group
CCI Consolidated Large Commercial & Industrial Customer Group

Monthly

Welcome to the Monthly Data page of the Data Room. Data items on this page are typically updated monthly, on or before the 13th of each month. Additional data items updated less frequently can be found on the Additional Data page of the Data Room.

The June 2025 data update was posted on June 11, 2025. 

Data Description

Please see the Data Series Overview: General Descriptions and Assumptions (3/3/2025) which pertains to the current, other, and historical data below.

Current Data

Data Series Zone R SC MC LC&I CCI
Hourly Load
Date Posted:
Data Through:

6/11/2025
Mar-25

6/11/2025
Mar-25

6/11/2025
Mar-25

8/12/2017
May-17

8/12/2017
May-17

6/11/2025
Mar-25
PLC & NSPL
Date Posted:
Data Through:

6/11/2025
May-25

6/11/2025
May-25

6/11/2025
May-25

6/13/2017
May-17

6/13/2017
May-17

6/11/2025
May-25
Customer Counts
Date Posted:
Data Through:
--/--/----
------

6/11/2025
May-25

6/11/2025
May-25

6/13/2017
Apr-17

6/13/2017
Apr-17

6/11/2025
May-25
Unaccounted for Energy
Date Posted:
Data Through:

6/11/2025
Mar-25
--/--/----
------		 --/--/----
------		 --/--/----
------		 --/--/----
------		 --/--/----
------

Other Data

PJM Hourly Deration Factors
Date Posted:
Data Through:

6/11/2025
May-25
PJM Daily Zonal Scaling Factors
Date Posted:
Data Through:

6/11/2025
May-25

Historical Data

Data Series Zone R SC MC LC&I Fixed LC&I
Hourly Load
Date Posted:
Data Through:

2/3/2017
Dec-13

4/13/2012
Dec-11

4/13/2012
Dec-11

2/3/2017
Dec-13

2/3/2017
Dec-13

4/13/2012
Dec-11

4/14/2011
Dec-08

4/13/2012
Dec-11

10/4/2011
Dec-08

2/3/2017
Dec-13

4/13/2012
Dec-11

4/14/2011
Dec-08

2/3/2017
Dec-13

4/13/2012
Dec-11

2/3/2017
Dec-13
PLC & NSPL
Date Posted:
Data Through:

4/13/2012
Dec-11

2/3/2017
Dec-13

4/13/2012
Dec-11

2/3/2017
Dec-13

4/13/2012
Dec-11

2/3/2017
Dec-13

4/13/2012
Dec-11

2/3/2017
Dec-13

4/13/2012
Dec-11

2/3/2017
Dec-13

4/13/2012
Dec-11

2/3/2017
Dec-13
Customer Counts
Date Posted:
Data Through:
--/--/----
------

2/3/2017
Dec-13

3/27/2009
Dec-08

2/3/2017
Dec-13

3/27/2009
Dec-08

2/3/2017
Dec-13

3/27/2009
Dec-08

1/13/2010
Dec-08

2/3/2017
Dec-13

7/23/2010
Jun-10

2/3/2017
Dec-13
Unaccounted for Energy
Date Posted:
Data Through:

3/27/2009
Dec-08

2/3/2017
Dec-13
--/--/----
------		 --/--/----
------		 --/--/----
------		 --/--/----
------		 --/--/----
------
PJM Hourly Deration Factors
Date Posted:
Data Through:

2/7/2017
Dec-13
PJM Daily Zonal Scaling Factors
Date Posted:
Data Through:

2/7/2017
Dec-13