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Hourly Load Data Archives

Historical information on hourly loads by ERCOT control area is provided for the years 1995-2016, with the exception of 2001, for which there is no available data.

The information may vary from report to report. Since April 2003, ERCOT has reported on load data in its eight weather zone. Prior to April 2003, ERCOT was divided into 11 control areas, and the load data was reported accordingly. 

Report Availability: The Hourly Load Archive report for the previous month is typically available around the 9th of the current month, to allow for settlements to process.

Key Documents

2024 ERCOT Hourly Load Data
Nov 6, 2024 - zip - 893.1 KB
2023 ERCOT Hourly Load Data
Jan 8, 2024 - zip - 1 MB
2022 ERCOT Hourly Load Data
Jan 31, 2023 - zip - 1 MB
2021 ERCOT Hourly Load Data
Jan 7, 2022 - zip - 1 MB
2020 ERCOT Hourly Load Data
Jan 12, 2021 - zip - 1 MB
2019 ERCOT Hourly Load Data
Jan 9, 2020 - zip - 1 MB
2018 ERCOT Hourly Load Data
Jan 7, 2019 - zip - 1 MB
2017 ERCOT Hourly Load Data
Jan 9, 2018 - zip - 1.1 MB
2016 ERCOT Hourly Load Data
Jan 10, 2017 - zip - 1.1 MB
2015 ERCOT Hourly Load Data
Jan 7, 2016 - xls - 1.6 MB
2014 ERCOT Hourly Load Data
Oct 22, 2015 - xls - 1.7 MB
2013 ERCOT Hourly Load Data
Oct 22, 2015 - xls - 1.7 MB
2012 ERCOT Hourly Load Data
Oct 22, 2015 - xls - 1.7 MB
2011 ERCOT Hourly Load Data
Oct 22, 2015 - xls - 1.7 MB
2010 ERCOT Hourly Load Data
Oct 22, 2015 - xls - 1.7 MB
2009 ERCOT Hourly Load Data
Oct 22, 2015 - xls - 1.7 MB
2008 ERCOT Hourly Load Data
Oct 22, 2015 - xls - 432 KB
2007 ERCOT Hourly Load Data
Oct 22, 2015 - xls - 1.7 MB
2006 ERCOT Hourly Load Data
Oct 22, 2015 - xls - 1.7 MB
2005 ERCOT Hourly Load Data
Oct 22, 2015 - xls - 1.7 MB
2004 ERCOT Hourly Load Data
Oct 22, 2015 - xls - 1.7 MB
2003 ERCOT Hourly Load Data
Oct 22, 2015 - xls - 1.7 MB
2002 ERCOT Hourly Load Data
Oct 22, 2015 - xls - 1.7 MB
2000 ERCOT Hourly Load Data
Nov 10, 2005 - zip - 372.5 KB
1999 ERCOT Hourly Load Data
Dec 11, 2002 - zip - 372.1 KB
1998 ERCOT Hourly Load Data
Dec 11, 2002 - zip - 1 MB
1997 ERCOT Hourly Load Data
Dec 11, 2002 - zip - 206.6 KB
1997 ERCOT Hourly Load Data
Jul 26, 2004 - xls - 106.5 KB
1997 ERCOT Hourly Load Data (Raw)
Jul 26, 2004 - txt - 58.5 KB
1996 ERCOT Hourly Load Data
Jul 26, 2004 - txt - 209 KB
1995 ERCOT Hourly Load Data
Jul 26, 2004 - txt - 58.5 KB