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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

Nov 12, 2021 - zip - 891.5 KB
Jan 12, 2021 - zip - 1 MB
Jan 9, 2020 - zip - 1 MB
Jan 7, 2019 - zip - 1 MB
Jan 9, 2018 - zip - 1.1 MB
Jan 10, 2017 - zip - 1.1 MB
Jan 7, 2016 - xls - 1.6 MB
Oct 22, 2015 - xls - 1.7 MB
Oct 22, 2015 - xls - 1.7 MB
Oct 22, 2015 - xls - 1.7 MB
Oct 22, 2015 - xls - 1.7 MB
Oct 22, 2015 - xls - 1.7 MB
Oct 22, 2015 - xls - 1.7 MB
Oct 22, 2015 - xls - 432 KB
Oct 22, 2015 - xls - 1.7 MB
Oct 22, 2015 - xls - 1.7 MB
Oct 22, 2015 - xls - 1.7 MB
Oct 22, 2015 - xls - 1.7 MB
Oct 22, 2015 - xls - 1.7 MB
Oct 22, 2015 - xls - 1.7 MB
Nov 10, 2005 - zip - 372.5 KB
Dec 11, 2002 - zip - 372.1 KB
Dec 11, 2002 - zip - 1 MB
Dec 11, 2002 - zip - 206.6 KB
Jul 26, 2004 - xls - 106.5 KB
Jul 26, 2004 - txt - 58.5 KB
Jul 26, 2004 - txt - 209 KB
Jul 26, 2004 - txt - 58.5 KB