Frequently Asked Questions

Does EIA have data on peak and hourly electricity demand?

EIA publishes regional, annual, and projected peak electricity demand in Tables 8.6 to 8.9 in the section “Electric Power System Characteristics and Performance” of the Electric Power Annual.

Peak summer and winter demand for individual utilities are available in the EIA Form 861 database files.

EIA does not regularly collect or publish data on hourly electricity demand. You can access charts with a daily hourly load/demand profile for some Independent System Operators on Federal Energy Regulatory Commission’s (FERC) website:

Learn More:

Electricity demand changes in predictable patterns, includes animated graph of hourly demand profile.

Case study of daily electricity demand in New England

Last updated: March 19, 2013


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