Frequently Asked Questions

Does EIA publish data on peak or hourly electricity generation, demand, and prices?

The U.S. Energy Information Administration (EIA) publishes regional, annual, and projected peak electricity load (or demand) data in Tables 8.6.A and 8.6.B. of the Electric Power Annual.

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

EIA does not publish hourly data on electricity generation, electricity demand, or electricity prices on a regular basis. The articles in the Learn more section below contain the related information and data that EIA has published.  

Some Independent System Operators (ISO) or Regional Transmission Organizations (RTO) in North America publish data and charts with real-time or hourly generation data by type of fuel or energy source. The ISO/RTO Council (IRC) has links to the websites of its members.

Learn more:
Peak-to-average electricity demand ratio rising in New England and many other U.S. regions
Variability in electricity demand highlights potential roles for electricity storage
Rapid increases in electricity demand challenge both generating unit and system operators
Electricity demand patterns matter for valuing electricity supply resources

Electricity storage can smooth out moment-to-moment variations in electricity demand
Electricity demand changes in predictable patterns, includes animated graph of hourly demand profile
Case study of daily electricity demand in New England

Last updated: January 27, 2016

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