U.S. Energy Information Administration logo
Skip to sub-navigation

Frequently Asked Questions (FAQs)

This page has no sub-navigation. Skip to page content.

Does EIA have information on unplanned outages of U.S. infrastructures?

We provide resources and reports that include information related to unplanned outages or shutdowns of energy infrastructures in the United States:

We also publish data on three metrics of annual electricity service reliability in the United States related to non-momentary electricity service interruptions experienced by customers:

  • System Average Interruption Frequency Index (SAIFI), which is the number of service interruptions the average customer experienced.
  • System Average Interruption Duration Index (SAIDI), which is the number of minutes of interruptions the average customer experienced.
  • Customer Average Interruption Duration Index (CAIDI), which is the average number of minutes it takes to restore service from electricity service interruptions.

We publish utility-level data in the Reliability data file of Form EIA-861. The data are aggregated on the national and state levels in Table 11 of the Electric Power Annual.

In addition, we publish articles on disruptions and outages of U.S. energy supply on our website.

Learn more:
The U.S. Department of Energy’s Emergency Response website provides information and updates related to specific response efforts to weather-related events.

Other FAQs about Electricity

Statistics
Analysis
Tools
Education
News

Petroleum & Other Liquids

Crude oil, gasoline, heating oil, diesel, propane, and other liquids including biofuels and natural gas liquids.

Natural Gas

Exploration and reserves, storage, imports and exports, production, prices, sales.

Electricity

Sales, revenue and prices, power plants, fuel use, stocks, generation, trade, demand & emissions.

Coal

Reserves, production, prices, employment and productivity, distribution, stocks, imports and exports.

Nuclear & Uranium

Uranium fuel, nuclear reactors, generation, spent fuel.

Renewable & Alternative Fuels

Includes hydropower, solar, wind, geothermal, biomass and ethanol.

EIA Survey Forms

Forms EIA uses to collect energy data including descriptions, links to survey instructions, and additional information.

Total Energy

Comprehensive data summaries, comparisons, analysis, and projections integrated across all energy sources.

U.S. States

State energy information, including overviews, rankings, data, and analyses.

International

International energy information, including overviews, rankings, data, and analyses.

Environment

Greenhouse gas data, voluntary reporting, electric power plant emissions.

Data Tools, Apps, & Maps

Tools to customize searches, view specific data sets, study detailed documentation, and access time-series data.

Open Data

EIA's free and open data available as API, Excel add-in, bulk files, and widgets

EIA Beta

Come test out some of the products still in development and let us know what you think!

Open Source Code

EIA's open source code, available on GitHub.

RSS Feeds

Subscribe to feeds for updates on EIA products including Today in Energy and What's New.