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    U.S. customers experienced an average of nearly six hours of power interruptions in 2018

    average total annual electric power service interuption duration
    Source: U.S. Energy Information Administration, Form EIA-861, Annual Electric Power Industry Report

    Interruptions in electricity service vary in frequency and duration across the nearly 3,000 electric distribution systems in the United States. Power interruptions are caused by many factors, including weather, vegetation patterns, and utility practices. In 2018, power outage durations for U.S. electricity customers averaged 5.8 hours per customer.

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    Energy Explained -- U.S. Energy Facts