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Power goes out when electricity cannot reach the affected homes and businesses—because of damage or a fault on local equipment, or a disturbance elsewhere on the grid. Restoration depends on what failed and how widely it affected service. Utility operators manage system conditions; field crews inspect and repair equipment. There is no single repair order or return-to-service time that applies to every utility or outage.
Why did my power go out?
An outage means electricity could not be delivered through the part of the system serving a customer. The cause may be close by, such as a damaged distribution line, or part of a broader disturbance involving transmission or generation. The U.S. Federal Energy Regulatory Commission (FERC) distinguishes local distribution from interstate transmission; problems on transmission can also affect customer service.
Local damage and equipment faults
Storms can bring tree limbs down onto distribution lines or lightning strikes to substations. Outages can also follow physical damage such as a vehicle hitting a utility pole, or equipment faults. Weather is a common context for damage, but it is not the only possible cause.
Broader grid disturbances
An interruption affecting a wider area can involve generation or transmission rather than a single neighborhood circuit. The grid must withstand sudden disturbances and maintain enough resources to meet demand. These are related but distinct reliability concerns: secure operation during disturbances and resource adequacy, or having enough electricity available for consumers.
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Operators monitor grid conditions and balance electricity supply and demand in real time. That system-level work helps maintain service, but it is different from the field work required to repair damaged local equipment.
How do power crews restore electricity?
Restoration varies by utility, the location and type of damage, and whether the event affects only local distribution or a broader part of the grid. Utilities plan for operating challenges and mobilize crews under their response and recovery plans when major events occur. FERC and the North American Electric Reliability Corporation (NERC) describe system-level restoration planning, but there is no universal numbered repair sequence that every utility follows.
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Local distribution outages
For a local outage, field crews inspect the affected equipment and repair the damage or fault. Control-room operators manage wider system conditions and coordinate as needed, while crews work on lines and other equipment. Distribution repairs and bulk-system recovery are different tasks, though a problem at one scale can affect the other.
Widespread system recovery
A major bulk-system outage may require coordination among multiple entities. Some generating resources have blackstart capability: they can start without support from the rest of the bulk system and help re-energize it. That is a system-recovery tool, not a description of every neighborhood outage or an indication of how quickly any specific customer will regain power.
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Who oversees which part of the grid?
FERC’s reliability jurisdiction is primarily at the bulk-system level. Local distribution oversight generally rests with state or local public utility commissions. This distinction helps explain why a local utility’s repair work and broader transmission or generation recovery may involve different organizations and responsibilities.
Why does it take so long to get power back?
The time depends on the kind and scale of the damage. A local equipment fault requires inspection and repair; a widespread event can require extensive repairs and coordination across multiple entities, and a bulk-system recovery may involve restoring parts of the system in a controlled way. The sources cited here do not establish a universal restoration order or timeline, and national averages cannot predict when service will return at a particular address.
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For an estimated restoration time or a current outage update, use the affected electric utility’s outage information. A national reliability statistic describes a population and period; it is not an estimate for an individual interruption.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What U.S. outage statistics say—and what they do not
The U.S. Energy Information Administration (EIA) reported an average of 11 hours of electricity interruptions per customer in the United States in 2024. EIA also attributed 80% of the hours without electricity that year to Hurricanes Beryl, Helene, and Milton. Those are national figures for 2024, not a claim that every customer lost power for 11 hours. The hurricane share illustrates how a few major events can dominate annual totals.
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How to read the reliability measures
| Measure | What it describes |
|---|---|
| SAIDI | Minutes of non-momentary interruption per customer per year. |
| SAIFI | Number of non-momentary interruptions per customer per year. |
| CAIDI | Average minutes needed to restore a non-momentary interruption. |
These measures answer different questions: SAIFI concerns frequency, SAIDI total interruption duration, and CAIDI average restoration duration per interruption. Comparisons also depend on whether major-event days are included. EIA’s “any method” figures combine reporting utilities using IEEE methods with utilities that do not; treatment of major events differs by method, and reported customer coverage is an estimate that can vary. When comparing states or years, check the period, geography, method, and major-event treatment. A national annual average is neither a local forecast nor a utility-specific restoration estimate.
Quick Recap
Sources
- FERC, Reliability Explainer (undated; accessed October 7, 2026).
- FERC and NERC, FERC, NERC Staff Report Identifies Beneficial Practices for Grid Restoration and Recovery (January 29, 2016).
- EIA, Electric Power Annual, Table 11.3 (2024 and 2023 data; released October 16, 2025).
- EIA, Hurricanes in 2024 led to the most hours without power in the United States in 10 years (December 1, 2025).
- FERC, Grid Reliability and the Role of the Federal Energy Regulatory Commission (undated; accessed October 7, 2026).
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