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Columbia Power System - (TN): Outages & Reliability

As of October 7, 2026 09:00 UTC, no major outages are reported on Columbia Power System - (TN)'s network.

Columbia Power System - (TN) is an municipal utility serving 2 counties in Tennessee. In 2024, its customers went an average of 2.9 hours without power (SAIDI), across about 2.8 interruptions each. Its outage duration is better than the US average and better than the Tennessee median (4.8 h).

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No major outages currently reported on Columbia Power System - (TN)'s network.

Official reliability (EIA 2024)

US EIA
2.9 hrs
SAIDI / customer / yr
2.8
SAIFI / yr
63 min
CAIDI / outage
better than the US average (US 11.0h)
Residential price12.0¢/kWhaverage, US EIA 2024energy trends →

Reliability over time

Official EIA SAIDI, hours without power per customer per year (IEEE, incl. major events). Over this period Columbia Power System - (TN)’s reliability has been worsening (lower is better).

Columbia Power System - (TN) SAIDI by year2017–2024: 2017 8.6h, 2018 1.9h, 2020 16.5h, 2021 1.6h, 2022 8.0h, 2023 3.3h, 2024 2.9h. Highlighted: 2020 (highest).051015208.6h20171.9h201816.5h20201.6h20218.0h20223.3h20232.9h2024
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Outage trend · Columbia Power System - (TN)
0customers out · peak 2
Data as of Oct 7, 2026 09:00 UTC
Columbia Power System - (TN): customers without power, last 24 hoursPeak 2 customers out; latest 0 as of Oct 7, 2026 09:00 UTC. Each point is the highest reading in its interval.00.511.526 AM12 PM6 PMOct 7
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Times in EDT. Shaded stretches had no reading.

Counties served by Columbia Power System - (TN) (2)

Service territory reported to EIA-861; each links to live outage status and history.

Columbia Power System - (TN): FAQ

How reliable is Columbia Power System - (TN)?
Columbia Power System - (TN) customers averaged 2.9 hours without power in 2024 (SAIDI), which is about average and better than the US average, better than the Tennessee median (4.8 h), per official US EIA data.
How many customers does Columbia Power System - (TN) serve?
Columbia Power System - (TN) serves 2 counties across Tennessee, per its EIA-861 service territory filing.
Where does Columbia Power System - (TN) provide power?
Columbia Power System - (TN) operates in Tennessee. The full list of counties served is below, each linked to its live outage status.

Reliability metrics (SAIDI/SAIFI) and service territory from the US EIA Form 861. SAIDI/SAIFI are IEEE-standard, including major event days. Primary state: Tennessee.

Data from EIA Form 861 (utility reliability) and DOE/ORNL ODIN, every source we read. Live data as of .