County annual report · FIPS 47035
2025 Cumberland County, TN Power Outage Report
In 2025, customers in Cumberland County, TN went without power for an average of 20.9 hours, a total of 758K customer-hours (Tennessee average 4.3 hours). That ranks 2nd worst of 81 Tennessee counties and 329th of 3,000 nationally.
Compared with TN, the US and 2024
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Cumberland County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 15, 2025 21:45 | March 18, 2025 00:45 | 2d 3h | 14,944 | 121K |
| 2 | March 4, 2025 14:45 | March 8, 2025 01:45 | 3d 11h | 11,605 | 200K |
| 3 | May 29, 2025 15:00 | May 29, 2025 20:15 | 5h 15m | 8,861 | 4,465 |
| 4 | June 22, 2025 20:00 | June 23, 2025 08:15 | 12h 15m | 5,008 | 11K |
| 5 | December 19, 2025 01:00 | December 20, 2025 18:15 | 1d 17h | 3,873 | 24K |
| 6 | November 18, 2025 15:15 | November 18, 2025 17:15 | 2h | 3,426 | 858 |
| 7 | January 17, 2025 13:15 | January 19, 2025 00:15 | 1d 11h | 3,402 | 116K |
| 8 | June 28, 2025 21:45 | June 29, 2025 05:45 | 8h | 3,395 | 8,573 |
| 9 | May 15, 2025 09:45 | May 15, 2025 18:45 | 9h | 3,372 | 10K |
| 10 | May 21, 2025 00:45 | May 22, 2025 03:45 | 1d 3h | 3,313 | 26K |
Outage episodes by size in 2025: 125 reached 100+ customers, 38 reached 1,000+ customers, 2 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Cumberland County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Volunteer Electric Coop | 2024 | 11.4 hrs | 5.80 | 7.3 hrs | 5.02 |
| Sequachee Valley Electric Coop | 2024 | 5.0 hrs | 3.09 | 4.2 hrs | 2.69 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Tennessee's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 36,171 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Cumberland County has data for 2019–2025.
Cite this report
MassOutage (massoutage.com), Cumberland County, TN annual power outage report, 2025, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2025/tennessee/cumberland-county