County annual report · FIPS 47177
2021 Warren County, TN Power Outage Report
In 2021, customers in Warren County, TN went without power for an average of 0.0 hours, a total of 5 customer-hours (Tennessee average 3.7 hours). That ranks 84th worst of 84 Tennessee counties and 2973rd of 2,974 nationally.
Compared with TN, the US and 2020
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Warren County, 2021
The 5 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 18, 2021 14:30 | February 18, 2021 15:15 | 45m | 1 | 1 |
| 2 | April 13, 2021 04:45 | April 13, 2021 05:30 | 45m | 1 | 1 |
| 3 | June 21, 2021 13:15 | June 21, 2021 14:00 | 45m | 1 | 1 |
| 4 | July 14, 2021 16:30 | July 14, 2021 16:45 | 15m | 1 | 0 |
| 5 | August 20, 2021 10:15 | August 20, 2021 12:30 | 2h 15m | 1 | 2 |
Outage episodes by size in 2021: 0 reached 100+ customers, 0 reached 1,000+ customers, 0 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 Warren County reported on EIA Form 861 for 2021, 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 |
|---|---|---|---|---|---|
| Middle Tennessee E M C | 2021 | 65 min | 1.00 | 55 min | 0.96 |
| McMinnville Electric System | 2021 | 52 min | 1.12 | 19 min | 0.72 |
| Caney Fork Electric Coop, Inc | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 73% of Tennessee's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 23,916 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. Warren County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Warren County, TN annual power outage report, 2021, 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/2021/tennessee/warren-county