County annual report · FIPS 47119
2021 Maury County, TN Power Outage Report
In 2021, customers in Maury County, TN went without power for an average of 1.5 hours, a total of 74K customer-hours (Tennessee average 3.7 hours). That ranks 57th worst of 84 Tennessee counties and 2449th 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 Maury County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 14, 2021 19:30 | September 14, 2021 20:00 | 30m | 5,743 | 1,438 |
| 2 | September 10, 2021 19:30 | September 13, 2021 20:45 | 3d 1h | 3,658 | 4,311 |
| 3 | May 6, 2021 22:15 | May 7, 2021 05:45 | 7h 30m | 2,729 | 2,173 |
| 4 | June 3, 2021 08:00 | June 3, 2021 15:45 | 7h 45m | 2,659 | 6,026 |
| 5 | October 26, 2021 13:45 | October 26, 2021 14:45 | 1h | 2,602 | 656 |
| 6 | May 4, 2021 11:45 | May 5, 2021 12:45 | 1d 1h | 2,552 | 4,763 |
| 7 | July 3, 2021 00:30 | July 3, 2021 01:45 | 1h 15m | 2,484 | 1,245 |
| 8 | April 1, 2021 13:45 | April 1, 2021 17:00 | 3h 15m | 2,470 | 1,870 |
| 9 | July 16, 2021 04:45 | July 16, 2021 19:30 | 14h 45m | 2,208 | 6,373 |
| 10 | June 12, 2021 00:30 | June 13, 2021 00:30 | 1d | 1,926 | 3,229 |
Outage episodes by size in 2021: 51 reached 100+ customers, 19 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 Maury 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 |
|---|---|---|---|---|---|
| Duck River Elec Member Corp | 2021 | 7.7 hrs | 2.06 | 2.2 hrs | 1.59 |
| Middle Tennessee E M C | 2021 | 65 min | 1.00 | 55 min | 0.96 |
| Columbia Power System - (TN) | 2021 | 1.6 hrs | 2.78 | 74 min | 2.48 |
| City of Mt Pleasant - (TN) | - | - | - | - | - |
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 ÷ 47,612 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. Maury County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Maury 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/maury-county