County annual report · FIPS 47079
2021 Henry County, TN Power Outage Report
In 2021, customers in Henry County, TN went without power for an average of 7.7 hours, a total of 169K customer-hours (Tennessee average 3.7 hours). That ranks 11th worst of 84 Tennessee counties and 966th 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 Henry 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 | May 4, 2021 09:15 | May 4, 2021 10:30 | 1h 15m | 7,825 | 4,526 |
| 2 | May 28, 2021 20:30 | May 29, 2021 00:00 | 3h 30m | 6,723 | 14K |
| 3 | April 24, 2021 15:00 | April 24, 2021 18:15 | 3h 15m | 5,891 | 13K |
| 4 | August 12, 2021 00:45 | August 12, 2021 05:15 | 4h 30m | 4,369 | 9,293 |
| 5 | December 8, 2021 21:15 | December 9, 2021 00:15 | 3h | 3,741 | 2,754 |
| 6 | June 29, 2021 21:00 | June 30, 2021 01:30 | 4h 30m | 2,293 | 3,527 |
| 7 | December 11, 2021 17:30 | December 15, 2021 00:00 | 3d 6h | 1,510 | 41K |
| 8 | May 5, 2021 13:30 | May 7, 2021 01:45 | 1d 12h | 1,384 | 9,560 |
| 9 | April 2, 2021 12:15 | April 2, 2021 14:00 | 1h 45m | 1,287 | 1,069 |
| 10 | August 1, 2021 01:45 | August 1, 2021 09:30 | 7h 45m | 972 | 1,778 |
Outage episodes by size in 2021: 111 reached 100+ customers, 9 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 Henry 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 |
|---|---|---|---|---|---|
| West Kentucky Rural E C C | 2021 | 52.2 hrs | 3.48 | 2.4 hrs | 1.60 |
| City of Paris - (TN) | 2021 | 12.3 hrs | 4.95 | 3.8 hrs | 3.08 |
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 ÷ 22,032 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. Henry County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Henry 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/henry-county