County annual report · FIPS 47023
2018 Chester County, TN Power Outage Report
In 2018, customers in Chester County, TN went without power for an average of 4.2 hours, a total of 25K customer-hours (Tennessee average 2.1 hours). That ranks 13th worst of 71 Tennessee counties and 1202nd of 2,798 nationally.
Compared with TN, the US and 2017
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Chester County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 25, 2018 12:45 | July 25, 2018 14:00 | 1h 15m | 2,867 | 727 |
| 2 | June 22, 2018 13:00 | June 22, 2018 19:15 | 6h 15m | 2,180 | 1,779 |
| 3 | September 5, 2018 13:45 | September 5, 2018 14:00 | 15m | 1,418 | 355 |
| 4 | April 16, 2018 13:00 | April 16, 2018 13:30 | 30m | 1,397 | 699 |
| 5 | March 30, 2018 05:30 | March 30, 2018 06:45 | 1h 15m | 1,205 | 1,506 |
| 6 | December 1, 2018 02:15 | December 1, 2018 06:00 | 3h 45m | 951 | 1,230 |
| 7 | June 1, 2018 21:45 | June 1, 2018 23:15 | 1h 30m | 950 | 629 |
| 8 | October 5, 2018 22:30 | October 5, 2018 22:45 | 15m | 943 | 236 |
| 9 | April 15, 2018 16:15 | April 15, 2018 22:30 | 6h 15m | 928 | 4,641 |
| 10 | August 22, 2018 18:00 | August 22, 2018 19:15 | 1h 15m | 866 | 434 |
Outage episodes by size in 2018: 34 reached 100+ customers, 5 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 Chester County reported on EIA Form 861 for 2018, 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 |
|---|---|---|---|---|---|
| Southwest Tennessee E M C | - | - | - | - | - |
| Pickwick Electric Coop | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 55% of Tennessee's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 5,853 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. Chester County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Chester County, TN annual power outage report, 2018, 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/). https://massoutage.com/reports/2018/tennessee/chester-county