County annual report · FIPS 47023
2020 Chester County, TN Power Outage Report
In 2020, customers in Chester County, TN went without power for an average of 4.4 hours, a total of 26K customer-hours (Tennessee average 6.5 hours). That ranks 30th worst of 84 Tennessee counties and 1517th of 3,019 nationally.
Compared with TN, the US and 2019
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Chester County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 3, 2020 06:00 | June 3, 2020 07:00 | 1h | 1,725 | 1,725 |
| 2 | August 27, 2020 13:15 | August 27, 2020 13:30 | 15m | 1,447 | 362 |
| 3 | March 29, 2020 02:45 | March 29, 2020 05:45 | 3h | 1,437 | 1,806 |
| 4 | April 4, 2020 07:45 | April 4, 2020 09:45 | 2h | 1,377 | 2,411 |
| 5 | May 4, 2020 23:30 | May 5, 2020 11:00 | 11h 30m | 1,156 | 2,881 |
| 6 | May 3, 2020 20:45 | May 4, 2020 05:45 | 9h | 1,091 | 1,828 |
| 7 | May 14, 2020 04:30 | May 14, 2020 06:15 | 1h 45m | 962 | 1,684 |
| 8 | April 1, 2020 12:30 | April 1, 2020 13:00 | 30m | 895 | 256 |
| 9 | October 11, 2020 12:30 | October 11, 2020 14:45 | 2h 15m | 895 | 1,379 |
| 10 | November 23, 2020 14:00 | November 23, 2020 17:45 | 3h 45m | 754 | 901 |
Outage episodes by size in 2020: 18 reached 100+ customers, 6 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 2020, 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 73% of Tennessee's customers in 2020; 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, 2020, 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/2020/tennessee/chester-county