County annual report · FIPS 47113
2020 Madison County, TN Power Outage Report
In 2020, customers in Madison County, TN went without power for an average of 2.7 hours, a total of 167K customer-hours (Tennessee average 6.5 hours). That ranks 45th worst of 84 Tennessee counties and 1974th 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 Madison 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 | May 3, 2020 01:30 | May 6, 2020 11:00 | 3d 9h | 9,829 | 71K |
| 2 | November 10, 2020 22:15 | November 11, 2020 00:30 | 2h 15m | 5,391 | 5,440 |
| 3 | May 27, 2020 19:45 | May 27, 2020 21:30 | 1h 45m | 3,171 | 4,044 |
| 4 | July 12, 2020 13:45 | July 12, 2020 20:45 | 7h | 2,282 | 5,795 |
| 5 | February 6, 2020 23:45 | February 7, 2020 06:15 | 6h 30m | 2,017 | 3,397 |
| 6 | March 29, 2020 01:30 | March 29, 2020 09:30 | 8h | 1,918 | 2,433 |
| 7 | August 19, 2020 05:45 | August 19, 2020 10:00 | 4h 15m | 1,470 | 5,861 |
| 8 | December 25, 2020 05:30 | December 25, 2020 13:15 | 7h 45m | 1,420 | 739 |
| 9 | October 19, 2020 21:45 | October 19, 2020 23:30 | 1h 45m | 1,250 | 1,541 |
| 10 | March 13, 2020 18:00 | March 14, 2020 17:15 | 23h 15m | 1,195 | 1,069 |
Outage episodes by size in 2020: 82 reached 100+ customers, 13 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 Madison 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 |
|---|---|---|---|---|---|
| Gibson Electric Members Corp | 2020 | 4.1 hrs | 1.35 | 2.4 hrs | 1.31 |
| City of Milan - (TN) | 2020 | 2.1 hrs | 1.79 | - | - |
| City of Jackson - (TN) | 2020 | 2.9 hrs | 1.27 | 1.6 hrs | 1.06 |
| Southwest Tennessee E M C | - | - | - | - | - |
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 ÷ 61,454 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. Madison County has data for 2016–2025.
Cite this report
MassOutage (massoutage.com), Madison 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/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2020/tennessee/madison-county