County annual report · FIPS 47113
2018 Madison County, TN Power Outage Report
In 2018, customers in Madison County, TN went without power for an average of 2.8 hours, a total of 172K customer-hours (Tennessee average 2.1 hours). That ranks 20th worst of 71 Tennessee counties and 1577th 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 Madison 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 24, 2018 16:15 | August 7, 2018 21:15 | 14d 5h | 4,079 | 10K |
| 2 | July 5, 2018 03:15 | July 5, 2018 16:30 | 13h 15m | 3,036 | 12K |
| 3 | June 21, 2018 23:00 | June 22, 2018 13:30 | 14h 30m | 2,955 | 3,786 |
| 4 | January 22, 2018 12:15 | January 22, 2018 21:15 | 9h | 2,836 | 2,184 |
| 5 | February 24, 2018 04:00 | February 24, 2018 21:15 | 17h 15m | 2,667 | 4,334 |
| 6 | June 29, 2018 03:15 | June 29, 2018 15:15 | 12h | 1,895 | 2,691 |
| 7 | September 28, 2018 21:00 | September 29, 2018 12:15 | 15h 15m | 1,823 | 2,556 |
| 8 | May 23, 2018 19:30 | May 24, 2018 02:30 | 7h | 1,792 | 2,463 |
| 9 | August 12, 2018 04:30 | August 12, 2018 09:30 | 5h | 1,639 | 4,223 |
| 10 | November 2, 2018 21:15 | November 2, 2018 21:45 | 30m | 1,584 | 396 |
Outage episodes by size in 2018: 108 reached 100+ customers, 25 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 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 |
|---|---|---|---|---|---|
| Gibson Electric Members Corp | 2018 | 4.4 hrs | 3.02 | 3.3 hrs | 2.43 |
| City of Milan - (TN) | 2018 | 89 min | 1.61 | - | - |
| Southwest Tennessee E M C | - | - | - | - | - |
| City of Jackson - (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 55% of Tennessee's customers in 2018; 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, 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/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2018/tennessee/madison-county