County annual report · FIPS 47113
2025 Madison County, TN Power Outage Report
In 2025, customers in Madison County, TN went without power for an average of 3.6 hours, a total of 224K customer-hours (Tennessee average 4.3 hours). That ranks 44th worst of 81 Tennessee counties and 1860th of 3,000 nationally.
Compared with TN, the US and 2024
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Madison County, 2025
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 15, 2025 21:15 | July 16, 2025 04:15 | 7h | 13,911 | 26K |
| 2 | June 19, 2025 06:15 | June 24, 2025 13:00 | 5d 6h | 5,391 | 24K |
| 3 | May 20, 2025 19:15 | May 21, 2025 12:30 | 17h 15m | 4,181 | 10K |
| 4 | April 21, 2025 18:45 | April 21, 2025 20:00 | 1h 15m | 4,025 | 1,646 |
| 5 | May 25, 2025 18:15 | May 26, 2025 03:15 | 9h | 2,718 | 7,134 |
| 6 | August 27, 2025 07:45 | August 27, 2025 08:45 | 1h | 2,126 | 875 |
| 7 | July 22, 2025 18:30 | July 22, 2025 22:45 | 4h 15m | 2,072 | 2,080 |
| 8 | March 26, 2025 04:00 | March 26, 2025 04:15 | 15m | 2,030 | 508 |
| 9 | June 6, 2025 17:30 | June 7, 2025 05:15 | 11h 45m | 1,741 | 7,974 |
| 10 | April 2, 2025 20:45 | April 5, 2025 12:30 | 2d 15h | 1,696 | 14K |
Outage episodes by size in 2025: 116 reached 100+ customers, 22 reached 1,000+ customers, 1 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 2025, 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 | 2024 | 5.2 hrs | 2.71 | 2.3 hrs | 2.37 |
| Southwest Tennessee E M C | 2023 | 11.7 hrs | 3.98 | 3.9 hrs | 2.67 |
| City of Milan - (TN) | 2024 | 5.8 hrs | 1.73 | - | - |
| City of Jackson - (TN) | 2024 | 1.9 hrs | 1.08 | 1.9 hrs | 1.08 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Tennessee's customers in 2025; 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, 2025, 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/2025/tennessee/madison-county