County annual report · FIPS 48313
2018 Madison County, TX Power Outage Report
In 2018, customers in Madison County, TX went without power for an average of 6.1 hours, a total of 13K customer-hours (Texas average 2.4 hours). That ranks 87th worst of 253 Texas counties and 905th of 2,798 nationally.
Compared with TX, the US and 2017
Coverage line is EAGLE-I's share of Texas 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 | March 29, 2018 05:30 | March 29, 2018 19:00 | 13h 30m | 2,537 | 4,081 |
| 2 | October 15, 2018 13:00 | October 16, 2018 06:15 | 17h 15m | 454 | 2,061 |
| 3 | August 28, 2018 23:15 | August 29, 2018 01:45 | 2h 30m | 345 | 264 |
| 4 | April 14, 2018 03:45 | April 14, 2018 13:30 | 9h 45m | 300 | 1,026 |
| 5 | April 15, 2018 20:00 | April 16, 2018 02:00 | 6h | 274 | 1,183 |
| 6 | May 14, 2018 21:00 | May 15, 2018 02:00 | 5h | 113 | 217 |
| 7 | October 7, 2018 14:00 | October 7, 2018 15:45 | 1h 45m | 76 | 133 |
| 8 | May 11, 2018 17:15 | May 11, 2018 23:15 | 6h | 75 | 131 |
| 9 | September 3, 2018 08:15 | September 3, 2018 15:00 | 6h 45m | 68 | 360 |
| 10 | May 4, 2018 17:00 | May 4, 2018 19:30 | 2h 30m | 62 | 46 |
Outage episodes by size in 2018: 6 reached 100+ customers, 1 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 |
|---|---|---|---|---|---|
| Entergy Texas Inc. | 2018 | 4.3 hrs | 1.77 | 3.7 hrs | 1.67 |
| Navasota Valley Elec Coop, Inc | 2018 | 7.4 hrs | 3.23 | 6.8 hrs | 3.12 |
| Houston County Elec Coop Inc | - | - | - | - | - |
| Mid-South Electric Coop Assn | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 90% of Texas's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 2,203 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 2015–2025.
Cite this report
MassOutage (massoutage.com), Madison County, TX 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/texas/madison-county