County annual report · FIPS 48339
2025 Montgomery County, TX Power Outage Report
In 2025, customers in Montgomery County, TX went without power for an average of 10.0 hours, a total of 2.3M customer-hours (Texas average 4.6 hours). That ranks 117th worst of 254 Texas counties and 797th of 3,000 nationally.
Compared with TX, the US and 2024
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Montgomery 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 | May 26, 2025 13:15 | August 2, 2025 08:00 | 67d 18h | 41,377 | 999K |
| 2 | October 25, 2025 08:00 | November 3, 2025 01:45 | 8d 17h | 21,044 | 233K |
| 3 | March 3, 2025 10:45 | March 7, 2025 06:15 | 3d 19h | 14,576 | 97K |
| 4 | December 10, 2025 12:45 | December 11, 2025 07:15 | 18h 30m | 11,076 | 4,613 |
| 5 | February 28, 2025 12:15 | March 1, 2025 04:30 | 16h 15m | 10,328 | 9,060 |
| 6 | August 16, 2025 12:00 | August 23, 2025 06:15 | 6d 18h | 10,037 | 127K |
| 7 | May 1, 2025 12:00 | May 4, 2025 07:45 | 2d 19h | 9,768 | 51K |
| 8 | February 4, 2025 07:00 | February 7, 2025 12:45 | 3d 5h | 7,026 | 11K |
| 9 | May 20, 2025 11:45 | May 25, 2025 07:45 | 4d 20h | 7,020 | 34K |
| 10 | April 8, 2025 12:15 | April 11, 2025 11:15 | 2d 23h | 6,508 | 25K |
Outage episodes by size in 2025: 140 reached 100+ customers, 61 reached 1,000+ customers, 6 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 Montgomery 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 |
|---|---|---|---|---|---|
| Entergy Texas Inc. | 2024 | 28.8 hrs | 3.46 | 5.1 hrs | 2.05 |
| CenterPoint Energy | 2024 | 71.9 hrs | 3.70 | 2.5 hrs | 1.62 |
| Sam Houston Electric Coop Inc | 2024 | 76.4 hrs | - | 6.3 hrs | - |
| San Bernard Electric Coop, Inc | 2024 | 20.6 hrs | 3.00 | 2.7 hrs | 1.70 |
| 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 n/a of Texas's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 230,040 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. Montgomery County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Montgomery County, TX 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/texas/montgomery-county