County annual report · FIPS 48339
2019 Montgomery County, TX Power Outage Report
In 2019, customers in Montgomery County, TX went without power for an average of 8.1 hours, a total of 1.9M customer-hours (Texas average 4.9 hours). That ranks 99th worst of 254 Texas counties and 693rd of 2,945 nationally.
Compared with TX, the US and 2018
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Montgomery County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 9, 2019 13:45 | December 10, 2019 03:15 | 13h 30m | 25,715 | 6,629 |
| 2 | August 21, 2019 10:30 | August 22, 2019 04:30 | 18h | 15,677 | 4,099 |
| 3 | September 17, 2019 23:00 | September 24, 2019 06:15 | 6d 7h | 14,531 | 290K |
| 4 | May 6, 2019 11:30 | May 30, 2019 03:15 | 23d 15h | 13,715 | 379K |
| 5 | July 30, 2019 06:45 | August 1, 2019 02:45 | 1d 20h | 10,032 | 49K |
| 6 | May 1, 2019 22:15 | May 5, 2019 18:30 | 3d 20h | 9,790 | 61K |
| 7 | July 2, 2019 13:15 | July 4, 2019 06:00 | 1d 16h | 8,736 | 7,187 |
| 8 | September 25, 2019 06:15 | September 27, 2019 01:30 | 1d 19h | 8,565 | 9,360 |
| 9 | June 16, 2019 11:45 | June 19, 2019 18:45 | 3d 7h | 8,529 | 86K |
| 10 | April 7, 2019 11:45 | April 9, 2019 04:30 | 1d 16h | 8,515 | 96K |
Outage episodes by size in 2019: 202 reached 100+ customers, 92 reached 1,000+ customers, 5 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 2019, 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 |
| CenterPoint Energy | 2018 | 3.0 hrs | 1.62 | 2.3 hrs | 1.37 |
| Sam Houston Electric Coop Inc | 2018 | 7.6 hrs | - | 5.2 hrs | - |
| San Bernard Electric Coop, Inc | 2018 | 1.7 hrs | 1.06 | 78 min | 0.94 |
| 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 93% of Texas's customers in 2019; 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, 2019, 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/2019/texas/montgomery-county