County annual report · FIPS 48339
2017 Montgomery County, TX Power Outage Report
In 2017, customers in Montgomery County, TX went without power for an average of 5.9 hours, a total of 1.4M customer-hours (Texas average 1.6 hours). That ranks 43rd worst of 249 Texas counties and 863rd of 2,786 nationally.
Compared with TX, the US and 2016
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Montgomery County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 25, 2017 17:30 | September 5, 2017 00:30 | 10d 7h | 22,109 | 702K |
| 2 | July 20, 2017 18:15 | July 21, 2017 07:15 | 13h | 9,258 | 13K |
| 3 | March 24, 2017 17:00 | March 26, 2017 17:30 | 2d | 7,254 | 51K |
| 4 | January 22, 2017 15:15 | January 23, 2017 06:45 | 15h 30m | 6,816 | 26K |
| 5 | October 21, 2017 12:45 | October 22, 2017 08:00 | 19h 15m | 6,660 | 47K |
| 6 | September 26, 2017 01:45 | September 26, 2017 04:00 | 2h 15m | 6,494 | 8,507 |
| 7 | December 12, 2017 12:45 | December 13, 2017 01:45 | 13h | 6,493 | 1,954 |
| 8 | January 15, 2017 16:45 | January 16, 2017 00:45 | 8h | 6,362 | 11K |
| 9 | March 29, 2017 05:45 | March 30, 2017 06:15 | 1d | 5,729 | 12K |
| 10 | September 6, 2017 04:00 | September 7, 2017 00:00 | 20h | 5,229 | 17K |
Outage episodes by size in 2017: 237 reached 100+ customers, 55 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 Montgomery County reported on EIA Form 861 for 2017, 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. | 2017 | 23.3 hrs | 2.33 | 3.7 hrs | 1.60 |
| CenterPoint Energy | 2017 | 7.6 hrs | 1.80 | 2.2 hrs | 1.26 |
| Sam Houston Electric Coop Inc | 2017 | 20.7 hrs | - | 7.1 hrs | - |
| San Bernard Electric Coop, Inc | 2017 | 3.4 hrs | 1.33 | 1.8 hrs | 1.19 |
| 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 2017; 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, 2017, 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/2017/texas/montgomery-county