County annual report · FIPS 48339
2023 Montgomery County, TX Power Outage Report
In 2023, customers in Montgomery County, TX went without power for an average of 14.8 hours, a total of 3.4M customer-hours (Texas average 8.1 hours). That ranks 88th worst of 252 Texas counties and 588th of 2,977 nationally.
Compared with TX, the US and 2022
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Montgomery County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 11, 2023 13:45 | September 1, 2023 03:15 | 81d 13h | 64,824 | 1.3M |
| 2 | June 3, 2023 11:45 | June 11, 2023 12:15 | 8d | 20,039 | 360K |
| 3 | April 3, 2023 12:15 | May 29, 2023 06:45 | 55d 18h | 14,596 | 690K |
| 4 | September 12, 2023 11:15 | September 13, 2023 04:00 | 16h 45m | 11,090 | 19K |
| 5 | October 19, 2023 14:00 | November 12, 2023 06:45 | 23d 16h | 10,055 | 156K |
| 6 | March 30, 2023 12:45 | April 3, 2023 05:00 | 3d 16h | 8,475 | 53K |
| 7 | January 17, 2023 13:00 | January 29, 2023 03:30 | 11d 14h | 6,923 | 128K |
| 8 | October 9, 2023 12:30 | October 19, 2023 00:30 | 9d 12h | 6,513 | 17K |
| 9 | September 8, 2023 10:30 | September 11, 2023 10:15 | 2d 23h | 6,382 | 56K |
| 10 | March 8, 2023 09:15 | March 9, 2023 11:00 | 1d 1h | 5,851 | 5,126 |
Outage episodes by size in 2023: 61 reached 100+ customers, 38 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 2023, 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. | 2023 | 9.1 hrs | 2.38 | 5.2 hrs | 2.00 |
| CenterPoint Energy | 2023 | 5.9 hrs | 2.14 | 2.4 hrs | 1.58 |
| Sam Houston Electric Coop Inc | 2023 | 8.9 hrs | - | 5.5 hrs | - |
| San Bernard Electric Coop, Inc | 2023 | 3.3 hrs | 1.92 | 2.0 hrs | 1.54 |
| 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 2023; 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, 2023, 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/2023/texas/montgomery-county