County annual report · FIPS 48473
2015 Waller County, TX Power Outage Report
In 2015, customers in Waller County, TX went without power for an average of 5.2 hours, a total of 95K customer-hours (Texas average 1.9 hours). That ranks 77th worst of 238 Texas counties and 545th of 2,484 nationally.
Compared with TX, the US
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Waller County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 27, 2015 00:15 | May 7, 2015 22:30 | 10d 22h | 4,699 | 23K |
| 2 | May 28, 2015 10:45 | June 7, 2015 01:30 | 9d 14h | 2,216 | 4,975 |
| 3 | May 25, 2015 13:45 | May 27, 2015 23:00 | 2d 9h | 2,008 | 10K |
| 4 | May 8, 2015 05:15 | May 15, 2015 16:45 | 7d 11h | 1,960 | 2,653 |
| 5 | May 18, 2015 11:15 | May 18, 2015 22:45 | 11h 30m | 1,579 | 2,925 |
| 6 | June 17, 2015 02:30 | June 29, 2015 09:00 | 12d 6h | 1,368 | 17K |
| 7 | June 7, 2015 02:15 | June 15, 2015 14:15 | 8d 12h | 1,125 | 2,478 |
| 8 | January 27, 2015 22:15 | January 28, 2015 18:30 | 20h 15m | 1,030 | 290 |
| 9 | August 10, 2015 23:45 | August 12, 2015 13:15 | 1d 13h | 853 | 326 |
| 10 | March 30, 2015 18:15 | April 2, 2015 09:45 | 2d 15h | 793 | 460 |
Outage episodes by size in 2015: 49 reached 100+ customers, 8 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 Waller County reported on EIA Form 861 for 2015, 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. | 2015 | 5.5 hrs | 2.06 | 3.4 hrs | 1.69 |
| CenterPoint Energy | 2015 | 4.3 hrs | 1.98 | 2.2 hrs | 1.33 |
| San Bernard Electric Coop, Inc | 2015 | 4.6 hrs | 2.36 | 2.7 hrs | 1.81 |
| Mid-South Electric Coop Assn | - | - | - | - | - |
| City of Hempstead - (TX) | - | - | - | - | - |
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 2015; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 18,532 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. Waller County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Waller County, TX annual power outage report, 2015, 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/2015/texas/waller-county