County annual report · FIPS 48201
2015 Harris County, TX Power Outage Report
In 2015, customers in Harris County, TX went without power for an average of 1.1 hours, a total of 2.0M customer-hours (Texas average 1.9 hours). That ranks 191st worst of 238 Texas counties and 1725th 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 Harris 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 | January 1, 2015 00:00 | January 6, 2015 23:00 | 5d 23h | 68,920 | 1.5M |
| 2 | January 11, 2015 10:30 | January 26, 2015 17:30 | 15d 7h | 52,685 | 129K |
| 3 | February 11, 2015 10:45 | March 8, 2015 06:00 | 24d 19h | 11,635 | 153K |
| 4 | March 8, 2015 07:00 | March 14, 2015 08:00 | 6d 1h | 8,464 | 65K |
| 5 | January 7, 2015 23:30 | January 11, 2015 09:30 | 3d 10h | 7,270 | 17K |
| 6 | January 27, 2015 16:00 | February 11, 2015 10:00 | 14d 18h | 7,255 | 82K |
| 7 | August 11, 2015 21:45 | August 12, 2015 19:30 | 21h 45m | 1,125 | 2,640 |
| 8 | November 26, 2015 20:15 | November 26, 2015 20:45 | 30m | 555 | 278 |
| 9 | January 26, 2015 18:15 | January 27, 2015 15:15 | 21h | 468 | 2,409 |
| 10 | June 30, 2015 21:00 | June 30, 2015 21:15 | 15m | 440 | 110 |
Outage episodes by size in 2015: 19 reached 100+ customers, 7 reached 1,000+ customers, 3 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 Harris 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 |
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 ÷ 1,827,686 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. Harris County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Harris 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/harris-county