County annual report · FIPS 48201
2017 Harris County, TX Power Outage Report
In 2017, customers in Harris County, TX went without power for an average of 0.2 hours, a total of 381K customer-hours (Texas average 1.6 hours). That ranks 167th worst of 249 Texas counties and 2474th 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 Harris 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 | November 21, 2017 00:00 | December 10, 2017 14:00 | 19d 14h | 7,291 | 174K |
| 2 | December 19, 2017 23:45 | December 31, 2017 00:15 | 11d | 5,856 | 69K |
| 3 | December 10, 2017 14:45 | December 19, 2017 23:00 | 9d 8h | 4,645 | 69K |
| 4 | August 27, 2017 23:30 | September 4, 2017 00:00 | 7d | 1,089 | 55K |
| 5 | March 25, 2017 04:00 | March 26, 2017 00:30 | 20h 30m | 962 | 2,828 |
| 6 | July 10, 2017 01:30 | July 10, 2017 14:30 | 13h | 851 | 878 |
| 7 | May 27, 2017 20:45 | May 28, 2017 00:15 | 3h 30m | 575 | 1,055 |
| 8 | October 21, 2017 21:15 | October 22, 2017 07:00 | 9h 45m | 455 | 3,389 |
| 9 | September 26, 2017 01:45 | September 26, 2017 04:00 | 2h 15m | 454 | 572 |
| 10 | October 22, 2017 12:00 | October 22, 2017 22:30 | 10h 30m | 376 | 1,658 |
Outage episodes by size in 2017: 15 reached 100+ customers, 4 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 Harris 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 |
| San Bernard Electric Coop, Inc | 2017 | 3.4 hrs | 1.33 | 1.8 hrs | 1.19 |
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 ÷ 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, 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/harris-county