County annual report · FIPS 48201
2025 Harris County, TX Power Outage Report
In 2025, customers in Harris County, TX went without power for an average of 5.3 hours, a total of 9.8M customer-hours (Texas average 4.6 hours). That ranks 173rd worst of 254 Texas counties and 1415th of 3,000 nationally.
Compared with TX, the US and 2024
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Harris County, 2025
The 5 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 5, 2025 10:30 | January 1, 2026 00:00 | 240d 13h | 148,911 | 7.4M |
| 2 | January 1, 2025 00:00 | March 20, 2025 20:30 | 78d 20h | 44,646 | 1.5M |
| 3 | March 20, 2025 23:30 | May 4, 2025 05:00 | 44d 5h | 18,414 | 891K |
| 4 | May 4, 2025 22:30 | May 4, 2025 22:45 | 15m | 1 | 0 |
| 5 | May 5, 2025 02:00 | May 5, 2025 02:15 | 15m | 1 | 0 |
Outage episodes by size in 2025: 3 reached 100+ customers, 3 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 2025, 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. | 2024 | 28.8 hrs | 3.46 | 5.1 hrs | 2.05 |
| CenterPoint Energy | 2024 | 71.9 hrs | 3.70 | 2.5 hrs | 1.62 |
| San Bernard Electric Coop, Inc | 2024 | 20.6 hrs | 3.00 | 2.7 hrs | 1.70 |
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 2025; 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, 2025, 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/2025/texas/harris-county