County annual report · FIPS 48201
2023 Harris County, TX Power Outage Report
In 2023, customers in Harris County, TX went without power for an average of 3.4 hours, a total of 6.2M customer-hours (Texas average 8.1 hours). That ranks 200th worst of 252 Texas counties and 1833rd 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 Harris 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 | July 19, 2023 23:30 | 38d 9h | 88,095 | 1.8M |
| 2 | May 26, 2023 12:00 | June 11, 2023 12:15 | 16d | 56,009 | 877K |
| 3 | July 20, 2023 00:15 | September 17, 2023 19:15 | 59d 19h | 37,831 | 1.1M |
| 4 | January 19, 2023 10:45 | February 3, 2023 12:45 | 15d 2h | 28,159 | 446K |
| 5 | May 8, 2023 10:15 | May 18, 2023 09:45 | 9d 23h | 15,870 | 234K |
| 6 | September 17, 2023 20:15 | October 19, 2023 00:30 | 31d 4h | 14,210 | 359K |
| 7 | October 19, 2023 14:00 | January 1, 2024 00:00 | 73d 10h | 10,012 | 576K |
| 8 | February 3, 2023 13:45 | February 15, 2023 09:30 | 11d 19h | 8,016 | 51K |
| 9 | March 4, 2023 03:15 | March 11, 2023 08:30 | 7d 5h | 7,272 | 29K |
| 10 | March 30, 2023 09:45 | April 12, 2023 07:45 | 12d 22h | 6,379 | 126K |
Outage episodes by size in 2023: 29 reached 100+ customers, 26 reached 1,000+ customers, 7 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 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 |
| San Bernard Electric Coop, Inc | 2023 | 3.3 hrs | 1.92 | 2.0 hrs | 1.54 |
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 ÷ 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, 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/harris-county