County annual report · FIPS 48309
2018 McLennan County, TX Power Outage Report
In 2018, customers in McLennan County, TX went without power for an average of 2.8 hours, a total of 286K customer-hours (Texas average 2.4 hours). That ranks 160th worst of 253 Texas counties and 1572nd of 2,798 nationally.
Compared with TX, the US and 2017
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in McLennan County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 1, 2018 07:00 | March 2, 2018 12:15 | 1d 5h | 5,662 | 21K |
| 2 | December 24, 2018 10:30 | December 25, 2018 00:00 | 13h 30m | 4,443 | 20K |
| 3 | October 9, 2018 08:30 | October 11, 2018 04:15 | 1d 19h | 3,938 | 11K |
| 4 | September 9, 2018 13:00 | September 9, 2018 23:30 | 10h 30m | 3,700 | 9,497 |
| 5 | February 24, 2018 16:30 | February 25, 2018 03:15 | 10h 45m | 3,415 | 11K |
| 6 | January 16, 2018 20:15 | January 19, 2018 01:00 | 2d 4h | 3,074 | 7,020 |
| 7 | November 11, 2018 23:30 | November 13, 2018 21:45 | 1d 22h | 3,018 | 16K |
| 8 | August 9, 2018 08:15 | August 11, 2018 00:15 | 1d 16h | 2,503 | 7,582 |
| 9 | January 20, 2018 06:15 | January 20, 2018 08:30 | 2h 15m | 2,374 | 3,443 |
| 10 | May 20, 2018 12:00 | May 21, 2018 04:30 | 16h 30m | 2,357 | 5,484 |
Outage episodes by size in 2018: 144 reached 100+ customers, 28 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 McLennan County reported on EIA Form 861 for 2018, 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 |
|---|---|---|---|---|---|
| Oncor Electric Delivery Company LLC | 2017 | 3.4 hrs | 1.69 | 2.4 hrs | 1.49 |
| Navasota Valley Elec Coop, Inc | 2018 | 7.4 hrs | 3.23 | 6.8 hrs | 3.12 |
| Heart of Texas Electric Coop | 2018 | 1.9 hrs | 1.15 | 1.7 hrs | 1.03 |
| HILCO Electric Cooperative, Inc. | 2018 | 1.7 hrs | 0.92 | 1.6 hrs | 0.92 |
| Texas-New Mexico Power Co | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 90% of Texas's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 101,960 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. McLennan County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), McLennan County, TX annual power outage report, 2018, 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/2018/texas/mclennan-county