County annual report · FIPS 48309
2020 McLennan County, TX Power Outage Report
In 2020, customers in McLennan County, TX went without power for an average of 2.7 hours, a total of 277K customer-hours (Texas average 5.3 hours). That ranks 205th worst of 254 Texas counties and 1973rd of 3,019 nationally.
Compared with TX, the US and 2019
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in McLennan County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 27, 2020 10:15 | May 28, 2020 20:45 | 1d 10h | 18,273 | 39K |
| 2 | April 12, 2020 08:00 | April 14, 2020 02:45 | 1d 18h | 4,686 | 25K |
| 3 | June 20, 2020 07:30 | June 21, 2020 05:15 | 21h 45m | 4,635 | 8,660 |
| 4 | May 22, 2020 08:30 | May 22, 2020 17:15 | 8h 45m | 2,968 | 1,426 |
| 5 | October 15, 2020 04:45 | October 15, 2020 12:00 | 7h 15m | 2,152 | 2,805 |
| 6 | May 24, 2020 15:15 | May 26, 2020 05:15 | 1d 14h | 2,061 | 11K |
| 7 | September 1, 2020 20:45 | September 3, 2020 05:30 | 1d 8h | 1,965 | 22K |
| 8 | June 2, 2020 11:15 | June 3, 2020 08:30 | 21h 15m | 1,863 | 6,641 |
| 9 | October 8, 2020 02:00 | October 8, 2020 13:00 | 11h | 1,845 | 3,132 |
| 10 | October 11, 2020 06:15 | October 11, 2020 08:15 | 2h | 1,709 | 3,047 |
Outage episodes by size in 2020: 148 reached 100+ customers, 26 reached 1,000+ customers, 1 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 2020, 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 | 2020 | 6.9 hrs | 2.74 | 6.2 hrs | 2.60 |
| Heart of Texas Electric Coop | 2020 | 80 min | 0.74 | 80 min | 0.74 |
| HILCO Electric Cooperative, Inc. | 2020 | 2.4 hrs | 1.30 | 2.4 hrs | 1.29 |
| 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 63% of Texas's customers in 2020; 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, 2020, 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/2020/texas/mclennan-county