County annual report · FIPS 48299
2020 Llano County, TX Power Outage Report
In 2020, customers in Llano County, TX went without power for an average of 2.4 hours, a total of 24K customer-hours (Texas average 5.3 hours). That ranks 211th worst of 254 Texas counties and 2073rd 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 Llano 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 | September 17, 2020 00:00 | September 17, 2020 01:30 | 1h 30m | 3,342 | 1,639 |
| 2 | May 25, 2020 00:45 | May 25, 2020 19:00 | 18h 15m | 1,010 | 753 |
| 3 | May 16, 2020 03:00 | May 17, 2020 01:30 | 22h 30m | 848 | 3,649 |
| 4 | April 9, 2020 18:15 | April 10, 2020 01:30 | 7h 15m | 711 | 768 |
| 5 | October 22, 2020 14:00 | October 22, 2020 15:00 | 1h | 637 | 319 |
| 6 | September 28, 2020 07:00 | September 28, 2020 10:00 | 3h | 631 | 485 |
| 7 | March 20, 2020 09:15 | March 20, 2020 11:30 | 2h 15m | 569 | 439 |
| 8 | April 12, 2020 09:00 | April 12, 2020 23:45 | 14h 45m | 568 | 2,308 |
| 9 | July 12, 2020 21:45 | July 13, 2020 00:00 | 2h 15m | 533 | 824 |
| 10 | September 18, 2020 13:00 | September 18, 2020 17:00 | 4h | 532 | 1,697 |
Outage episodes by size in 2020: 30 reached 100+ customers, 2 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 Llano 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 |
|---|---|---|---|---|---|
| Pedernales Electric Coop, Inc | 2020 | 58 min | 0.68 | 58 min | 0.68 |
| Central Texas Elec Coop, Inc | 2020 | 2.2 hrs | 1.32 | 1.8 hrs | 1.24 |
| Hamilton County Elec Coop Assn | - | - | - | - | - |
| City of Llano - (TX) | - | - | - | - | - |
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 ÷ 9,838 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. Llano County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Llano 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/llano-county