County annual report · FIPS 48299
2018 Llano County, TX Power Outage Report
In 2018, customers in Llano County, TX went without power for an average of 0.1 hours, a total of 1,334 customer-hours (Texas average 2.4 hours). That ranks 245th worst of 253 Texas counties and 2656th 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 Llano 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 | June 8, 2018 19:30 | June 8, 2018 23:30 | 4h | 123 | 105 |
| 2 | August 21, 2018 10:15 | August 21, 2018 12:15 | 2h | 47 | 55 |
| 3 | December 3, 2018 16:15 | December 3, 2018 16:30 | 15m | 41 | 10 |
| 4 | November 29, 2018 20:45 | November 29, 2018 23:30 | 2h 45m | 35 | 22 |
| 5 | May 16, 2018 00:00 | May 16, 2018 04:00 | 4h | 32 | 68 |
| 6 | April 10, 2018 22:00 | April 10, 2018 22:15 | 15m | 31 | 8 |
| 7 | February 1, 2018 20:00 | February 1, 2018 23:00 | 3h | 28 | 84 |
| 8 | December 5, 2018 21:15 | December 5, 2018 22:00 | 45m | 27 | 20 |
| 9 | November 5, 2018 18:00 | November 5, 2018 18:15 | 15m | 26 | 7 |
| 10 | April 9, 2018 15:30 | April 9, 2018 16:15 | 45m | 22 | 6 |
Outage episodes by size in 2018: 1 reached 100+ customers, 0 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 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 |
|---|---|---|---|---|---|
| Pedernales Electric Coop, Inc | 2018 | 61 min | 0.77 | 55 min | 0.77 |
| Central Texas Elec Coop, Inc | - | - | - | - | - |
| 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 90% of Texas's customers in 2018; 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, 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/llano-county