County annual report · FIPS 48353
2018 Nolan County, TX Power Outage Report
In 2018, customers in Nolan County, TX went without power for an average of 2.8 hours, a total of 24K customer-hours (Texas average 2.4 hours). That ranks 162nd worst of 253 Texas counties and 1592nd 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 Nolan 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 | April 5, 2018 20:30 | April 5, 2018 21:15 | 45m | 5,718 | 1,431 |
| 2 | July 10, 2018 22:15 | July 11, 2018 03:00 | 4h 45m | 911 | 1,055 |
| 3 | April 24, 2018 23:15 | April 25, 2018 23:00 | 23h 45m | 305 | 990 |
| 4 | May 16, 2018 01:00 | May 16, 2018 04:15 | 3h 15m | 294 | 628 |
| 5 | May 16, 2018 07:15 | May 16, 2018 13:00 | 5h 45m | 261 | 560 |
| 6 | June 8, 2018 03:15 | June 9, 2018 23:30 | 1d 20h | 261 | 3,752 |
| 7 | December 23, 2018 19:30 | December 23, 2018 23:30 | 4h | 255 | 109 |
| 8 | October 6, 2018 18:30 | October 7, 2018 09:45 | 15h 15m | 251 | 1,287 |
| 9 | October 13, 2018 08:00 | October 13, 2018 09:15 | 1h 15m | 245 | 306 |
| 10 | June 19, 2018 09:00 | June 19, 2018 13:00 | 4h | 231 | 637 |
Outage episodes by size in 2018: 23 reached 100+ customers, 1 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 Nolan 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 |
| AEP Texas North Company | 2018 | 3.0 hrs | 1.57 | 2.3 hrs | 1.40 |
| Concho Valley Elec Coop Inc | 2018 | 8.3 hrs | 4.63 | 7.4 hrs | 4.55 |
| Big Country Electric Coop, Inc | - | - | - | - | - |
| Taylor Electric Coop Inc - (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 ÷ 8,654 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. Nolan County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Nolan 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/nolan-county