County annual report · FIPS 48115
2015 Dawson County, TX Power Outage Report
In 2015, customers in Dawson County, TX went without power for an average of 17.1 hours, a total of 140K customer-hours (Texas average 1.9 hours). That ranks 25th worst of 238 Texas counties and 143rd of 2,484 nationally.
Compared with TX, the US
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Dawson County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 2, 2015 16:00 | January 6, 2015 23:00 | 4d 7h | 3,776 | 127K |
| 2 | March 17, 2015 21:15 | March 18, 2015 00:45 | 3h 30m | 1,441 | 396 |
| 3 | May 30, 2015 04:45 | May 31, 2015 04:15 | 23h 30m | 1,231 | 2,566 |
| 4 | January 22, 2015 03:30 | January 22, 2015 11:45 | 8h 15m | 282 | 2,068 |
| 5 | January 11, 2015 17:15 | January 11, 2015 18:30 | 1h 15m | 223 | 279 |
| 6 | May 4, 2015 15:15 | May 5, 2015 19:45 | 1d 4h | 157 | 1,892 |
| 7 | July 6, 2015 22:45 | July 7, 2015 01:15 | 2h 30m | 122 | 299 |
| 8 | May 22, 2015 01:00 | May 22, 2015 14:45 | 13h 45m | 119 | 1,049 |
| 9 | April 28, 2015 01:00 | April 28, 2015 04:00 | 3h | 105 | 229 |
| 10 | April 13, 2015 12:15 | April 13, 2015 18:00 | 5h 45m | 104 | 470 |
Outage episodes by size in 2015: 11 reached 100+ customers, 3 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 Dawson County reported on EIA Form 861 for 2015, 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 | 2015 | 4.5 hrs | 1.88 | 2.4 hrs | 1.36 |
| Southwestern Public Service Co | 2015 | 3.4 hrs | 1.53 | 2.1 hrs | 1.25 |
| Lyntegar Electric Coop, Inc | 2015 | 34.2 hrs | - | 8.0 hrs | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Texas's customers in 2015; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 8,173 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. Dawson County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Dawson County, TX annual power outage report, 2015, 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/2015/texas/dawson-county