County annual report · FIPS 48067
2018 Cass County, TX Power Outage Report
In 2018, customers in Cass County, TX went without power for an average of 9.9 hours, a total of 150K customer-hours (Texas average 2.4 hours). That ranks 54th worst of 253 Texas counties and 559th 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 Cass 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 14, 2018 20:30 | June 15, 2018 00:15 | 3h 45m | 8,512 | 2,357 |
| 2 | February 21, 2018 12:00 | February 22, 2018 18:30 | 1d 6h | 8,465 | 4,236 |
| 3 | October 9, 2018 21:00 | October 10, 2018 16:30 | 19h 30m | 8,372 | 8,488 |
| 4 | April 13, 2018 20:30 | April 15, 2018 23:15 | 2d 2h | 6,162 | 22K |
| 5 | April 6, 2018 22:00 | April 7, 2018 18:30 | 20h 30m | 3,079 | 9,380 |
| 6 | June 25, 2018 00:00 | June 25, 2018 12:00 | 12h | 2,204 | 8,890 |
| 7 | July 3, 2018 19:15 | July 5, 2018 00:45 | 1d 5h | 1,967 | 17K |
| 8 | July 5, 2018 16:15 | July 6, 2018 06:15 | 14h | 1,445 | 1,089 |
| 9 | January 17, 2018 06:45 | January 17, 2018 09:30 | 2h 45m | 1,331 | 3,597 |
| 10 | November 12, 2018 11:45 | November 12, 2018 21:00 | 9h 15m | 1,242 | 1,097 |
Outage episodes by size in 2018: 76 reached 100+ customers, 14 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 Cass 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 |
|---|---|---|---|---|---|
| Southwestern Electric Power Co | 2018 | 5.7 hrs | 2.14 | 4.2 hrs | 1.96 |
| Southwest Arkansas E C C | 2018 | 1.9 hrs | 1.23 | 1.8 hrs | 1.20 |
| Upshur Rural Elec Coop Corp | 2018 | 20.0 hrs | 5.34 | 10.8 hrs | 4.38 |
| Bowie-Cass Electric Coop, Inc | - | - | - | - | - |
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 ÷ 15,244 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. Cass County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Cass 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/cass-county