County annual report · FIPS 48121
2018 Denton County, TX Power Outage Report
In 2018, customers in Denton County, TX went without power for an average of 1.6 hours, a total of 538K customer-hours (Texas average 2.4 hours). That ranks 204th worst of 253 Texas counties and 2036th 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 Denton 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 20, 2018 22:00 | June 22, 2018 04:45 | 1d 6h | 12,024 | 22K |
| 2 | October 9, 2018 08:45 | October 10, 2018 06:00 | 21h 15m | 7,362 | 6,908 |
| 3 | August 24, 2018 12:45 | August 25, 2018 02:00 | 13h 15m | 6,945 | 6,810 |
| 4 | July 15, 2018 15:45 | July 17, 2018 11:00 | 1d 19h | 6,925 | 9,091 |
| 5 | June 7, 2018 17:00 | June 9, 2018 08:15 | 1d 15h | 6,568 | 24K |
| 6 | January 24, 2018 17:00 | January 24, 2018 21:45 | 4h 45m | 6,216 | 1,573 |
| 7 | October 23, 2018 12:00 | October 24, 2018 03:30 | 15h 30m | 5,955 | 5,535 |
| 8 | June 13, 2018 03:00 | June 13, 2018 05:45 | 2h 45m | 5,425 | 3,524 |
| 9 | September 29, 2018 22:00 | October 1, 2018 11:45 | 1d 13h | 5,382 | 6,301 |
| 10 | November 6, 2018 14:00 | November 7, 2018 13:00 | 23h | 5,132 | 6,913 |
Outage episodes by size in 2018: 173 reached 100+ customers, 71 reached 1,000+ customers, 1 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 Denton 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 |
| Tri-County Electric Coop, Inc (TX) | 2018 | 67 min | 0.70 | 40 min | 0.56 |
| Denton County Elec Coop, Inc | 2018 | 48 min | 0.50 | 40 min | 0.49 |
| City of Denton - (TX) | 2018 | 34 min | 0.74 | 34 min | 0.74 |
| Texas-New Mexico Power Co | - | - | - | - | - |
| Wise Electric Coop Inc | - | - | - | - | - |
| Cooke County Elec Coop Assn | - | - | - | - | - |
| City of Sanger - (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 ÷ 332,707 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. Denton County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Denton 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/denton-county