County annual report · FIPS 48367
2021 Parker County, TX Power Outage Report
In 2021, customers in Parker County, TX went without power for an average of 28.3 hours, a total of 2.5M customer-hours (Texas average 21.0 hours). That ranks 102nd worst of 252 Texas counties and 310th of 2,974 nationally.
Compared with TX, the US and 2020
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Parker County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 13, 2021 06:00 | February 22, 2021 02:30 | 8d 20h | 37,290 | 2.2M |
| 2 | October 10, 2021 15:15 | October 12, 2021 01:15 | 1d 10h | 4,904 | 25K |
| 3 | June 21, 2021 08:45 | June 21, 2021 11:00 | 2h 15m | 4,455 | 1,702 |
| 4 | July 11, 2021 08:30 | July 12, 2021 05:45 | 21h 15m | 4,089 | 20K |
| 5 | December 15, 2021 16:15 | December 16, 2021 05:15 | 13h | 4,069 | 9,152 |
| 6 | January 14, 2021 15:00 | January 14, 2021 22:45 | 7h 45m | 3,142 | 10K |
| 7 | September 5, 2021 19:45 | September 6, 2021 11:15 | 15h 30m | 3,059 | 6,266 |
| 8 | May 17, 2021 23:30 | May 19, 2021 05:45 | 1d 6h | 2,981 | 3,619 |
| 9 | April 10, 2021 18:30 | April 10, 2021 20:45 | 2h 15m | 2,977 | 2,105 |
| 10 | March 14, 2021 04:00 | March 15, 2021 01:15 | 21h 15m | 2,943 | 13K |
Outage episodes by size in 2021: 153 reached 100+ customers, 56 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 Parker County reported on EIA Form 861 for 2021, 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) | 2021 | 31.8 hrs | 3.38 | 5.5 hrs | 2.89 |
| Wise Electric Coop Inc | - | - | - | - | - |
| Weatherford Mun Utility System | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 94% of Texas's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 87,476 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. Parker County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Parker County, TX annual power outage report, 2021, 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/2021/texas/parker-county