County annual report · FIPS 48319
2023 Mason County, TX Power Outage Report
In 2023, customers in Mason County, TX went without power for an average of 7.7 hours, a total of 22K customer-hours (Texas average 8.1 hours). That ranks 129th worst of 252 Texas counties and 1057th of 2,977 nationally.
Compared with TX, the US and 2022
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Mason County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 24, 2023 06:45 | May 25, 2023 17:00 | 1d 10h | 718 | 2,573 |
| 2 | April 3, 2023 20:30 | April 4, 2023 03:45 | 7h 15m | 653 | 1,554 |
| 3 | December 15, 2023 15:15 | December 15, 2023 17:00 | 1h 45m | 618 | 210 |
| 4 | June 21, 2023 21:15 | June 22, 2023 04:30 | 7h 15m | 616 | 544 |
| 5 | June 19, 2023 22:15 | June 20, 2023 06:15 | 8h | 605 | 1,526 |
| 6 | September 25, 2023 01:15 | September 26, 2023 20:15 | 1d 19h | 498 | 2,501 |
| 7 | September 16, 2023 15:30 | September 16, 2023 15:45 | 15m | 492 | 123 |
| 8 | February 2, 2023 04:15 | February 3, 2023 04:15 | 1d | 478 | 1,888 |
| 9 | April 23, 2023 01:30 | April 23, 2023 10:00 | 8h 30m | 452 | 1,647 |
| 10 | March 19, 2023 13:45 | March 19, 2023 20:00 | 6h 15m | 427 | 165 |
Outage episodes by size in 2023: 21 reached 100+ customers, 0 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 Mason County reported on EIA Form 861 for 2023, 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 | 2023 | 2.4 hrs | 1.24 | 1.8 hrs | 1.17 |
| Pedernales Electric Coop, Inc | 2023 | 4.6 hrs | 1.19 | 76 min | 0.85 |
| Central Texas Elec Coop, Inc | 2023 | 6.6 hrs | 2.09 | 3.5 hrs | 1.77 |
| City of Mason - (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 n/a of Texas's customers in 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 2,818 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. Mason County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Mason County, TX annual power outage report, 2023, 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/2023/texas/mason-county