County annual report · FIPS 04001
2025 Apache County, AZ Power Outage Report
In 2025, customers in Apache County, AZ went without power for an average of 8.6 hours, a total of 253K customer-hours (Arizona average 1.6 hours). That ranks 3rd worst of 15 Arizona counties and 943rd of 3,000 nationally.
Compared with AZ, the US and 2024
Coverage line is EAGLE-I's share of Arizona customers tracked each year.
Biggest outages in Apache County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 1, 2025 17:45 | April 3, 2025 19:00 | 2d 1h | 5,562 | 7,838 |
| 2 | March 25, 2025 11:45 | March 25, 2025 13:15 | 1h 30m | 5,228 | 6,237 |
| 3 | May 11, 2025 22:30 | June 4, 2025 22:30 | 24d | 3,258 | 201K |
| 4 | July 17, 2025 16:15 | July 17, 2025 17:00 | 45m | 2,736 | 1,597 |
| 5 | November 30, 2025 21:45 | December 1, 2025 02:15 | 4h 30m | 2,623 | 9,134 |
| 6 | March 25, 2025 19:15 | March 25, 2025 19:30 | 15m | 2,018 | 505 |
| 7 | July 15, 2025 00:00 | July 15, 2025 03:15 | 3h 15m | 1,708 | 1,168 |
| 8 | October 18, 2025 18:00 | October 18, 2025 18:45 | 45m | 1,439 | 1,079 |
| 9 | July 15, 2025 04:00 | July 15, 2025 04:30 | 30m | 1,290 | 645 |
| 10 | May 7, 2025 20:30 | May 7, 2025 21:45 | 1h 15m | 1,258 | 1,260 |
Outage episodes by size in 2025: 28 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 Apache County reported on EIA Form 861 for 2025, 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 |
|---|---|---|---|---|---|
| Arizona Public Service Co | 2024 | 87 min | 0.93 | 81 min | 0.88 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Navajo Tribal Utility Authority | - | - | - | - | - |
| Navopache 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 n/a of Arizona's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 29,549 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. Apache County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Apache County, AZ annual power outage report, 2025, 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/2025/arizona/apache-county