County annual report · FIPS 04001
2023 Apache County, AZ Power Outage Report
In 2023, customers in Apache County, AZ went without power for an average of 1.9 hours, a total of 55K customer-hours (Arizona average 2.1 hours). That ranks 9th worst of 14 Arizona counties and 2344th of 2,977 nationally.
Compared with AZ, the US and 2022
Coverage line is EAGLE-I's share of Arizona customers tracked each year.
Biggest outages in Apache 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 | December 23, 2023 03:15 | December 24, 2023 11:45 | 1d 8h | 4,284 | 24K |
| 2 | August 19, 2023 01:15 | September 5, 2023 23:00 | 17d 21h | 2,659 | 9,771 |
| 3 | September 8, 2023 18:15 | September 17, 2023 19:15 | 9d 1h | 1,386 | 6,738 |
| 4 | December 20, 2023 18:00 | December 20, 2023 18:15 | 15m | 1,024 | 256 |
| 5 | July 7, 2023 18:30 | August 18, 2023 04:45 | 41d 10h | 818 | 5,840 |
| 6 | November 21, 2023 17:15 | November 21, 2023 20:30 | 3h 15m | 702 | 1,166 |
| 7 | March 2, 2023 08:30 | March 2, 2023 10:15 | 1h 45m | 290 | 508 |
| 8 | September 17, 2023 20:15 | October 18, 2023 00:45 | 30d 4h | 213 | 3,344 |
| 9 | November 7, 2023 18:15 | November 7, 2023 18:45 | 30m | 167 | 43 |
| 10 | December 26, 2023 19:45 | December 27, 2023 02:45 | 7h | 108 | 63 |
Outage episodes by size in 2023: 10 reached 100+ customers, 4 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 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 |
|---|---|---|---|---|---|
| Arizona Public Service Co | 2023 | 1.6 hrs | 0.88 | 82 min | 0.81 |
| 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 2023; 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, 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/arizona/apache-county