County annual report · FIPS 04017
2024 Navajo County, AZ Power Outage Report
In 2024, customers in Navajo County, AZ went without power for an average of 2.1 hours, a total of 177K customer-hours (Arizona average 1.7 hours). That ranks 7th worst of 14 Arizona counties and 2384th of 2,990 nationally.
Compared with AZ, the US and 2023
Coverage line is EAGLE-I's share of Arizona customers tracked each year.
Biggest outages in Navajo County, 2024
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 5, 2024 15:15 | April 6, 2024 02:30 | 11h 15m | 7,858 | 27K |
| 2 | April 26, 2024 06:15 | April 26, 2024 09:00 | 2h 45m | 5,826 | 16K |
| 3 | April 16, 2024 15:30 | April 17, 2024 13:30 | 22h | 5,824 | 1,500 |
| 4 | July 30, 2024 15:45 | July 30, 2024 23:30 | 7h 45m | 5,026 | 1,429 |
| 5 | July 6, 2024 13:00 | July 6, 2024 16:45 | 3h 45m | 3,050 | 11K |
| 6 | November 4, 2024 05:30 | November 5, 2024 00:00 | 18h 30m | 2,643 | 22K |
| 7 | March 2, 2024 21:45 | March 3, 2024 12:45 | 15h | 2,590 | 5,466 |
| 8 | September 10, 2024 09:15 | September 10, 2024 09:45 | 30m | 2,503 | 1,168 |
| 9 | September 16, 2024 09:15 | September 16, 2024 11:00 | 1h 45m | 2,500 | 1,169 |
| 10 | June 28, 2024 04:30 | June 28, 2024 05:15 | 45m | 2,404 | 1,803 |
Outage episodes by size in 2024: 91 reached 100+ customers, 21 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 Navajo County reported on EIA Form 861 for 2024, 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 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 84,388 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. Navajo County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Navajo County, AZ annual power outage report, 2024, 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/2024/arizona/navajo-county