County annual report · FIPS 04001
2015 Apache County, AZ Power Outage Report
In 2015, customers in Apache County, AZ went without power for an average of 0.3 hours, a total of 9,645 customer-hours (Arizona average 0.4 hours). That ranks 4th worst of 6 Arizona counties and 2173rd of 2,484 nationally.
Compared with AZ, the US
Coverage line is EAGLE-I's share of Arizona customers tracked each year.
Biggest outages in Apache County, 2015
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 20, 2015 16:45 | May 20, 2015 17:15 | 30m | 2,096 | 528 |
| 2 | October 6, 2015 18:30 | October 6, 2015 18:45 | 15m | 2,095 | 524 |
| 3 | December 1, 2015 17:15 | December 1, 2015 17:45 | 30m | 2,091 | 1,045 |
| 4 | April 20, 2015 17:30 | April 20, 2015 19:15 | 1h 45m | 1,701 | 1,791 |
| 5 | August 25, 2015 20:30 | August 25, 2015 21:15 | 45m | 836 | 402 |
| 6 | August 25, 2015 22:00 | August 25, 2015 23:15 | 1h 15m | 836 | 213 |
| 7 | March 2, 2015 05:45 | March 2, 2015 07:45 | 2h | 643 | 1,047 |
| 8 | December 12, 2015 13:00 | December 12, 2015 22:45 | 9h 45m | 343 | 600 |
| 9 | February 3, 2015 20:30 | February 3, 2015 21:00 | 30m | 149 | 39 |
| 10 | August 12, 2015 05:00 | August 12, 2015 05:15 | 15m | 148 | 37 |
Outage episodes by size in 2015: 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 2015, 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 | 2015 | 2.0 hrs | 0.91 | 87 min | 0.87 |
| 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 2015; 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, 2015, 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/2015/arizona/apache-county