County annual report · FIPS 04005
2021 Coconino County, AZ Power Outage Report
In 2021, customers in Coconino County, AZ went without power for an average of 1.6 hours, a total of 220K customer-hours (Arizona average 1.9 hours). That ranks 9th worst of 13 Arizona counties and 2414th of 2,974 nationally.
Compared with AZ, the US and 2020
Coverage line is EAGLE-I's share of Arizona customers tracked each year.
Biggest outages in Coconino County, 2021
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 24, 2021 03:00 | December 26, 2021 09:30 | 2d 6h | 8,869 | 31K |
| 2 | July 9, 2021 15:00 | July 9, 2021 17:15 | 2h 15m | 6,075 | 6,425 |
| 3 | July 21, 2021 20:00 | July 22, 2021 00:00 | 4h | 6,070 | 6,472 |
| 4 | July 14, 2021 20:30 | July 15, 2021 04:30 | 8h | 5,480 | 6,181 |
| 5 | April 10, 2021 05:15 | April 10, 2021 08:00 | 2h 45m | 4,432 | 6,459 |
| 6 | July 25, 2021 22:30 | July 26, 2021 01:30 | 3h | 4,416 | 4,499 |
| 7 | July 25, 2021 14:30 | July 25, 2021 16:00 | 1h 30m | 3,568 | 3,671 |
| 8 | July 23, 2021 20:00 | July 24, 2021 09:15 | 13h 15m | 3,348 | 6,677 |
| 9 | May 21, 2021 18:45 | May 22, 2021 04:15 | 9h 30m | 3,300 | 9,162 |
| 10 | October 1, 2021 11:30 | October 1, 2021 14:15 | 2h 45m | 3,213 | 8,836 |
Outage episodes by size in 2021: 104 reached 100+ customers, 24 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 Coconino County reported on EIA Form 861 for 2021, 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 | 2021 | 1.8 hrs | 1.02 | 87 min | 0.89 |
| Garkane Energy Coop, Inc | 2021 | 2.4 hrs | - | 2.4 hrs | - |
| Mohave Electric Cooperative, Inc. | 2021 | 2.0 hrs | - | 1.6 hrs | - |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Navajo Tribal Utility Authority | - | - | - | - | - |
| City of Fredonia - (AZ) | - | - | - | - | - |
| City of Williams - AZ | - | - | - | - | - |
| Page Utility Enterprises | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 91% of Arizona's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 138,090 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. Coconino County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Coconino County, AZ annual power outage report, 2021, 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/2021/arizona/coconino-county