County annual report · FIPS 04025
2018 Yavapai County, AZ Power Outage Report
In 2018, customers in Yavapai County, AZ went without power for an average of 1.9 hours, a total of 460K customer-hours (Arizona average 1.9 hours). That ranks 8th worst of 13 Arizona counties and 1922nd of 2,798 nationally.
Compared with AZ, the US and 2017
Coverage line is EAGLE-I's share of Arizona customers tracked each year.
Biggest outages in Yavapai County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 27, 2018 21:00 | July 29, 2018 00:15 | 1d 3h | 4,505 | 21K |
| 2 | July 26, 2018 22:15 | July 27, 2018 17:45 | 19h 30m | 4,308 | 19K |
| 3 | March 30, 2018 23:00 | April 6, 2018 08:00 | 6d 9h | 3,188 | 127K |
| 4 | August 3, 2018 05:45 | August 3, 2018 22:15 | 16h 30m | 3,102 | 7,132 |
| 5 | August 2, 2018 20:15 | August 2, 2018 23:30 | 3h 15m | 3,023 | 1,885 |
| 6 | April 28, 2018 01:30 | April 29, 2018 02:15 | 1d | 3,021 | 2,125 |
| 7 | July 12, 2018 02:15 | July 12, 2018 04:00 | 1h 45m | 2,904 | 1,843 |
| 8 | April 12, 2018 01:45 | April 12, 2018 21:30 | 19h 45m | 2,656 | 1,693 |
| 9 | July 1, 2018 22:30 | July 2, 2018 21:45 | 23h 15m | 2,650 | 2,968 |
| 10 | September 26, 2018 15:15 | September 26, 2018 20:15 | 5h | 2,588 | 2,432 |
Outage episodes by size in 2018: 135 reached 100+ customers, 29 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 Yavapai County reported on EIA Form 861 for 2018, 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 | 2018 | 2.6 hrs | 1.08 | 86 min | 0.84 |
| Mohave Electric Cooperative, Inc. | 2018 | 9.4 hrs | - | 8.7 hrs | - |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 87% of Arizona's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 246,408 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. Yavapai County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Yavapai County, AZ annual power outage report, 2018, 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/2018/arizona/yavapai-county