County annual report · FIPS 04012
2021 La Paz County, AZ Power Outage Report
In 2021, customers in La Paz County, AZ went without power for an average of 3.0 hours, a total of 25K customer-hours (Arizona average 1.9 hours). That ranks 4th worst of 13 Arizona counties and 1837th 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 La Paz 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 | August 11, 2021 01:45 | August 11, 2021 05:30 | 3h 45m | 2,403 | 4,939 |
| 2 | August 13, 2021 03:15 | August 13, 2021 04:30 | 1h 15m | 1,608 | 421 |
| 3 | January 20, 2021 18:00 | January 20, 2021 18:15 | 15m | 1,603 | 401 |
| 4 | August 10, 2021 01:00 | August 10, 2021 01:15 | 15m | 1,555 | 389 |
| 5 | July 21, 2021 22:15 | July 22, 2021 04:45 | 6h 30m | 1,380 | 1,616 |
| 6 | October 5, 2021 16:30 | October 5, 2021 19:30 | 3h | 1,280 | 3,840 |
| 7 | July 15, 2021 04:45 | July 15, 2021 10:15 | 5h 30m | 1,275 | 2,174 |
| 8 | May 25, 2021 14:15 | May 26, 2021 01:15 | 11h | 862 | 962 |
| 9 | January 13, 2021 18:45 | January 13, 2021 21:00 | 2h 15m | 645 | 1,449 |
| 10 | August 16, 2021 08:45 | August 16, 2021 10:45 | 2h | 574 | 582 |
Outage episodes by size in 2021: 22 reached 100+ customers, 7 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 La Paz 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 |
|---|---|---|---|---|---|
| Southern California Edison Co | 2021 | 3.0 hrs | 1.11 | 1.7 hrs | 0.96 |
| Arizona Public Service Co | 2021 | 1.8 hrs | 1.02 | 87 min | 0.89 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Colorado River Indian Irr Proj | - | - | - | - | - |
| McMullen Valley Water C&D Dist | - | - | - | - | - |
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 ÷ 8,403 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. La Paz County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), La Paz 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/la-paz-county