County annual report · FIPS 04023
2016 Santa Cruz County, AZ Power Outage Report
In 2016, customers in Santa Cruz County, AZ went without power for an average of 12.9 hours, a total of 17K customer-hours (Arizona average 0.7 hours). That ranks 1st worst of 9 Arizona counties and 261st of 2,391 nationally.
Compared with AZ, the US
Coverage line is EAGLE-I's share of Arizona customers tracked each year.
Biggest outages in Santa Cruz County, 2016
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 9, 2016 23:45 | June 10, 2016 00:15 | 30m | 5,308 | 1,342 |
| 2 | October 1, 2016 01:15 | October 1, 2016 03:15 | 2h | 1,695 | 3,110 |
| 3 | July 28, 2016 01:15 | July 28, 2016 06:30 | 5h 15m | 926 | 2,946 |
| 4 | May 26, 2016 20:30 | May 26, 2016 21:15 | 45m | 846 | 575 |
| 5 | July 22, 2016 09:15 | July 22, 2016 11:45 | 2h 30m | 634 | 1,579 |
| 6 | August 4, 2016 01:15 | August 4, 2016 02:30 | 1h 15m | 634 | 510 |
| 7 | August 2, 2016 17:45 | August 2, 2016 18:45 | 1h | 621 | 621 |
| 8 | July 27, 2016 00:30 | July 27, 2016 03:15 | 2h 45m | 536 | 1,068 |
| 9 | September 1, 2016 02:15 | September 1, 2016 03:30 | 1h 15m | 536 | 552 |
| 10 | October 3, 2016 22:45 | October 4, 2016 00:45 | 2h | 476 | 407 |
Outage episodes by size in 2016: 16 reached 100+ customers, 2 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 Santa Cruz County reported on EIA Form 861 for 2016, 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 | 2016 | 2.0 hrs | 0.91 | 87 min | 0.82 |
| Sulphur Springs Valley E C Inc | 2016 | 1.8 hrs | 0.55 | 1.8 hrs | 0.55 |
| Trico Electric Cooperative Inc | 2016 | 41 min | 0.49 | 41 min | 0.49 |
| UNS Electric, Inc | 2016 | 64 min | 0.85 | 64 min | 0.85 |
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 2016; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 1,340 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. Santa Cruz County has data for 2016–2025.
Cite this report
MassOutage (massoutage.com), Santa Cruz County, AZ annual power outage report, 2016, 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/2016/arizona/santa-cruz-county