County annual report · FIPS 04009
2020 Graham County, AZ Power Outage Report
In 2020, customers in Graham County, AZ went without power for an average of 0.2 hours, a total of 1,412 customer-hours (Arizona average 1.3 hours). That ranks 14th worst of 14 Arizona counties and 2913th of 3,019 nationally.
Compared with AZ, the US
Coverage line is EAGLE-I's share of Arizona customers tracked each year.
Biggest outages in Graham County, 2020
The 7 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 15, 2020 22:30 | April 15, 2020 23:30 | 1h | 70 | 70 |
| 2 | February 16, 2020 14:45 | February 16, 2020 15:30 | 45m | 1 | 1 |
| 3 | June 13, 2020 01:30 | June 13, 2020 01:45 | 15m | 1 | 0 |
| 4 | June 15, 2020 21:30 | June 15, 2020 21:45 | 15m | 1 | 0 |
| 5 | June 18, 2020 01:30 | June 18, 2020 19:15 | 17h 45m | 1 | 18 |
| 6 | June 18, 2020 23:15 | August 13, 2020 00:00 | 55d | 1 | 1,320 |
| 7 | October 19, 2020 00:45 | October 19, 2020 03:15 | 2h 30m | 1 | 3 |
Outage episodes by size in 2020: 0 reached 100+ customers, 0 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 Graham County reported on EIA Form 861 for 2020, 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 | 2020 | 84 min | 0.86 | 79 min | 0.85 |
| Sulphur Springs Valley E C Inc | 2020 | 2.6 hrs | 1.21 | 2.3 hrs | 1.07 |
| Graham County Electric Coop Inc | 2018 | 1.8 hrs | 1.71 | 61 min | 0.71 |
| USBIA-San Carlos Project | - | - | - | - | - |
| Duncan Valley Elec Coop, Inc | - | - | - | - | - |
| City of Safford - (AZ) | - | - | - | - | - |
| Town of Thatcher- (AZ) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 90% of Arizona's customers in 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 7,828 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. Graham County has data for 2020, 2025.
Cite this report
MassOutage (massoutage.com), Graham County, AZ annual power outage report, 2020, 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/2020/arizona/graham-county