County annual report · FIPS 16003
2021 Adams County, ID Power Outage Report
In 2021, customers in Adams County, ID went without power for an average of 12.3 hours, a total of 26K customer-hours (Idaho average 5.7 hours). That ranks 10th worst of 43 Idaho counties and 665th of 2,974 nationally.
Compared with ID, the US and 2020
Coverage line is EAGLE-I's share of Idaho customers tracked each year.
Biggest outages in Adams 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 | November 13, 2021 19:00 | November 13, 2021 20:00 | 1h | 2,724 | 2,724 |
| 2 | June 15, 2021 00:00 | June 15, 2021 11:30 | 11h 30m | 1,732 | 7,282 |
| 3 | April 3, 2021 06:15 | April 3, 2021 08:30 | 2h 15m | 1,021 | 1,061 |
| 4 | January 3, 2021 14:00 | January 4, 2021 01:30 | 11h 30m | 737 | 3,495 |
| 5 | March 4, 2021 03:30 | March 4, 2021 16:15 | 12h 45m | 730 | 4,524 |
| 6 | March 23, 2021 02:00 | March 23, 2021 04:15 | 2h 15m | 428 | 963 |
| 7 | August 26, 2021 17:45 | August 26, 2021 18:00 | 15m | 415 | 104 |
| 8 | March 4, 2021 20:45 | March 4, 2021 21:30 | 45m | 292 | 168 |
| 9 | August 6, 2021 20:30 | August 6, 2021 21:15 | 45m | 283 | 212 |
| 10 | December 12, 2021 09:30 | December 13, 2021 02:30 | 17h | 229 | 1,708 |
Outage episodes by size in 2021: 16 reached 100+ customers, 3 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 Adams 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 |
|---|---|---|---|---|---|
| Idaho Power Co | 2021 | 3.1 hrs | 1.42 | 2.6 hrs | 1.25 |
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 Idaho's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 2,117 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. Adams County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Adams County, ID 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/idaho/adams-county