County annual report · FIPS 16053
2021 Jerome County, ID Power Outage Report
In 2021, customers in Jerome County, ID went without power for an average of 2.2 hours, a total of 26K customer-hours (Idaho average 5.7 hours). That ranks 35th worst of 43 Idaho counties and 2151st 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 Jerome 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 | December 15, 2021 15:15 | December 15, 2021 15:30 | 15m | 1,910 | 478 |
| 2 | November 13, 2021 16:45 | November 13, 2021 17:45 | 1h | 1,754 | 1,483 |
| 3 | June 26, 2021 12:30 | June 26, 2021 14:30 | 2h | 1,091 | 490 |
| 4 | July 10, 2021 09:45 | July 10, 2021 15:15 | 5h 30m | 893 | 2,988 |
| 5 | December 17, 2021 18:30 | December 17, 2021 19:30 | 1h | 691 | 691 |
| 6 | September 10, 2021 22:15 | September 11, 2021 08:15 | 10h | 585 | 1,986 |
| 7 | September 19, 2021 21:30 | September 20, 2021 02:30 | 5h | 410 | 766 |
| 8 | March 20, 2021 02:30 | March 20, 2021 10:45 | 8h 15m | 401 | 2,939 |
| 9 | July 11, 2021 16:45 | July 11, 2021 17:00 | 15m | 360 | 90 |
| 10 | July 12, 2021 01:30 | July 12, 2021 03:00 | 1h 30m | 360 | 540 |
Outage episodes by size in 2021: 31 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 Jerome 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 ÷ 11,738 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. Jerome County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Jerome 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/jerome-county