County annual report · FIPS 16051
2023 Jefferson County, ID Power Outage Report
In 2023, customers in Jefferson County, ID went without power for an average of 4.9 hours, a total of 44K customer-hours (Idaho average 2.4 hours). That ranks 18th worst of 43 Idaho counties and 1491st of 2,977 nationally.
Compared with ID, the US and 2022
Coverage line is EAGLE-I's share of Idaho customers tracked each year.
Biggest outages in Jefferson County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 2, 2023 02:30 | July 2, 2023 03:45 | 1h 15m | 2,992 | 1,497 |
| 2 | February 18, 2023 23:30 | February 19, 2023 00:45 | 1h 15m | 2,598 | 2,112 |
| 3 | October 25, 2023 11:00 | October 25, 2023 11:45 | 45m | 2,297 | 576 |
| 4 | January 30, 2023 17:00 | January 30, 2023 19:15 | 2h 15m | 2,286 | 574 |
| 5 | January 3, 2023 17:30 | January 3, 2023 18:00 | 30m | 2,056 | 1,028 |
| 6 | December 23, 2023 11:30 | December 23, 2023 23:15 | 11h 45m | 1,907 | 3,116 |
| 7 | June 16, 2023 18:30 | June 16, 2023 19:45 | 1h 15m | 1,597 | 1,599 |
| 8 | August 30, 2023 01:30 | August 31, 2023 03:15 | 1d 1h | 1,033 | 4,640 |
| 9 | March 15, 2023 03:15 | March 15, 2023 03:30 | 15m | 820 | 205 |
| 10 | October 2, 2023 15:15 | October 2, 2023 18:45 | 3h 30m | 815 | 715 |
Outage episodes by size in 2023: 43 reached 100+ customers, 8 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 Jefferson County reported on EIA Form 861 for 2023, 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 |
|---|---|---|---|---|---|
| PacifiCorp | 2023 | 8.2 hrs | 1.42 | 1.9 hrs | 0.99 |
| Fall River Rural Elec Coop Inc | 2023 | 12 min | 0.11 | 11 min | 0.11 |
| Bonneville Power Administration | - | - | - | - | - |
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 Idaho's customers in 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 8,995 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. Jefferson County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Jefferson County, ID annual power outage report, 2023, 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/2023/idaho/jefferson-county