County annual report · FIPS 16083
2023 Twin Falls County, ID Power Outage Report
In 2023, customers in Twin Falls County, ID went without power for an average of 1.9 hours, a total of 89K customer-hours (Idaho average 2.4 hours). That ranks 33rd worst of 43 Idaho counties and 2314th 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 Twin Falls 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 | March 10, 2023 12:45 | March 11, 2023 07:00 | 18h 15m | 9,203 | 21K |
| 2 | December 7, 2023 10:15 | December 7, 2023 11:45 | 1h 30m | 3,954 | 5,808 |
| 3 | June 28, 2023 21:15 | June 28, 2023 21:30 | 15m | 2,964 | 741 |
| 4 | July 18, 2023 22:45 | July 18, 2023 23:00 | 15m | 2,736 | 684 |
| 5 | June 12, 2023 14:00 | June 12, 2023 16:45 | 2h 45m | 2,505 | 757 |
| 6 | December 2, 2023 02:15 | December 2, 2023 09:15 | 7h | 2,276 | 8,337 |
| 7 | December 27, 2023 19:15 | December 27, 2023 22:00 | 2h 45m | 1,878 | 4,433 |
| 8 | February 18, 2023 06:15 | February 18, 2023 07:45 | 1h 30m | 1,737 | 2,433 |
| 9 | November 29, 2023 18:00 | November 29, 2023 18:15 | 15m | 1,112 | 278 |
| 10 | April 16, 2023 01:45 | April 16, 2023 02:45 | 1h | 849 | 849 |
Outage episodes by size in 2023: 66 reached 100+ customers, 9 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 Twin Falls 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 |
|---|---|---|---|---|---|
| Idaho Power Co | 2023 | 2.5 hrs | 1.21 | 2.4 hrs | 1.16 |
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 ÷ 46,267 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. Twin Falls County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Twin Falls 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/twin-falls-county