County annual report · FIPS 16083
2017 Twin Falls County, ID Power Outage Report
In 2017, customers in Twin Falls County, ID went without power for an average of 2.2 hours, a total of 101K customer-hours (Idaho average 3.0 hours). That ranks 28th worst of 44 Idaho counties and 1576th of 2,786 nationally.
Compared with ID, the US and 2016
Coverage line is EAGLE-I's share of Idaho customers tracked each year.
Biggest outages in Twin Falls County, 2017
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 24, 2017 18:45 | March 24, 2017 21:00 | 2h 15m | 4,523 | 7,531 |
| 2 | July 29, 2017 22:45 | July 30, 2017 02:15 | 3h 30m | 4,277 | 15K |
| 3 | June 5, 2017 02:15 | June 5, 2017 03:15 | 1h | 3,635 | 2,737 |
| 4 | April 8, 2017 17:15 | April 9, 2017 00:30 | 7h 15m | 3,164 | 7,919 |
| 5 | July 19, 2017 20:00 | July 20, 2017 04:45 | 8h 45m | 2,082 | 5,054 |
| 6 | June 2, 2017 17:30 | June 2, 2017 17:45 | 15m | 1,937 | 484 |
| 7 | July 15, 2017 22:30 | July 16, 2017 07:30 | 9h | 1,931 | 4,951 |
| 8 | February 23, 2017 12:15 | February 23, 2017 19:45 | 7h 30m | 1,703 | 11K |
| 9 | September 28, 2017 04:30 | September 28, 2017 05:45 | 1h 15m | 1,612 | 2,015 |
| 10 | April 6, 2017 14:15 | April 6, 2017 15:00 | 45m | 1,172 | 865 |
Outage episodes by size in 2017: 63 reached 100+ customers, 10 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 2017, 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 | 2017 | 3.8 hrs | 1.38 | 3.6 hrs | 1.35 |
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 2017; 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, 2017, 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/2017/idaho/twin-falls-county