County annual report · FIPS 16083
2019 Twin Falls County, ID Power Outage Report
In 2019, customers in Twin Falls County, ID went without power for an average of 1.0 hours, a total of 46K customer-hours (Idaho average 2.2 hours). That ranks 41st worst of 44 Idaho counties and 2492nd of 2,945 nationally.
Compared with ID, the US and 2018
Coverage line is EAGLE-I's share of Idaho customers tracked each year.
Biggest outages in Twin Falls County, 2019
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 4, 2019 18:00 | March 4, 2019 18:15 | 15m | 2,020 | 505 |
| 2 | March 12, 2019 23:15 | March 12, 2019 23:30 | 15m | 2,013 | 503 |
| 3 | May 9, 2019 17:30 | May 9, 2019 18:00 | 30m | 1,638 | 819 |
| 4 | July 5, 2019 14:45 | July 5, 2019 16:30 | 1h 45m | 1,610 | 893 |
| 5 | December 11, 2019 19:30 | December 11, 2019 22:30 | 3h | 1,373 | 2,397 |
| 6 | October 19, 2019 19:00 | October 20, 2019 10:15 | 15h 15m | 1,238 | 6,038 |
| 7 | July 16, 2019 23:45 | July 17, 2019 01:45 | 2h | 878 | 401 |
| 8 | May 14, 2019 19:15 | May 14, 2019 19:45 | 30m | 761 | 381 |
| 9 | February 13, 2019 17:00 | February 13, 2019 17:45 | 45m | 613 | 438 |
| 10 | September 30, 2019 12:00 | September 30, 2019 14:45 | 2h 45m | 594 | 1,566 |
Outage episodes by size in 2019: 64 reached 100+ customers, 6 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 2019, 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 | 2018 | 2.3 hrs | 1.01 | 2.3 hrs | 1.00 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 92% of Idaho's customers in 2019; 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, 2019, 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/2019/idaho/twin-falls-county