County annual report · FIPS 16031
2020 Cassia County, ID Power Outage Report
In 2020, customers in Cassia County, ID went without power for an average of 1.4 hours, a total of 21K customer-hours (Idaho average 5.1 hours). That ranks 40th worst of 44 Idaho counties and 2491st of 3,019 nationally.
Compared with ID, the US and 2019
Coverage line is EAGLE-I's share of Idaho customers tracked each year.
Biggest outages in Cassia County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 16, 2020 20:00 | January 16, 2020 20:15 | 15m | 1,604 | 401 |
| 2 | August 26, 2020 00:00 | August 26, 2020 07:45 | 7h 45m | 1,397 | 6,074 |
| 3 | January 3, 2020 20:00 | January 3, 2020 22:30 | 2h 30m | 1,373 | 2,092 |
| 4 | November 18, 2020 22:30 | November 19, 2020 01:15 | 2h 45m | 1,127 | 2,616 |
| 5 | May 1, 2020 06:45 | May 1, 2020 10:15 | 3h 30m | 802 | 2,704 |
| 6 | February 24, 2020 17:00 | February 24, 2020 17:30 | 30m | 342 | 142 |
| 7 | November 13, 2020 22:30 | November 14, 2020 01:15 | 2h 45m | 323 | 473 |
| 8 | May 31, 2020 00:30 | May 31, 2020 20:30 | 20h | 264 | 1,001 |
| 9 | January 5, 2020 06:00 | January 5, 2020 07:00 | 1h | 203 | 102 |
| 10 | November 17, 2020 23:15 | November 18, 2020 03:45 | 4h 30m | 198 | 362 |
Outage episodes by size in 2020: 15 reached 100+ customers, 4 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 Cassia County reported on EIA Form 861 for 2020, 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 | 2020 | 3.3 hrs | 1.10 | 2.7 hrs | 1.00 |
| Raft Rural Elec Coop Inc | - | - | - | - | - |
| City of Burley - (ID) | - | - | - | - | - |
| East End Mutual Elec Co Ltd | - | - | - | - | - |
| United Electric Co-op, Inc - (ID) | - | - | - | - | - |
| City of Albion - (ID) | - | - | - | - | - |
| City of Declo - (ID) | - | - | - | - | - |
| South Side Electric, Inc | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 95% of Idaho's customers in 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 14,726 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. Cassia County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Cassia County, ID annual power outage report, 2020, 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/2020/idaho/cassia-county