County annual report · FIPS 16001
2017 Ada County, ID Power Outage Report
In 2017, customers in Ada County, ID went without power for an average of 0.9 hours, a total of 221K customer-hours (Idaho average 3.0 hours). That ranks 36th worst of 44 Idaho counties and 2110th 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 Ada 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 | September 29, 2017 20:15 | September 30, 2017 01:00 | 4h 45m | 7,013 | 1,903 |
| 2 | January 19, 2017 20:30 | January 19, 2017 21:15 | 45m | 6,739 | 3,974 |
| 3 | February 28, 2017 16:15 | February 28, 2017 17:45 | 1h 30m | 6,691 | 4,912 |
| 4 | August 25, 2017 01:45 | August 25, 2017 02:45 | 1h | 4,824 | 3,420 |
| 5 | July 12, 2017 12:15 | July 12, 2017 14:00 | 1h 45m | 4,514 | 7,755 |
| 6 | June 2, 2017 11:15 | June 13, 2017 20:00 | 11d 8h | 4,249 | 35K |
| 7 | February 14, 2017 18:15 | February 14, 2017 19:00 | 45m | 3,817 | 2,863 |
| 8 | August 30, 2017 23:00 | August 31, 2017 11:00 | 12h | 3,527 | 6,681 |
| 9 | August 24, 2017 02:00 | August 24, 2017 04:15 | 2h 15m | 3,463 | 5,053 |
| 10 | March 16, 2017 07:15 | March 16, 2017 12:15 | 5h | 3,377 | 3,733 |
Outage episodes by size in 2017: 152 reached 100+ customers, 35 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 Ada 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 ÷ 256,537 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. Ada County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Ada 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/ada-county