County annual report · FIPS 16001
2019 Ada County, ID Power Outage Report
In 2019, customers in Ada County, ID went without power for an average of 1.0 hours, a total of 269K customer-hours (Idaho average 2.2 hours). That ranks 39th worst of 44 Idaho counties and 2472nd 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 Ada 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 | July 12, 2019 12:00 | July 12, 2019 17:30 | 5h 30m | 14,795 | 15K |
| 2 | January 10, 2019 18:45 | January 10, 2019 20:00 | 1h 15m | 14,722 | 5,592 |
| 3 | June 23, 2019 15:45 | June 23, 2019 17:00 | 1h 15m | 13,780 | 10K |
| 4 | March 28, 2019 02:45 | March 28, 2019 04:45 | 2h | 9,134 | 6,866 |
| 5 | November 19, 2019 17:15 | November 19, 2019 23:45 | 6h 30m | 9,052 | 6,184 |
| 6 | September 16, 2019 17:30 | September 16, 2019 17:45 | 15m | 8,314 | 2,079 |
| 7 | October 19, 2019 18:00 | October 20, 2019 17:15 | 23h 15m | 7,537 | 34K |
| 8 | August 20, 2019 19:15 | August 20, 2019 19:30 | 15m | 7,191 | 1,798 |
| 9 | September 6, 2019 03:00 | September 6, 2019 23:30 | 20h 30m | 4,916 | 11K |
| 10 | September 12, 2019 06:30 | September 12, 2019 14:30 | 8h | 4,639 | 3,086 |
Outage episodes by size in 2019: 172 reached 100+ customers, 53 reached 1,000+ customers, 3 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 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 ÷ 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, 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/ada-county