County annual report · FIPS 16001
2023 Ada County, ID Power Outage Report
In 2023, customers in Ada County, ID went without power for an average of 1.2 hours, a total of 305K customer-hours (Idaho average 2.4 hours). That ranks 39th worst of 43 Idaho counties and 2600th of 2,977 nationally.
Compared with ID, the US and 2022
Coverage line is EAGLE-I's share of Idaho customers tracked each year.
Biggest outages in Ada County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 7, 2023 15:30 | June 8, 2023 12:00 | 20h 30m | 11,098 | 20K |
| 2 | October 18, 2023 03:00 | October 18, 2023 05:15 | 2h 15m | 7,891 | 15K |
| 3 | May 17, 2023 14:15 | May 17, 2023 17:45 | 3h 30m | 6,443 | 1,752 |
| 4 | August 14, 2023 23:45 | August 15, 2023 00:45 | 1h | 5,206 | 4,797 |
| 5 | September 7, 2023 15:30 | September 7, 2023 18:45 | 3h 15m | 5,111 | 6,411 |
| 6 | December 13, 2023 17:45 | December 13, 2023 18:15 | 30m | 4,988 | 2,494 |
| 7 | November 28, 2023 17:15 | November 28, 2023 17:30 | 15m | 4,987 | 1,247 |
| 8 | May 9, 2023 01:00 | May 9, 2023 04:45 | 3h 45m | 4,833 | 6,525 |
| 9 | April 1, 2023 20:15 | April 2, 2023 08:00 | 11h 45m | 4,412 | 15K |
| 10 | January 21, 2023 09:00 | January 21, 2023 14:45 | 5h 45m | 3,851 | 3,527 |
Outage episodes by size in 2023: 168 reached 100+ customers, 53 reached 1,000+ customers, 1 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 2023, 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 | 2023 | 2.5 hrs | 1.21 | 2.4 hrs | 1.16 |
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 2023; 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, 2023, 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/2023/idaho/ada-county