County annual report · FIPS 16001
2020 Ada County, ID Power Outage Report
In 2020, customers in Ada County, ID went without power for an average of 1.1 hours, a total of 294K customer-hours (Idaho average 5.1 hours). That ranks 42nd worst of 44 Idaho counties and 2606th 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 Ada 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 19:30 | January 16, 2020 23:45 | 4h 15m | 29,618 | 68K |
| 2 | June 6, 2020 03:30 | June 6, 2020 17:30 | 14h | 12,994 | 30K |
| 3 | April 30, 2020 19:45 | April 30, 2020 21:00 | 1h 15m | 11,885 | 5,040 |
| 4 | November 24, 2020 15:45 | November 24, 2020 22:00 | 6h 15m | 7,389 | 3,749 |
| 5 | November 18, 2020 23:45 | November 19, 2020 02:00 | 2h 15m | 7,241 | 3,634 |
| 6 | April 24, 2020 14:45 | April 24, 2020 15:45 | 1h | 6,702 | 1,774 |
| 7 | January 23, 2020 10:45 | January 23, 2020 11:15 | 30m | 5,805 | 2,903 |
| 8 | April 23, 2020 17:45 | April 23, 2020 18:30 | 45m | 5,656 | 3,520 |
| 9 | September 28, 2020 13:30 | September 28, 2020 16:00 | 2h 30m | 5,004 | 1,296 |
| 10 | June 13, 2020 13:45 | June 13, 2020 22:00 | 8h 15m | 4,791 | 4,708 |
Outage episodes by size in 2020: 149 reached 100+ customers, 43 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 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 |
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 ÷ 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, 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/ada-county