County annual report · FIPS 16061
2021 Lewis County, ID Power Outage Report
In 2021, customers in Lewis County, ID went without power for an average of 3.0 hours, a total of 5,439 customer-hours (Idaho average 5.7 hours). That ranks 30th worst of 43 Idaho counties and 1838th of 2,974 nationally.
Compared with ID, the US and 2020
Coverage line is EAGLE-I's share of Idaho customers tracked each year.
Biggest outages in Lewis County, 2021
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 1, 2021 05:30 | July 1, 2021 07:00 | 1h 30m | 631 | 916 |
| 2 | August 22, 2021 10:30 | August 22, 2021 13:00 | 2h 30m | 244 | 610 |
| 3 | December 14, 2021 11:00 | December 15, 2021 09:15 | 22h 15m | 112 | 288 |
| 4 | June 28, 2021 14:30 | June 28, 2021 14:45 | 15m | 81 | 20 |
| 5 | March 29, 2021 04:45 | March 30, 2021 01:30 | 20h 45m | 76 | 889 |
| 6 | January 13, 2021 23:45 | January 14, 2021 02:30 | 2h 45m | 57 | 83 |
| 7 | November 18, 2021 00:45 | November 18, 2021 04:00 | 3h 15m | 47 | 97 |
| 8 | May 31, 2021 03:15 | May 31, 2021 04:45 | 1h 30m | 45 | 68 |
| 9 | August 6, 2021 00:45 | August 6, 2021 14:00 | 13h 15m | 43 | 403 |
| 10 | August 1, 2021 10:15 | August 1, 2021 10:30 | 15m | 41 | 10 |
Outage episodes by size in 2021: 3 reached 100+ customers, 0 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 Lewis County reported on EIA Form 861 for 2021, 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 |
|---|---|---|---|---|---|
| Avista Corp | 2021 | 16.1 hrs | 2.31 | 2.9 hrs | 1.29 |
| Clearwater Power Company | 2018 | 16.6 hrs | 3.16 | 12.0 hrs | 2.91 |
| Idaho County L&P Coop Assn, 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 90% of Idaho's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 1,808 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. Lewis County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Lewis County, ID annual power outage report, 2021, 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/2021/idaho/lewis-county