County annual report · FIPS 16061
2018 Lewis County, ID Power Outage Report
In 2018, customers in Lewis County, ID went without power for an average of 6.4 hours, a total of 12K customer-hours (Idaho average 2.0 hours). That ranks 12th worst of 44 Idaho counties and 861st of 2,798 nationally.
Compared with ID, the US and 2017
Coverage line is EAGLE-I's share of Idaho customers tracked each year.
Biggest outages in Lewis County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 13, 2018 07:00 | March 13, 2018 08:00 | 1h | 926 | 523 |
| 2 | November 2, 2018 10:15 | November 2, 2018 14:45 | 4h 30m | 624 | 2,082 |
| 3 | December 17, 2018 00:15 | December 17, 2018 03:30 | 3h 15m | 422 | 1,372 |
| 4 | November 27, 2018 06:15 | November 27, 2018 15:30 | 9h 15m | 214 | 1,774 |
| 5 | July 24, 2018 18:30 | July 24, 2018 21:45 | 3h 15m | 195 | 157 |
| 6 | December 30, 2018 11:45 | December 30, 2018 18:00 | 6h 15m | 191 | 1,148 |
| 7 | June 29, 2018 03:45 | June 29, 2018 06:45 | 3h | 108 | 298 |
| 8 | April 7, 2018 18:15 | April 8, 2018 11:30 | 17h 15m | 101 | 479 |
| 9 | May 26, 2018 03:45 | May 26, 2018 13:15 | 9h 30m | 89 | 378 |
| 10 | September 13, 2018 14:15 | September 13, 2018 23:00 | 8h 45m | 56 | 490 |
Outage episodes by size in 2018: 8 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 2018, 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 | 2018 | 2.6 hrs | 0.89 | 2.2 hrs | 0.81 |
| 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 91% of Idaho's customers in 2018; 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, 2018, 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/2018/idaho/lewis-county