County annual report · FIPS 19119
2018 Lyon County, IA Power Outage Report
In 2018, customers in Lyon County, IA went without power for an average of 1.3 hours, a total of 6,791 customer-hours (Iowa average 2.2 hours). That ranks 75th worst of 99 Iowa counties and 2167th of 2,798 nationally.
Compared with IA, the US and 2017
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Lyon 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 | August 5, 2018 08:30 | August 5, 2018 11:00 | 2h 30m | 670 | 1,342 |
| 2 | April 8, 2018 23:15 | April 9, 2018 00:30 | 1h 15m | 659 | 823 |
| 3 | April 13, 2018 09:30 | April 14, 2018 00:45 | 15h 15m | 514 | 2,090 |
| 4 | March 24, 2018 16:00 | March 24, 2018 18:30 | 2h 30m | 468 | 478 |
| 5 | August 3, 2018 18:30 | August 3, 2018 19:30 | 1h | 458 | 230 |
| 6 | April 17, 2018 18:15 | April 17, 2018 18:30 | 15m | 156 | 39 |
| 7 | May 3, 2018 17:30 | May 4, 2018 00:00 | 6h 30m | 156 | 1,014 |
| 8 | June 9, 2018 00:45 | June 9, 2018 01:45 | 1h | 156 | 156 |
| 9 | March 24, 2018 11:45 | March 24, 2018 13:30 | 1h 45m | 85 | 114 |
| 10 | March 24, 2018 14:30 | March 24, 2018 15:15 | 45m | 85 | 64 |
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 Lyon 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 |
|---|---|---|---|---|---|
| MidAmerican Energy Co | 2018 | 1.9 hrs | 1.18 | 75 min | 0.96 |
| Nobles Cooperative Electric | 2018 | 4.0 hrs | 1.09 | 4.0 hrs | 1.09 |
| Osceola Electric Coop, Inc | 2018 | 2.4 hrs | 4.21 | 2.4 hrs | 4.21 |
| Lyon Rural Electric Coop | 2018 | 34 min | 0.38 | 34 min | 0.38 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Interstate Power and Light Co | - | - | - | - | - |
| North West Rural Electric Coop | - | - | - | - | - |
| City of Larchwood - (IA) | - | - | - | - | - |
| Rock Rapids Municipal Utility | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 89% of Iowa's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 5,090 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. Lyon County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Lyon County, IA 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/iowa/lyon-county