County annual report · FIPS 55089
2018 Ozaukee County, WI Power Outage Report
In 2018, customers in Ozaukee County, WI went without power for an average of 3.7 hours, a total of 129K customer-hours (Wisconsin average 1.7 hours). That ranks 15th worst of 71 Wisconsin counties and 1309th of 2,798 nationally.
Compared with WI, the US and 2017
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Ozaukee 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 28, 2018 22:00 | August 30, 2018 23:00 | 2d 1h | 3,472 | 60K |
| 2 | May 10, 2018 07:45 | May 10, 2018 08:00 | 15m | 3,275 | 819 |
| 3 | July 31, 2018 03:15 | July 31, 2018 06:15 | 3h | 3,070 | 4,605 |
| 4 | July 1, 2018 18:00 | July 2, 2018 22:30 | 1d 4h | 2,944 | 12K |
| 5 | January 13, 2018 15:45 | January 13, 2018 19:30 | 3h 45m | 2,523 | 3,154 |
| 6 | September 6, 2018 15:45 | September 6, 2018 17:45 | 2h | 2,100 | 2,284 |
| 7 | August 26, 2018 23:30 | August 28, 2018 07:00 | 1d 7h | 1,401 | 8,963 |
| 8 | September 21, 2018 08:00 | September 21, 2018 17:30 | 9h 30m | 1,394 | 6,464 |
| 9 | June 11, 2018 20:15 | June 12, 2018 01:00 | 4h 45m | 1,204 | 1,166 |
| 10 | June 30, 2018 23:00 | July 1, 2018 00:45 | 1h 45m | 1,189 | 1,191 |
Outage episodes by size in 2018: 34 reached 100+ customers, 14 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 Ozaukee 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 |
|---|---|---|---|---|---|
| Wisconsin Electric Power Co | 2018 | 2.0 hrs | 0.73 | 70 min | 0.59 |
| Cedarburg Light & Water Comm | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 83% of Wisconsin's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 34,422 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. Ozaukee County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Ozaukee County, WI 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/wisconsin/ozaukee-county