County annual report · FIPS 55079
2019 Milwaukee County, WI Power Outage Report
In 2019, customers in Milwaukee County, WI went without power for an average of 1.5 hours, a total of 886K customer-hours (Wisconsin average 4.4 hours). That ranks 57th worst of 71 Wisconsin counties and 2289th of 2,945 nationally.
Compared with WI, the US and 2018
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Milwaukee County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 27, 2019 11:45 | June 30, 2019 08:15 | 2d 20h | 14,104 | 106K |
| 2 | November 6, 2019 15:45 | November 6, 2019 23:45 | 8h | 11,546 | 13K |
| 3 | July 10, 2019 08:45 | July 11, 2019 09:30 | 1d | 10,838 | 3,722 |
| 4 | August 30, 2019 19:00 | August 30, 2019 21:00 | 2h | 10,561 | 5,282 |
| 5 | June 25, 2019 10:00 | June 26, 2019 06:15 | 20h 15m | 9,352 | 19K |
| 6 | October 21, 2019 13:15 | October 23, 2019 06:15 | 1d 17h | 9,170 | 52K |
| 7 | December 6, 2019 13:45 | December 6, 2019 21:00 | 7h 15m | 8,830 | 2,220 |
| 8 | September 5, 2019 14:30 | September 5, 2019 21:00 | 6h 30m | 8,695 | 5,753 |
| 9 | September 13, 2019 05:15 | September 15, 2019 07:45 | 2d 2h | 7,670 | 45K |
| 10 | November 27, 2019 13:00 | November 29, 2019 08:45 | 1d 19h | 6,002 | 43K |
Outage episodes by size in 2019: 192 reached 100+ customers, 89 reached 1,000+ customers, 4 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 Milwaukee County reported on EIA Form 861 for 2019, 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 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 84% of Wisconsin's customers in 2019; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 594,641 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. Milwaukee County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Milwaukee County, WI annual power outage report, 2019, 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/2019/wisconsin/milwaukee-county