County annual report · FIPS 55079
2024 Milwaukee County, WI Power Outage Report
In 2024, customers in Milwaukee County, WI went without power for an average of 4.3 hours, a total of 2.6M customer-hours (Wisconsin average 4.6 hours). That ranks 28th worst of 72 Wisconsin counties and 1766th of 2,990 nationally.
Compared with WI, the US and 2023
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Milwaukee County, 2024
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 12, 2024 13:15 | January 18, 2024 08:15 | 5d 19h | 59,651 | 1.8M |
| 2 | August 1, 2024 11:00 | August 3, 2024 06:45 | 1d 19h | 17,496 | 62K |
| 3 | April 20, 2024 20:45 | April 21, 2024 07:30 | 10h 45m | 15,851 | 18K |
| 4 | April 16, 2024 09:45 | April 17, 2024 23:30 | 1d 13h | 9,363 | 9,149 |
| 5 | May 7, 2024 19:45 | May 8, 2024 22:30 | 1d 2h | 5,964 | 13K |
| 6 | November 18, 2024 21:15 | November 20, 2024 02:15 | 1d 5h | 5,749 | 17K |
| 7 | August 26, 2024 10:45 | August 29, 2024 06:00 | 2d 19h | 5,455 | 53K |
| 8 | July 7, 2024 18:30 | July 9, 2024 08:00 | 1d 13h | 5,250 | 12K |
| 9 | March 15, 2024 11:45 | March 16, 2024 00:15 | 12h 30m | 5,022 | 4,533 |
| 10 | November 6, 2024 19:30 | November 6, 2024 23:30 | 4h | 4,972 | 1,292 |
Outage episodes by size in 2024: 184 reached 100+ customers, 92 reached 1,000+ customers, 3 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 2024, 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 | 2024 | 4.9 hrs | 1.04 | 1.8 hrs | 0.74 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Wisconsin's customers in 2024; 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, 2024, 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/2024/wisconsin/milwaukee-county