County annual report · FIPS 55043
2015 Grant County, WI Power Outage Report
In 2015, customers in Grant County, WI went without power for an average of 18.0 hours, a total of 134K customer-hours (Wisconsin average 1.5 hours). That ranks 2nd worst of 71 Wisconsin counties and 133rd of 2,484 nationally.
Compared with WI, the US
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Grant County, 2015
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 22, 2015 13:45 | June 25, 2015 19:15 | 3d 5h | 7,417 | 123K |
| 2 | September 1, 2015 20:15 | September 1, 2015 22:30 | 2h 15m | 569 | 428 |
| 3 | November 12, 2015 01:00 | November 12, 2015 03:00 | 2h | 542 | 408 |
| 4 | November 6, 2015 02:45 | November 6, 2015 08:00 | 5h 15m | 390 | 808 |
| 5 | September 26, 2015 22:45 | September 27, 2015 00:15 | 1h 30m | 376 | 392 |
| 6 | April 3, 2015 14:15 | April 3, 2015 15:00 | 45m | 287 | 201 |
| 7 | June 15, 2015 15:00 | June 15, 2015 19:15 | 4h 15m | 273 | 71 |
| 8 | September 13, 2015 13:15 | September 13, 2015 17:00 | 3h 45m | 201 | 158 |
| 9 | December 1, 2015 00:45 | December 1, 2015 02:45 | 2h | 200 | 271 |
| 10 | November 19, 2015 19:15 | November 19, 2015 20:15 | 1h | 184 | 138 |
Outage episodes by size in 2015: 12 reached 100+ customers, 1 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 Grant County reported on EIA Form 861 for 2015, 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 | 2015 | 2.1 hrs | 1.63 | 1.8 hrs | 1.38 |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Wisconsin Power & Light Co | - | - | - | - | - |
| Scenic Rivers Energy Coop | - | - | - | - | - |
| Village of Muscoda - (WI) | - | - | - | - | - |
| City of Cuba City | - | - | - | - | - |
| Village of Hazel Green - (WI) | - | - | - | - | - |
| City of Boscobel - (WI) | - | - | - | - | - |
| City of Fennimore - (WI) | - | - | - | - | - |
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 2015; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 7,428 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. Grant County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Grant County, WI annual power outage report, 2015, 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/2015/wisconsin/grant-county