County annual report · FIPS 55019
2015 Clark County, WI Power Outage Report
In 2015, customers in Clark County, WI went without power for an average of 1.7 hours, a total of 27K customer-hours (Wisconsin average 1.5 hours). That ranks 34th worst of 71 Wisconsin counties and 1392nd 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 Clark 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 | May 13, 2015 20:00 | May 13, 2015 22:15 | 2h 15m | 1,751 | 1,657 |
| 2 | November 6, 2015 15:45 | November 7, 2015 00:45 | 9h | 1,731 | 12K |
| 3 | August 10, 2015 06:45 | August 10, 2015 07:30 | 45m | 1,126 | 563 |
| 4 | July 13, 2015 06:15 | July 14, 2015 01:15 | 19h | 1,077 | 8,681 |
| 5 | November 12, 2015 20:00 | November 12, 2015 20:30 | 30m | 187 | 94 |
| 6 | June 22, 2015 16:30 | June 22, 2015 22:30 | 6h | 158 | 267 |
| 7 | September 7, 2015 03:00 | September 7, 2015 06:00 | 3h | 151 | 403 |
| 8 | December 28, 2015 17:30 | December 28, 2015 18:30 | 1h | 88 | 78 |
| 9 | October 9, 2015 12:15 | October 9, 2015 14:30 | 2h 15m | 73 | 164 |
| 10 | September 1, 2015 00:15 | September 1, 2015 03:30 | 3h 15m | 68 | 221 |
Outage episodes by size in 2015: 7 reached 100+ customers, 4 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 Clark 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 |
|---|---|---|---|---|---|
| Northern States Power Co | 2015 | 2.4 hrs | 0.90 | 2.0 hrs | 0.82 |
| Taylor Electric Coop - (WI) | 2015 | 1.9 hrs | - | 81 min | - |
| City of Marshfield - (WI) | 2015 | 15 min | 0.22 | 5 min | 0.16 |
| Eau Claire Electric Coop | - | - | - | - | - |
| Clark Electric Coop - (WI) | - | - | - | - | - |
| Jackson Electric Coop, Inc - (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 ÷ 15,996 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. Clark County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Clark 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/clark-county