County annual report · FIPS 55011
2015 Buffalo County, WI Power Outage Report
In 2015, customers in Buffalo County, WI went without power for an average of 1.9 hours, a total of 12K customer-hours (Wisconsin average 1.5 hours). That ranks 28th worst of 71 Wisconsin counties and 1257th 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 Buffalo 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 | July 18, 2015 07:30 | July 18, 2015 21:00 | 13h 30m | 953 | 6,825 |
| 2 | July 18, 2015 22:15 | July 19, 2015 01:45 | 3h 30m | 508 | 1,479 |
| 3 | September 6, 2015 21:15 | September 6, 2015 23:30 | 2h 15m | 260 | 520 |
| 4 | October 13, 2015 20:30 | October 13, 2015 22:00 | 1h 30m | 260 | 262 |
| 5 | July 17, 2015 11:00 | July 17, 2015 16:45 | 5h 45m | 256 | 1,278 |
| 6 | June 10, 2015 22:45 | June 11, 2015 01:15 | 2h 30m | 93 | 195 |
| 7 | September 7, 2015 02:00 | September 7, 2015 06:00 | 4h | 79 | 218 |
| 8 | May 21, 2015 15:30 | May 21, 2015 16:30 | 1h | 72 | 36 |
| 9 | August 19, 2015 12:45 | August 19, 2015 13:45 | 1h | 68 | 56 |
| 10 | July 6, 2015 14:00 | July 6, 2015 15:15 | 1h 15m | 36 | 19 |
Outage episodes by size in 2015: 5 reached 100+ customers, 0 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 Buffalo 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 |
| Riverland Energy Cooperative | 2015 | 1.9 hrs | 0.92 | 1.7 hrs | 0.84 |
| Eau Claire Electric Coop | - | - | - | - | - |
| Pierce-Pepin Coop Services | - | - | - | - | - |
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 ÷ 5,936 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. Buffalo County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Buffalo 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/buffalo-county