County annual report · FIPS 08027
2015 Custer County, CO Power Outage Report
In 2015, customers in Custer County, CO went without power for an average of 3.5 hours, a total of 10K customer-hours (Colorado average 1.2 hours). That ranks 5th worst of 33 Colorado counties and 794th of 2,484 nationally.
Compared with CO, the US
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Custer 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 | November 27, 2015 16:30 | November 27, 2015 21:30 | 5h | 1,444 | 7,220 |
| 2 | November 30, 2015 01:30 | November 30, 2015 03:15 | 1h 45m | 1,444 | 2,527 |
| 3 | June 28, 2015 22:30 | June 28, 2015 23:45 | 1h 15m | 237 | 296 |
| 4 | October 3, 2015 22:15 | October 4, 2015 01:15 | 3h | 102 | 306 |
| 5 | August 26, 2015 00:30 | August 26, 2015 00:45 | 15m | 9 | 2 |
| 6 | September 8, 2015 19:00 | September 8, 2015 20:15 | 1h 15m | 8 | 9 |
| 7 | June 15, 2015 16:15 | June 15, 2015 17:45 | 1h 30m | 4 | 5 |
| 8 | August 8, 2015 13:15 | August 8, 2015 13:30 | 15m | 4 | 1 |
| 9 | August 16, 2015 20:00 | August 16, 2015 20:15 | 15m | 4 | 1 |
| 10 | July 24, 2015 15:15 | July 24, 2015 15:30 | 15m | 3 | 1 |
Outage episodes by size in 2015: 4 reached 100+ customers, 2 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 Custer 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 |
|---|---|---|---|---|---|
| Public Service Co of Colorado | 2015 | 1.6 hrs | 0.98 | 88 min | 0.95 |
| Black Hills Colorado Electric, LLC | 2015 | 1.9 hrs | 1.95 | 82 min | 1.26 |
| Sangre De Cristo Elec Assn Inc | 2015 | 6.0 hrs | 1.60 | 4.4 hrs | 1.34 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| San Isabel Electric Assn, Inc | - | - | - | - | - |
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 Colorado's customers in 2015; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 2,930 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. Custer County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Custer County, CO 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/colorado/custer-county