County annual report · FIPS 08027
2017 Custer County, CO Power Outage Report
In 2017, customers in Custer County, CO went without power for an average of 2.6 hours, a total of 7,705 customer-hours (Colorado average 1.5 hours). That ranks 15th worst of 48 Colorado counties and 1438th of 2,786 nationally.
Compared with CO, the US and 2016
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Custer County, 2017
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 13, 2017 21:30 | July 13, 2017 21:45 | 15m | 1,490 | 373 |
| 2 | February 16, 2017 00:45 | February 16, 2017 04:45 | 4h | 1,219 | 4,876 |
| 3 | April 4, 2017 10:15 | April 4, 2017 20:15 | 10h | 248 | 2,427 |
| 4 | July 13, 2017 23:45 | July 14, 2017 00:30 | 45m | 21 | 16 |
| 5 | May 4, 2017 18:00 | May 4, 2017 19:30 | 1h 30m | 2 | 3 |
| 6 | August 21, 2017 19:30 | August 21, 2017 20:00 | 30m | 2 | 1 |
| 7 | November 29, 2017 17:00 | November 29, 2017 18:15 | 1h 15m | 1 | 1 |
| 8 | December 4, 2017 17:15 | December 4, 2017 17:30 | 15m | 1 | 0 |
| 9 | December 12, 2017 20:30 | December 12, 2017 22:30 | 2h | 1 | 2 |
| 10 | December 27, 2017 18:45 | December 28, 2017 00:45 | 6h | 1 | 6 |
Outage episodes by size in 2017: 3 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 2017, 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 | 2017 | 1.8 hrs | 1.01 | 84 min | 0.92 |
| Black Hills Colorado Electric, LLC | 2017 | 6.9 hrs | 4.78 | 1.6 hrs | 1.41 |
| Sangre De Cristo Elec Assn Inc | 2017 | 7.5 hrs | 2.06 | 4.4 hrs | 1.74 |
| 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 2017; 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, 2017, 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/2017/colorado/custer-county