County annual report · FIPS 08017
2017 Cheyenne County, CO Power Outage Report
In 2017, customers in Cheyenne County, CO went without power for an average of 7.9 hours, a total of 11K customer-hours (Colorado average 1.5 hours). That ranks 7th worst of 48 Colorado counties and 675th of 2,786 nationally.
Compared with CO, the US
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Cheyenne 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 7, 2017 11:30 | July 25, 2017 13:30 | 18d 2h | 532 | 4,490 |
| 2 | July 28, 2017 02:15 | July 28, 2017 03:30 | 1h 15m | 511 | 511 |
| 3 | September 24, 2017 00:00 | October 4, 2017 22:30 | 10d 22h | 378 | 755 |
| 4 | July 26, 2017 06:00 | July 26, 2017 07:30 | 1h 30m | 370 | 555 |
| 5 | April 4, 2017 16:45 | April 6, 2017 22:30 | 2d 5h | 177 | 384 |
| 6 | May 17, 2017 18:45 | June 2, 2017 07:45 | 15d 13h | 170 | 638 |
| 7 | May 9, 2017 23:15 | May 10, 2017 17:00 | 17h 45m | 77 | 110 |
| 8 | May 6, 2017 01:45 | May 8, 2017 14:45 | 2d 13h | 67 | 394 |
| 9 | June 2, 2017 11:15 | July 6, 2017 22:45 | 34d 11h | 55 | 1,451 |
| 10 | April 13, 2017 14:45 | April 13, 2017 19:45 | 5h | 45 | 26 |
Outage episodes by size in 2017: 6 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 Cheyenne 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 |
|---|---|---|---|---|---|
| Wheatland Electric Coop, Inc | 2017 | 4.7 hrs | 2.74 | 59 min | 1.17 |
| Southeast Colorado Power Assn | - | - | - | - | - |
| K C Electric Association | - | - | - | - | - |
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 ÷ 1,412 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. Cheyenne County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Cheyenne 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/cheyenne-county