County annual report · FIPS 08017
2018 Cheyenne County, CO Power Outage Report
In 2018, customers in Cheyenne County, CO went without power for an average of 5.7 hours, a total of 8,016 customer-hours (Colorado average 1.6 hours). That ranks 5th worst of 49 Colorado counties and 952nd of 2,798 nationally.
Compared with CO, the US and 2017
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Cheyenne County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 9, 2018 17:30 | April 10, 2018 17:00 | 23h 30m | 369 | 1,034 |
| 2 | February 7, 2018 16:45 | February 7, 2018 19:30 | 2h 45m | 367 | 827 |
| 3 | May 10, 2018 20:00 | May 10, 2018 20:30 | 30m | 367 | 184 |
| 4 | January 31, 2018 16:45 | January 31, 2018 18:45 | 2h | 364 | 728 |
| 5 | September 26, 2018 16:45 | September 26, 2018 19:15 | 2h 30m | 267 | 601 |
| 6 | September 19, 2018 14:45 | September 20, 2018 14:30 | 23h 45m | 169 | 71 |
| 7 | August 2, 2018 05:15 | August 2, 2018 13:30 | 8h 15m | 93 | 744 |
| 8 | May 19, 2018 07:00 | May 24, 2018 23:15 | 5d 16h | 71 | 295 |
| 9 | October 25, 2018 22:45 | November 10, 2018 11:45 | 15d 13h | 71 | 567 |
| 10 | November 29, 2018 21:30 | November 29, 2018 23:15 | 1h 45m | 49 | 86 |
Outage episodes by size in 2018: 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 2018, 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 | 2018 | 78 min | 1.29 | 78 min | 1.29 |
| 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 88% of Colorado's customers in 2018; 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, 2018, 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/2018/colorado/cheyenne-county