County annual report · FIPS 56021
2018 Laramie County, WY Power Outage Report
In 2018, customers in Laramie County, WY went without power for an average of 0.3 hours, a total of 16K customer-hours (Wyoming average 1.2 hours). That ranks 16th worst of 21 Wyoming counties and 2587th of 2,798 nationally.
Compared with WY, the US and 2017
Coverage line is EAGLE-I's share of Wyoming customers tracked each year.
Biggest outages in Laramie 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 | March 16, 2018 16:45 | March 16, 2018 17:15 | 30m | 3,081 | 1,541 |
| 2 | February 13, 2018 20:45 | February 13, 2018 21:00 | 15m | 2,876 | 719 |
| 3 | February 23, 2018 22:30 | February 23, 2018 23:30 | 1h | 652 | 652 |
| 4 | August 22, 2018 15:45 | August 22, 2018 16:45 | 1h | 519 | 221 |
| 5 | July 31, 2018 00:00 | July 31, 2018 01:30 | 1h 30m | 397 | 212 |
| 6 | May 28, 2018 04:30 | May 29, 2018 19:30 | 1d 15h | 388 | 5,933 |
| 7 | May 28, 2018 01:15 | May 28, 2018 02:15 | 1h | 329 | 312 |
| 8 | November 9, 2018 17:00 | November 9, 2018 17:15 | 15m | 326 | 82 |
| 9 | November 21, 2018 18:15 | November 21, 2018 22:15 | 4h | 305 | 80 |
| 10 | May 3, 2018 14:15 | May 3, 2018 20:45 | 6h 30m | 248 | 745 |
Outage episodes by size in 2018: 20 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 Laramie 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 |
|---|---|---|---|---|---|
| Wyrulec Company | 2018 | 3.0 hrs | 1.03 | 71 min | 0.72 |
| Cheyenne Light Fuel & Power | 2018 | 58 min | 1.43 | 31 min | 0.83 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| High West Energy, Inc | - | - | - | - | - |
| Black Hills Energy | - | - | - | - | - |
| Wheatland Rural Elec Assn, Inc | - | - | - | - | - |
| City of Pine Bluffs - (WY) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 62% of Wyoming's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 52,987 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. Laramie County has data for 2016–2025.
Cite this report
MassOutage (massoutage.com), Laramie County, WY 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/wyoming/laramie-county