County annual report · FIPS 56021
2019 Laramie County, WY Power Outage Report
In 2019, customers in Laramie County, WY went without power for an average of 1.3 hours, a total of 69K customer-hours (Wyoming average 1.3 hours). That ranks 11th worst of 22 Wyoming counties and 2370th of 2,945 nationally.
Compared with WY, the US and 2018
Coverage line is EAGLE-I's share of Wyoming customers tracked each year.
Biggest outages in Laramie County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 31, 2019 13:15 | September 1, 2019 01:15 | 12h | 5,756 | 13K |
| 2 | April 3, 2019 21:00 | April 3, 2019 21:15 | 15m | 4,527 | 1,132 |
| 3 | April 20, 2019 13:45 | April 21, 2019 05:00 | 15h 15m | 3,022 | 13K |
| 4 | August 15, 2019 17:15 | August 15, 2019 20:45 | 3h 30m | 2,028 | 1,021 |
| 5 | March 23, 2019 08:15 | March 23, 2019 10:15 | 2h | 1,890 | 1,418 |
| 6 | March 13, 2019 14:15 | March 13, 2019 14:45 | 30m | 1,626 | 813 |
| 7 | July 11, 2019 14:00 | July 11, 2019 20:15 | 6h 15m | 990 | 990 |
| 8 | September 25, 2019 13:30 | September 26, 2019 00:30 | 11h | 856 | 776 |
| 9 | May 29, 2019 21:45 | May 29, 2019 22:30 | 45m | 827 | 620 |
| 10 | September 11, 2019 21:45 | September 12, 2019 03:45 | 6h | 708 | 716 |
Outage episodes by size in 2019: 59 reached 100+ customers, 6 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 2019, 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 68% of Wyoming's customers in 2019; 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, 2019, 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/2019/wyoming/laramie-county