County annual report · FIPS 56021
2020 Laramie County, WY Power Outage Report
In 2020, customers in Laramie County, WY went without power for an average of 2.4 hours, a total of 125K customer-hours (Wyoming average 3.4 hours). That ranks 12th worst of 22 Wyoming counties and 2105th of 3,019 nationally.
Compared with WY, the US and 2019
Coverage line is EAGLE-I's share of Wyoming customers tracked each year.
Biggest outages in Laramie County, 2020
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 14, 2020 12:15 | March 19, 2020 05:15 | 4d 17h | 19,300 | 86K |
| 2 | February 3, 2020 13:45 | February 3, 2020 19:00 | 5h 15m | 2,361 | 1,774 |
| 3 | September 8, 2020 06:15 | September 11, 2020 08:15 | 3d 2h | 1,260 | 1,448 |
| 4 | July 25, 2020 13:15 | July 25, 2020 15:00 | 1h 45m | 720 | 579 |
| 5 | December 26, 2020 10:45 | December 26, 2020 14:30 | 3h 45m | 567 | 1,615 |
| 6 | July 13, 2020 00:45 | July 13, 2020 03:45 | 3h | 547 | 1,624 |
| 7 | April 30, 2020 12:45 | May 1, 2020 17:00 | 1d 4h | 441 | 2,183 |
| 8 | July 1, 2020 12:00 | July 1, 2020 14:00 | 2h | 379 | 304 |
| 9 | January 5, 2020 02:00 | January 5, 2020 04:15 | 2h 15m | 369 | 453 |
| 10 | October 14, 2020 17:00 | October 14, 2020 21:15 | 4h 15m | 362 | 576 |
Outage episodes by size in 2020: 47 reached 100+ customers, 3 reached 1,000+ customers, 1 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 2020, 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 | 2020 | 4.5 hrs | 2.40 | 32 min | 0.51 |
| 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 71% of Wyoming's customers in 2020; 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, 2020, 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/2020/wyoming/laramie-county