County annual report · FIPS 56031
2021 Platte County, WY Power Outage Report
In 2021, customers in Platte County, WY went without power for an average of - hours, a total of 2,847 customer-hours (Wyoming average 2.2 hours).
Compared with WY, the US and 2020
No loaded years to plot yet.
Coverage line is EAGLE-I's share of Wyoming customers tracked each year.
Biggest outages in Platte County, 2021
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 17, 2021 23:30 | July 18, 2021 01:30 | 2h | 301 | 531 |
| 2 | January 14, 2021 02:00 | January 14, 2021 08:15 | 6h 15m | 295 | 1,717 |
| 3 | August 6, 2021 06:15 | August 6, 2021 10:00 | 3h 45m | 57 | 158 |
| 4 | May 11, 2021 23:45 | May 12, 2021 06:00 | 6h 15m | 47 | 153 |
| 5 | April 2, 2021 19:30 | April 2, 2021 20:30 | 1h | 20 | 20 |
| 6 | September 20, 2021 16:15 | September 20, 2021 18:45 | 2h 30m | 12 | 30 |
| 7 | October 14, 2021 18:45 | October 15, 2021 11:15 | 16h 30m | 12 | 168 |
| 8 | April 5, 2021 17:15 | April 5, 2021 20:00 | 2h 45m | 10 | 7 |
| 9 | March 23, 2021 14:15 | March 23, 2021 15:45 | 1h 30m | 5 | 3 |
| 10 | February 6, 2021 18:00 | February 6, 2021 20:00 | 2h | 3 | 6 |
Outage episodes by size in 2021: 2 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 Platte County reported on EIA Form 861 for 2021, 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 |
|---|---|---|---|---|---|
| PacifiCorp | 2021 | 4.3 hrs | 1.86 | 2.0 hrs | 1.19 |
| Wyrulec Company | 2018 | 3.0 hrs | 1.03 | 71 min | 0.72 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Niobrara Electric Assn, Inc | - | - | - | - | - |
| Wheatland Rural Elec Assn, Inc | - | - | - | - | - |
| Town of Guernsey - (WY) | - | - | - | - | - |
| Town of Wheatland - (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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ modeled 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. Platte County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Platte County, WY annual power outage report, 2021, 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/2021/wyoming/platte-county