County annual report · FIPS 56025
2024 Natrona County, WY Power Outage Report
In 2024, customers in Natrona County, WY went without power for an average of 2.0 hours, a total of 98K customer-hours (Wyoming average 2.4 hours). That ranks 14th worst of 20 Wyoming counties and 2398th of 2,990 nationally.
Compared with WY, the US and 2023
Coverage line is EAGLE-I's share of Wyoming customers tracked each year.
Biggest outages in Natrona County, 2024
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 15, 2024 14:15 | July 16, 2024 02:45 | 12h 30m | 27,460 | 26K |
| 2 | June 9, 2024 04:30 | June 9, 2024 06:45 | 2h 15m | 3,227 | 810 |
| 3 | July 23, 2024 13:30 | July 24, 2024 01:30 | 12h | 3,041 | 8,185 |
| 4 | August 16, 2024 14:15 | August 16, 2024 19:15 | 5h | 2,577 | 753 |
| 5 | July 12, 2024 14:45 | July 13, 2024 10:15 | 19h 30m | 2,574 | 827 |
| 6 | July 4, 2024 02:00 | July 4, 2024 03:15 | 1h 15m | 2,554 | 1,937 |
| 7 | October 1, 2024 19:00 | October 1, 2024 23:15 | 4h 15m | 2,551 | 1,292 |
| 8 | September 16, 2024 01:30 | September 16, 2024 09:30 | 8h | 2,352 | 3,163 |
| 9 | July 24, 2024 03:45 | July 24, 2024 05:00 | 1h 15m | 2,349 | 589 |
| 10 | July 4, 2024 14:30 | July 4, 2024 15:15 | 45m | 2,334 | 1,167 |
Outage episodes by size in 2024: 72 reached 100+ customers, 16 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 Natrona County reported on EIA Form 861 for 2024, 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 | 2024 | 4.6 hrs | 1.67 | 2.0 hrs | 1.11 |
| High Plains Power Inc | 2024 | 5.2 hrs | - | 5.2 hrs | - |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Wyoming's customers in 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 47,992 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. Natrona County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Natrona County, WY annual power outage report, 2024, 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/2024/wyoming/natrona-county