County annual report · FIPS 56007
2019 Carbon County, WY Power Outage Report
In 2019, customers in Carbon County, WY went without power for an average of 2.8 hours, a total of 31K customer-hours (Wyoming average 1.3 hours). That ranks 5th worst of 22 Wyoming counties and 1713th 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 Carbon 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 | April 3, 2019 11:30 | April 3, 2019 22:15 | 10h 45m | 908 | 272 |
| 2 | September 8, 2019 15:30 | September 9, 2019 11:00 | 19h 30m | 813 | 1,264 |
| 3 | March 29, 2019 11:00 | March 29, 2019 20:45 | 9h 45m | 690 | 2,062 |
| 4 | October 20, 2019 14:45 | October 21, 2019 01:30 | 10h 45m | 606 | 2,185 |
| 5 | March 22, 2019 06:45 | March 22, 2019 11:00 | 4h 15m | 602 | 1,810 |
| 6 | May 22, 2019 09:15 | May 22, 2019 10:45 | 1h 30m | 591 | 297 |
| 7 | April 20, 2019 13:45 | April 21, 2019 05:15 | 15h 30m | 569 | 3,975 |
| 8 | January 16, 2019 14:15 | January 17, 2019 01:00 | 10h 45m | 505 | 724 |
| 9 | March 13, 2019 15:00 | March 14, 2019 00:00 | 9h | 494 | 654 |
| 10 | January 14, 2019 15:00 | January 15, 2019 04:30 | 13h 30m | 395 | 434 |
Outage episodes by size in 2019: 24 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 Carbon 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 |
|---|---|---|---|---|---|
| PacifiCorp | 2018 | 3.2 hrs | 1.62 | 2.0 hrs | 1.25 |
| Yampa Valley Electric Assn Inc | 2018 | 4.7 hrs | 2.43 | 4.1 hrs | 2.14 |
| Carbon Power & Light, Inc | 2018 | 7.6 hrs | 1.56 | 2.5 hrs | 1.34 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| High Plains Power Inc | - | - | - | - | - |
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 ÷ 10,767 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. Carbon County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Carbon 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/carbon-county