County annual report · FIPS 54053
2021 Mason County, WV Power Outage Report
In 2021, customers in Mason County, WV went without power for an average of 57.7 hours, a total of 864K customer-hours (West Virginia average 21.4 hours). That ranks 4th worst of 55 West Virginia counties and 150th of 2,974 nationally.
Compared with WV, the US and 2020
Coverage line is EAGLE-I's share of West Virginia customers tracked each year.
Biggest outages in Mason 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 | February 11, 2021 00:00 | March 3, 2021 15:15 | 20d 15h | 4,603 | 733K |
| 2 | March 28, 2021 18:30 | March 29, 2021 16:15 | 21h 45m | 3,111 | 26K |
| 3 | December 16, 2021 14:15 | December 16, 2021 18:00 | 3h 45m | 1,795 | 1,823 |
| 4 | December 11, 2021 12:15 | December 13, 2021 19:30 | 2d 7h | 1,750 | 31K |
| 5 | May 9, 2021 20:30 | May 11, 2021 00:15 | 1d 3h | 1,051 | 9,316 |
| 6 | December 9, 2021 16:15 | December 9, 2021 23:30 | 7h 15m | 629 | 1,285 |
| 7 | August 25, 2021 13:15 | August 26, 2021 23:15 | 1d 10h | 599 | 2,431 |
| 8 | March 8, 2021 12:45 | March 9, 2021 05:30 | 16h 45m | 577 | 1,249 |
| 9 | May 11, 2021 16:30 | May 11, 2021 20:45 | 4h 15m | 576 | 1,018 |
| 10 | February 10, 2021 12:00 | February 10, 2021 14:30 | 2h 30m | 544 | 963 |
Outage episodes by size in 2021: 43 reached 100+ customers, 5 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 Mason 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 |
|---|---|---|---|---|---|
| Appalachian Power Co | 2021 | 22.1 hrs | 2.24 | 7.7 hrs | 1.84 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 97% of West Virginia's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 14,979 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. Mason County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Mason County, WV 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/west-virginia/mason-county