County annual report · FIPS 54055
2025 Mercer County, WV Power Outage Report
In 2025, customers in Mercer County, WV went without power for an average of 26.7 hours, a total of 1.0M customer-hours (West Virginia average 18.3 hours). That ranks 22nd worst of 55 West Virginia counties and 220th of 3,000 nationally.
Compared with WV, the US and 2024
Coverage line is EAGLE-I's share of West Virginia customers tracked each year.
Biggest outages in Mercer County, 2025
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 2, 2025 08:00 | April 3, 2025 00:15 | 16h 15m | 25,020 | 51K |
| 2 | January 6, 2025 02:00 | January 14, 2025 06:00 | 8d 4h | 13,807 | 737K |
| 3 | September 6, 2025 07:15 | September 7, 2025 21:30 | 1d 14h | 3,589 | 17K |
| 4 | January 31, 2025 06:00 | February 1, 2025 17:15 | 1d 11h | 2,897 | 12K |
| 5 | May 13, 2025 11:00 | May 14, 2025 18:00 | 1d 7h | 2,404 | 12K |
| 6 | July 10, 2025 19:00 | July 10, 2025 23:45 | 4h 45m | 2,249 | 5,614 |
| 7 | July 15, 2025 12:45 | July 16, 2025 01:15 | 12h 30m | 2,104 | 11K |
| 8 | May 2, 2025 09:45 | May 2, 2025 12:15 | 2h 30m | 1,954 | 3,392 |
| 9 | March 5, 2025 04:45 | March 6, 2025 00:45 | 20h | 1,393 | 4,366 |
| 10 | January 18, 2025 13:15 | January 19, 2025 17:45 | 1d 4h | 1,364 | 6,116 |
Outage episodes by size in 2025: 83 reached 100+ customers, 17 reached 1,000+ customers, 2 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 Mercer County reported on EIA Form 861 for 2025, 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 | 2024 | 29.5 hrs | 2.79 | 7.7 hrs | 2.07 |
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 West Virginia's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 38,077 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. Mercer County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Mercer County, WV annual power outage report, 2025, 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/2025/west-virginia/mercer-county