Power Outages in West Virginia: Duration, Frequency & Backup Planning
West Virginia stood out for both high all-event duration and high no-major-event SAIDI, indicating that its 2024 reliability burden was not explained only by major events.
Source: U.S. Energy Information Administration, Electric Power Annual Table 11.3.
19.4 hours
1,165.5 minutes of all-event SAIDI per average customer in 2024. Rank: #7 of 51 jurisdictions by duration.
2.83 events
Average non-momentary interruptions per customer. Rank: #2 by SAIFI.
412 minutes
Average restoration duration per sustained interruption using EIA’s all-event CAIDI.
How much did major events change West Virginia’s 2024 result?
EIA publishes reliability both with all events and with major-event days excluded. We calculate the difference between those two SAIDI values.
Without major events, West Virginia’s SAIDI was about 8.1 hours. The all-event figure was 19.4 hours. This does not mean every household experienced that amount of downtime; SAIDI is a statewide utility-weighted average across reporting customers.
How West Virginia compared with the national total
West Virginia’s all-event SAIDI was 91% higher than the U.S. total of 611.3 minutes in the same EIA table.
Its SAIFI was 86% higher than the U.S. total of 1.521 sustained interruptions per customer.
National all-event CAIDI was 401.9 minutes per interruption versus 411.5 minutes in West Virginia.
For West Virginia, longer routine outage exposure makes base battery capacity more important even before adding a separate severe-event recharge strategy.
Do not size a battery from SAIDI alone
SAIDI is useful context, but it is not a recommended battery runtime. A home backup system should be sized from the loads you actually need, the outage duration you want to cover and the recharge paths you can depend on.
West Virginia reliability snapshot
“Without major events” values remove major-event days under the reporting utility’s applicable method.
| Metric | All events | Without major events | What it means |
|---|---|---|---|
| SAIDI | 1165.5 min | 486.1 min | Annual sustained-interruption minutes per average customer |
| SAIFI | 2.832 | 2.287 | Sustained interruptions per average customer |
| CAIDI | 411.5 min | 212.6 min | Average restoration minutes per sustained interruption |
EIA reported customer coverage for West Virginia: 97.3%. EIA notes percentages may occasionally exceed 100% because reliability-meter counts and customer-count denominators come from different survey schedules.
What this report can tell you
It shows the statewide scale of sustained distribution interruptions in one calendar year, separates major-event and non-major-event reporting, and makes it easier to compare West Virginia with the national benchmark and other states.
It is useful for understanding why a backup plan needs both stored energy and a realistic recharge strategy.
What it cannot tell you
It cannot predict the next outage at a specific address. Utility territory, feeder design, vegetation, weather, local construction and restoration priorities can produce reliability very different from the statewide average.
Use the state reliability explorer to compare other states and the national study for methodology and full rankings.