In short: The Eastern Panhandle is West Virginia’s exception. Potomac Edison, which serves Martinsburg and Charles Town, charged homes about 12.59¢ per kWh in 2024, the lowest of the state’s big utilities, and its customers lost about 275 minutes of power, under a quarter of the state average. Strong wind is Berkeley County’s top FEMA-rated hazard.
This page covers Martinsburg, Charles Town and the Eastern Panhandle counties. Statewide rules (the lower export credit for new solar customers and 25-year grandfathering, licensing, tax breaks we could not confirm) are on our West Virginia energy guide.
Eastern Panhandle at a glance
- Potomac Edison (a FirstEnergy company; all of Berkeley, Jefferson and Morgan counties): 12.59¢/kWh average for homes in 2024; outages 275 minutes per customer with major events and 253 without; about 1.5 interruptions a year (EIA-861, West Virginia service area).
- Home solar: 1,077 net-metered home systems on Potomac Edison’s West Virginia lines at the end of 2024, 186 of them with a battery (EIA).
- Sun: about 3.98 kWh per square meter per day at Martinsburg (NASA POWER, 2001 to 2020). Our rough estimate: about 1,160 kWh a year per kW of panels.
- Top hazards (FEMA National Risk Index): Berkeley and Jefferson counties both rate “Relatively Low” overall. Strong wind is “Relatively High” in Berkeley County; drought, lightning, river flooding and winter weather are “Relatively Moderate” there. Morgan County rates “Very Low”.
- Public charging: 30 ports in Charles Town and 23 in Martinsburg (AFDC, October 3, 2026).
For comparison, West Virginia averaged 1,166 outage minutes with major events and 486 without in 2024, and 15.78¢ per kWh in July 2026. Prices here are 2024 averages including fixed charges.
Your utility and what it means
- Better grid, cheaper power: Potomac Edison’s 2024 outage time, about 4.6 hours per customer, was a fraction of Appalachian Power’s 30 hours in the south of the state, and its price was the lowest of West Virginia’s four big utilities. Outages still happen about one and a half times a year.
- Solar credits: new Potomac Edison residential solar customers since 2025 are credited about 9.34¢ per kWh for exports, while earlier customers keep retail credit for 25 years (see our state page).
- Interconnection: FirstEnergy’s West Virginia rules cap net-metered home systems at 25 kW; a Level 1 application (inverter-based, 25 kW or less) costs $30 and goes through an online portal with a site plan and one-line diagram. Inverters must use the settings required since January 1, 2024 (FirstEnergy West Virginia interconnection).
- EV programs: Potomac Edison’s charger rebate and EV time-of-use rate are Maryland programs; we found no equivalent for its West Virginia customers. If you see them advertised, check that they apply on your side of the state line.
Backup power in the Eastern Panhandle
Backup is less urgent here than in the rest of West Virginia: about 4 hours without power a year on ordinary days, and low overall hazard ratings. The risk to plan for is wind, rated “Relatively High” in Berkeley County, which brings down trees and lines; homes on wells or with sump pumps feel that first.
- Most homes: a portable power station covers internet, lights, phones and a fridge through a typical outage.
- Rural homes on a well, medical equipment or home offices: a home battery or a standby generator with a transfer switch installed by a licensed electrician.
- Safety: portable generators outdoors only, at least 20 feet from the house, exhaust away from doors and windows, never in a garage (CPSC); carbon monoxide alarms on every level.
Size it with the battery backup calculator or the generator sizing calculator; see our backup power guide and generator installation.
Solar in the Eastern Panhandle
A rough estimate: a 7 kW system at about 1,160 kWh per kW makes roughly 8,130 kWh a year. Used entirely at home at 12.59¢ it would be worth about $1,020 a year; with half exported at the 9.34¢ credit, about $890. Cheap power makes solar slower to pay back here than in Charleston or Huntington, so get several quotes and compare the price per watt. Try the solar potential calculator, then read solar panel cost and solar installation.
Batteries
With a reliable grid, a battery here is mostly about self-use: storing midday solar for the evening instead of exporting it at 9.34¢. Even so, 186 of Potomac Edison’s 1,077 net-metered home systems in West Virginia, about one in six, had a battery at the end of 2024. See home battery installation and home battery cost.
EV charging
A labelled estimate at 30 kWh per 100 miles: about $3.78 per 100 miles at Potomac Edison’s 2024 average (roughly $450 a year for 12,000 miles), the cheapest of the four West Virginia metros we cover. A Level 2 charger needs a 240-volt circuit, a permit where your city or county requires one, and a licensed electrician. See EV charger installation and the EV charging cost calculator.
Drive on another fuel? See every alternative fuel station in Martinsburg: hydrogen, propane, natural gas, E85 ethanol, biodiesel and renewable diesel.
Permits and inspections
- Martinsburg and Charles Town: ask the city’s building office; outside city limits, Berkeley or Jefferson County. Their websites blocked our checks, so we cannot yet summarize their rules; call before you plan.
- Utility approval: solar and batteries need Potomac Edison’s interconnection approval through FirstEnergy’s portal before they go live.
- Who does the work: a licensed electrician and contractor (state lookups on our state page), a qualified gas fitter for generator fuel lines, and HOA approval where needed.
Cities we cover
- Martinsburg
- Charles Town
Get help
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Eastern Panhandle energy FAQ
Why is the power more reliable in the Eastern Panhandle?
EIA’s data show the result, not the reason: Potomac Edison’s West Virginia customers averaged about 275 outage minutes in 2024, against 1,166 statewide. FEMA also rates the area’s natural hazard risk low overall. Plan for about one or two outages a year, mostly from wind.
Can I get Potomac Edison’s EV charger rebate in Martinsburg?
We found its charger rebate and EV time-of-use rate only for Maryland customers. For West Virginia, we found no current Potomac Edison EV program; ask the company before you buy a charger expecting a rebate.
How much does solar save in the Eastern Panhandle?
By our rough estimate a 7 kW system is worth about $890 to $1,020 a year at Potomac Edison’s 2024 price, depending on how much you use yourself. The low price of power means a longer payback than in the rest of the state.
Do I need a generator here?
Many homes do not. Outages averaged about 4.6 hours in 2024, so a power station or small battery covers most of them. A generator makes sense for wells, sump pumps, medical needs or rural homes where wind storms can mean longer repairs.
Sources
Utility area, prices, outages, home solar and battery counts: EIA-861, 2024 data. Interconnection: FirstEnergy West Virginia interconnection page. Export credits: our West Virginia state page and its sources. Hazards: FEMA National Risk Index, December 2025. Sun: NASA POWER, 2001 to 2020. Charging ports: AFDC Station Locator, October 3, 2026. Generator safety: CPSC. Checked October 3, 2026.