Skip to Main Content

About Monongahela Power Company

Electricity flows from Monongahela Power (Mon Power) just like the river the utility was named after. The company services approximately 388,000 residential and commercial customers in a service area of 13,000 sq. mi. in West Virginia. Mon Power, along with West Penn Power and Potomac Edison, comprise the Allegheny Power arm of Allegheny Energy, which is now part of FirstEnergy. In 2013 Mon Power owned or controlled 3,580 MW of generating capacity. The company is contractually obligated to supply Potomac Edison with sufficient power to meet that company's power load obligations in West Virginia.


Mon Power provides generation, transmission and distribution services. Its infrastructure includes 25,390 miles of distribution lines and more than 2,125 miles of transmission lines.

Geographic Reach

The utility's service area includes Northern, Central, and Southeastern West Virginia.


In 2013, the parent company invested about $131 million in Mon Power and planned to invest about $233 million more in 2014 to help Mon Power expand its operations.

In a transfer of assets within FirstEnergy's West Virginia-based operations to improve efficiencies, in 2013 Mon Power sold its 8% share of the Pleasants power plant at its fair market value of $73 million to Allegheny Energy Supply. In return Allegheny Energy Supply sold its 80% stake in the Harrison plant to Mon Power at its book value of $1.2 billion.

To lower carbon emissions, in 2012 Mon Power shut down three aging coal-fired power plants in West Virginia: Albright, Willow Island, and Rivesville.

Company Background

The company is a subsidiary of Allegheny Energy, which is owned by FirstEnergy.

Mon Power was incorporated in Ohio in 1924.

Monongahela Power Company

5001 NASA Blvd
Fairmont, WV 26554-8248
Phone: 1 (800) 686-0022

Firm Stats

Employer Type: Privately Owned
Associate Business Analyst: Jane Campbell
Employees (This Location): 1,000
Employees (All Locations): 4,000

Major Office Locations

Fairmont, WV

Other Locations

Butler, PA
Elkins, WV
Haywood, WV
Ronceverte, WV
Willow Island, WV