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ALLEGHENY ENERGY, INC

SIC 4911Electric Servicesoperating

Exchange

Entity type

operating

Fiscal year end

Dec 31

Headquarters

MD

Research Summary

AI-assisted · Grounded in filings

Updated Nov 28, 2025

ALLEGHENY ENERGY, INC

Allegheny Energy, Inc. (CIK 3673) is a major electric utility holding company incorporated in Maryland that generates and distributes electricity across the mid-Atlantic region, including Pennsylvania, West Virginia, Maryland, Ohio, and Virginia. The company operates approximately 8,593 megawatts of generation capacity primarily through coal-fired steam plants, hydroelectric facilities, and pumped storage projects, while also providing natural gas distribution services to residential and commercial customers. Founded in 1925 and operating under the Allegheny Power brand, the company expanded into unregulated energy markets through its Allegheny Energy Supply subsidiary. Key risks include significant capital expenditures for environmental compliance under the Clean Air Act, exposure to coal-dependent generation in an evolving energy landscape, and regulatory changes in deregulated markets. View Allegheny Energy's complete SEC filings and financial disclosures on Earnings Feed.