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13h ago

Commonwealth Fusion Systems Files First Fusion Interconnection Request With PJM

The move begins the lengthy review required to connect a new 400-megawatt plant to the Mid-Atlantic grid.

CFS-ARC-Power-Plant-Aerial-Illustration: Commonwealth Fusion Systems (CFS) plans to begin operating the Fall Line Fusion Power Station, home of the company’s first ARC fusion power plant, in the early 2030s. This illustration shows a ground-level view of the facility in Chesterfield County, Virginia. Fusion, the physical process that powers the sun, is a clean, safe, and carbon-free source of energy. Source: Commonwealth Fusion Systems
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Bob Mumgaard, CEO of Commonwealth Fusion Systems, speaks during a Siemens keynote at CES 2026, an annual consumer electronics trade show, in Las Vegas, Nevada, U.S. January 6, 2026. REUTERS/Steve Marcus/File Photo

Overview

  • Commonwealth Fusion Systems, which filed Tuesday, became the first fusion developer to seek a PJM grid interconnection for its planned ARC power plant.
  • The application covers a roughly 400 megawatt facility at the Fall Line Fusion Power Station site in Chesterfield County, Virginia.
  • PJM, the largest U.S. grid operator serving more than 65 million people, will run detailed studies that often take four to six years and can require network upgrades before a plant can connect.
  • CFS targets starting construction around 2027, says work could begin as early as late 2026, and aims to deliver electricity in the early 2030s.
  • The company says it has raised nearly $3 billion, secured utility guidance from Dominion Energy, and signed offtake deals with Google and Eni as PJM manages a heavy queue and rising demand from data centers and electrification.