The Department of Energy says it intends to spend up to $50 million in Defense Production Act funding to push an estimated 290 more megawatts of transmission capacity through Appalachian Power’s existing lines in Virginia. The money is tied to a project covering Virginia and West Virginia, and it would use technologies that squeeze more power from wires already on the poles instead of stringing new ones. DOE says the approach can deliver capacity one to four years faster than conventional upgrades.
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The announcement is an intent to fund, not a finished award, and the proposed project is set to run for 48 months. The utility involved is already planning for a surge of large new customers.
Up to $50 million for Appalachian Power’s existing lines
In its announcement, DOE says it will deploy up to $50 million in Defense Production Act funding to expand transmission capacity in Virginia and West Virginia. The recipient project is Virginia Energy’s “Grid Enhancing Technologies for Virginia & West Virginia Large Load Growth,” with Appalachian Power as the utility partner. DOE’s release says the project would add an estimated 290 megawatts of transmission capacity across Appalachian Power’s Virginia system using advanced reconductoring and Dynamic Line Rating on existing corridors.
Chris Wright, the Secretary of Energy, said the administration is strengthening the nation’s energy security for decades to come by using Defense Production Act funding to secure and expand electricity access in the two states. Katie Jereza, Assistant Secretary of the Office of Electricity, said that “A stronger electric grid doesn’t always mean building more power lines.”
DOE lists the stated benefits as greater reliability, lower electricity costs and dependable power for communities, businesses, military operations and defense-related industries. The release adds that Potomac Edison and other regional partners are involved in coordination. Because the money is described as funding DOE intends to deploy, the award terms, milestones and any cost-sharing are details that the announcement does not spell out.
Reconductoring and dynamic line ratings
Both technologies get more out of existing transmission corridors. DOE’s page on grid-enhancing technologies says Dynamic Line Rating uses hardware, software, or both to update the capacity limits of existing lines in real time, and that on cold or windy days lines can carry about 50% more energy than their labeled limits. Idaho National Laboratory, which works on the topic for DOE’s Office of Electricity, describes dynamic rating as adjusting line ratings based on real-time weather conditions, and is testing five types of advanced conductors for reconductoring under extreme real-world conditions.
Neither source gives a capacity gain for the Virginia project beyond DOE’s own 290 megawatt estimate, so the figure should be read as a projection tied to the proposed 48-month schedule and not as a measured result. A DOE case study on these technologies, cited by the department, says grid-enhancing options can address curtailment at a fraction of the cost of traditional upgrades with a faster payback, though with a shorter life cycle, which frames the tradeoff behind choosing them over new lines.
Defense Production Act authority and the load behind it
The funding rests on a presidential finding. The release cites $1 billion in federal funding appropriated through the Working Families Tax Cut for energy projects critical to national security, and Presidential Determination No. 2026-10, which identifies transmission lines and conductors, substations, and power-control and protection equipment as essential to national defense. The April 2026 determination invokes section 303 of the Defense Production Act and directs the Energy Secretary to make purchases, commitments and financial instruments for grid infrastructure, a list that includes transformers, conductors and high-voltage circuit breakers.
The project’s name points to the demand behind it: large-load growth. Cardinal News reported in July that Appalachian Power is in talks with 36 potential large-load customers in Virginia, with combined demand of about 25,000 megawatts, more than triple the company’s recent peak of about 7,200 megawatts. Brian Abraham, the utility’s president and chief operating officer, described “explosive and unprecedented growth driven by large-load customers.”
The utility has named customers in the pipeline. Cardinal News lists Stack Infrastructure in Pittsylvania County at 299 megawatts committed, TAC Data Centers in Wythe County at 1,000 megawatts according to the developer, and a Nucor steel plant in West Virginia at 450 megawatts, and it adds that the company declined to say how many of the 36 prospects are data centers because of confidentiality agreements.
The same report says Appalachian Power has contracted for 540 megawatts of data center load in Virginia since 2024 and more than double that amount in West Virginia. Against loads of that size, 290 megawatts of added transmission capacity is a meaningful but partial answer, and DOE’s claim of one to four years of time savings is the part that utility planners and regulators are likely to test as the work proceeds.
This article was produced with the assistance of AI and reviewed by Morning Overview editors prior to publication.
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