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Commissioners split on Bent/Vint Hill substation; no final action taken
Summary
Dominion Energy presented an expansion plan for the Vint/Bent Hill substation and responded to questions about SF6 gas use and load forecasts. Commissioners raised concerns about massing and emissions; the commission took no final action and the item may proceed to the Board.
Dominion Energy briefed the Prince William County Planning Commission on Oct. 29 about the Vint (Bent) Hill substation expansion associated with SUP2025-00009. Presenters Tracy McDonald and subject-matter experts Jim Stage and Ninath Padil explained that the expansion uses northern parcel area to minimize proximity to Bent Hill Road and preserve existing operational equipment during construction.
Commissioners pressed the utility on use of SF6 (sulfur hexafluoride) in gas-insulated switchgear and on why some load-forecast filings show projected…
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