Not built yet. Every figure below is what it would take and emit at the capacity its owners have announced.
Water — consumed, not returned
Taken from the basin6,227M gal/yr
Evaporated on site1,205M gal
Making the power5,022M gal
Basin stressMedium-High
Where the water comes from
Municipal potable supply
Cooling
Closed-loop liquid (as proffered)
Basis
Modelled from cooling design — WUE 0.37 L/kWh
Air — what the stacks emit
Nitrogen oxides1,104t/yr
Sulphur dioxide981t/yr
Fine particulates147t PM2.5
Health damages$129M/yr
Where it burns
PJM Dominion — Virginia
Generation mix
Gas 55 · Nuclear 30 · Coal 4 · Solar 5
CO₂e
3,863 kt/yr — climate, not air quality
Who wanted it
Who asked for it
Undisclosed hyperscale tenants; land assembled by a coalition of ~40 property owners who lobbied for the rezoning
Who approved it
Prince William County Board of Supervisors rezoned 2,100 acres in a 13-hour December 2023 session; litigation over the vote continues
What it serves
Speculative hyperscale build — tenants not disclosed
IT capacity
0 MW running of 1,600 MW announced
Twenty-three million square feet approved along the edge of Manassas National Battlefield Park. The National Parks Conservation Association and residents sued over the rezoning process; the site is the sharpest test yet of whether local land-use law can absorb gigawatt-scale demand.
Water and air figures are modelled from disclosed capacity, not measured — site-level
error is roughly ±40%. Diesel backup generators are not counted, so on-site figures are floors.
Full method.