Citadel Campus

Switch · Tahoe Reno Industrial Center, Nevada

Water — consumed, not returned

Taken from the basin428M gal/yr
Evaporated on site17.9M gal
Making the power410M gal
Basin stressExtremely High
Where the water comes from
Closed loop — negligible draw
Cooling
Switch's own waterless hybrid design
Basis
Fitted to a published figure of 18.0 million gallons a year

Air — what the stacks emit

Nitrogen oxides409t/yr
Sulphur dioxide423t/yr
Fine particulates49.4t PM2.5
Health damages$48.4M/yr
Where it burns
WECC Rockies — Utah / Nevada
Generation mix
Gas 42 · Coal 34 · Solar 12 · Geo 5
CO₂e
652 kt/yr — climate, not air quality

Who wanted it

Who asked for it
Mixed colocation tenants — no single anchor disclosed
Who approved it
Storey County TRIC master plan; NV Energy green-tariff supply from dedicated solar
What it serves
Colocation for enterprise, government and AI tenants
IT capacity
200 MW running of 650 MW announced

Marketed as the largest colocation campus in the world and built essentially waterless in the high desert, on a dedicated solar tariff. A useful upper bound on how low a big site's water and carbon can go when siting is deliberate.

water-stressed basin

Where it is

39.5300°, -119.4400°

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.