The campus at 2 am

How far does a 300 MW data center carry at 2 am?

A developer's permitting lead or a county planner gets asked at the first hearing how far it carries. This screen gives a first answer before any noise study, from equipment levels in filed studies.

Screening model of a hypothetical campus. Not a noise study. No project is proposed here.

-- homes at or above 40 dBA

Loading the model.

Chillers at 2 am

Ground

Leaves the 2 am story. Testing only, in the day. A blackout is not modeled.

Level against distance Homes at or above (Unclassified)

40 and 48.6 dBA are thresholds with sources, not what people will hear. No site sound measurements exist, and I-35E runs close to the site.
Design-day levels held steady at 2 am. This is not a measured night load. The Cardinal filing says units would likely run quieter.

Night load and low frequency

Texas and local limits

Homes

Campus and site

Filed studies

How this was made

A developer's permitting lead or a county planner gets asked at the first hearing how far it carries. This screen gives a first answer before any noise study, from equipment levels in filed studies.

Level against distance from the campus edge

Curves: G 0.5, modeled. Dots: farthest reach of each level on the chosen ground. No curve exists for the generator test. WHO 40: Lnight outside. EPA 48.6: Ldn 55 for a sound steady all day.

Homes at or above (Unclassified). Click a row.