A data center is a building or campus that houses computer equipment and the systems that keep it powered, cooled, connected, and available. The useful question is not just what it is, but what its particular design requires from the surrounding community.
Power and cooling are usually the two largest physical systems. A facility may use utility power, substations, battery systems, generators, water or air cooling, and fiber connections.
What a data center is
Use original public records whenever possible. A developer statement can explain an intent; an approval, permit, or utility filing is where enforceable details are more likely to appear.
Data-center types explained
Record the date, document title, agency, page number, and project address. That turns a claim into something another reader can check.