A data center is a large and secured building where computers, servers, and networking equipment are stored and managed. It is a place where massive amounts of data can be stored, processed, and accessed easily. Full definition
«Clearly if you can coordinate with locating data centers in an area with a focus on renewable energy, that's a good thing,» he said. (scientificamerican.com)
However, that measures the efficiency of data center cooling and power supply. (treehugger.com)