Michael Ivanovich, Editor-in-Chief, and Patrick Lynch, Associate Editor

Data center discussion

CSE: What problems arise due to a lack of a standard for data center energy efficiency or Power Utilization Equivalence (PUE)? Keith Lane: There have been many unsubstantiated claims of very low PUE levels from data center operators and salespeople. PUE is a good matrix to identify energy efficiency, but there must be a standard to make sure that you are comparing the same thing. Also, the PUE levels are going to be dependent on the climate.