olemus IT alal
arvutikeskuse energiatarbe jaotuse mõõt:
kogu energiatarbe (valgustus, jahutus jms) ja arvutiseadmestiku energiatarbe suhe; ideaalne sihtväärtus on 1,0
= a metric used to determine the energy efficiency of a data center:
the ratio of total facility energy to IT equipment energy used in a data center

ülevaateid
https://www.colocationamerica.com/blog/what-is-pue

https://en.wikipedia.org/wiki/Power_usage_effectiveness

https://www.vertiv.com/en-emea/about/news-and-insights/articles/educational-articles/what-is-pue-power-usage-effectiveness-and-what-does-it-measure/

https://core.ac.uk/download/pdf/204512412.pdf

standardid
https://www.iso.org/obp/ui/#iso:std:iso-iec:30134:-2:ed-1:v1:en