the data center. The PUE value goes up as the data center becomes less efficient. IT load is another important issue of the PUE metric. "It is crucial that an accurate IT load is used for the PUE, and that it is not based upon the rated power use of the equipment. Accuracy in the IT load is one of the major factors affecting the measurement of the PUE metric, as utilization of the servers has an important effect on IT energy consumption and hence the overall PUE value". For example, a data center with high PUE value and high server utilization could be more efficient than a data center with low PUE value and low server utilization. There is also some concern within the industry of PUE as a marketing tool leading some to use the term "PUE Abuse". Notably efficient companies In October 2008, Google's data center was noted to have a ratio of 1.21 PUE across all 6 of its centers, which at the time was considered as close to perfect as possible. Right behind Google was Microsoft, which had another notable PUE ratio of 1.22. Since 2015, Switch, the developer of SUPERNAP data centers, has had a third party audited colocation PUE of 1.18 for its SUPERNAP 7 Las Vegas, Nevada facility, with an average cold aisle temp of and average humidity of 40.3%. This is attributed to Switch’s patented hot aisle containment and HVAC technologies. As of the end of Q2 2015, Facebook's Prineville data center had a power usage effectiveness (PUE) of 1.078 and its Forest City data center had a PUE of 1.082. In October 2015, Allied Control has a claimed PUE ratio of 1.02 through the use of two-phase immersion cooling using 3M Novec 7100 fluid. In January 2016, the Green IT Cube in Darmstadt was dedicated with a 1.07 PUE. It uses cold water cooling through the rack doors. In February 2017, Supermicro has announced deployment of its disaggregated MicroBlade systems. An unnamed Fortune 100 company has deployed over 30,000 Supermicro MicroBlade servers at its Silicon Valley data center with a (PUE) of 1.06. Through proprietary innovations in liquid cooling systems, French hosting company OVH has managed to attain a PUE ratio of 1.09 in its data centers in Europe and North America. Standards PUE was published in 2016 as a global standard under ISO/IEC 30134-2:2016 as well as a European