A study for the international standard CO₂ evaluation : Case of the CO₂ measure in IDC
Authors:   Asia-Europe Perspective Association, Sim Sang-Chun 
Published: June 2018

In this paper, It look for solution of a climate change and the warming. The solution reduce CO₂. The method is carbon dioxide emissions. and then it is ETS(Emissions Trading Scheme). At IDC I research an objective evaluation method for reducing the CO₂ . I study PUE(Power Usage Efficiency) and TPUE(Total Power Usage Efficiency). We’ve discussed how to measure total facility power. The short summary is it must be measured prior to all UPS and power conditioning at medium voltage. If high voltage is delivered directly to your facility, you should measure after the first step down transformer. If your facility is delivered low voltage, then ask your power supplier whether it be the utility, the colo-facility owner, or your companies infrastructure group, the efficiency of the medium to low step down transformer at your average load. Add this value in mathematically. This is not perfect but it better than where we are right now when we look at a PUE. Please consider helping to evangelize tPUE and use tPUE. And, for you folks designing and building commercial servers, if you can help by measuring the Productive IT Equipment Power for one or more of your SKUs, I would love to publish your results. If you can supply Productive IT Equipment Power measurement for one of your newer servers, I’ll publish it here with a picture of the server. The Green Grid proposed the use of Power Usage Effectiveness (PUE) and its reciprocal, Datacenter Efficiency (DCE) metrics, which enable datacenter operators to quickly estimate the energy efficiency of their datacenters, compare the results against other datacenters, and determine if any energy efficiency improvements need to be made. Since then, PUE has received broad adoption in the industry, but DCE has had limited success due to the misconception of what data center efficiency really means. As a result, this paper reaffirms the use of PUE but redefines its reciprocal as datacenter infrastructure effi ciency (DCiE). This refinement will avoid much of the confusion around DCE and will now be called DCiE. In the long term, The Green Grid is developing metrics to measure data center productivity as well as efficiency metrics for all major power-consuming subsystems in the datacenter. To promote these metrics and drive greater datacenter energy efficiency for businesses around the world, The Green Grid will publish future white papers that provide detailed guidance on using these metrics. We will also continue to collaborate with organisations such as the EPA, ECMA and Climate Savers that promote a similar goal and vision. They are not enough. PUE has the problems that evaluate the power saving performance of only IT machinery. PUE(Power Usage Effectiveness), DCE(Datacenter Efficiency), DCiE(Data Center Infra Efficiency), DCPE(Datacenter Performance Efficiency), DPPE(Datacenter Performance Per Energy), etc has some problems. DUE solves the problems. DUE contain natural power facility. It measures the power saving performance of IT machinery and tools. and It measures natural energy use. but, DUE is case of the CO₂ measure in IDC. From now on, You must study it. Development to the general evaluation index is demanded.