Efficiency Metrics and Standards Quiz

In the U.S., there are multiple overlapping data center energy efficiency metrics and standards, such as ASHRAE, Energy Star, and The Green Grid, to name a few. While they are similar in their overall intent, they differ in their terminologies, methodologies, and applications.

1. In the U.S., what are the most commonly recognized organizations of data center facility energy efficiency standards and metrics?
A. DOE, IEEE, IEC
B. The Green Grid, EPA, ASHRAE
C. AIA, IEC, EPA
D. Open Compute, 80Plus, IEC
2. Which is an ASHRAE data center energy efficiency standard?
A. TC 9.9
B. 90.1
C. 90.4
D. PUE
3. Which data center standard or metric references climate zones?
A. ISO
B. 90.4
C. PUE
D. pPue
4. Arc flash-rated protective clothing is rated in:
A. NSA
B. DOE
C. IEEE
D. EPA
5. What other elements of the Energy Star program for data centers can influence the overall energy usage of a data center?
A. Energy Star for Data Center CRACs
B. Energy Star for Enterprise Servers
C. Energy Star Data Center Chillers
D. Energy Star Data Center Security Systems
6. What other elements of the Energy Star program for data centers can directly impact the energy efficiency of a data center facility rating?
A. Energy Star for Data Center Storage
B. Energy Star for Uninterruptible Power Supplies (UPS)
C. Energy Star for Large Network Equipment
D. Energy Star for Enterprise Servers
7. What is the original formula to calculate data center power usage effectiveness (PUE) created by The Green Grid (TGG)?
A. The power output of the IT equipment x the total facility energy
B. The power draw of the IT equipment / the total facility energy
C. The total facility power / IT equipment power
D. All of the above
8. What is the TGG data center energy efficiency metric that is the reciprocal of PUE?
A. Partial PUE
B. Data Center Infrastructure Efficiency (DCiE)
C. Energy Reuse Effectiveness (ERE)
D. Energy Reuse Factor (ERF)
9. What is TGG’s Energy Reuse Factor (ERF) based on?
A. The IT energy heat which is removed by free cooling
B. The data center energy that is reused elsewhere in the facility / the total energy brought into the data center
C. Decreases in annualized chiller energy consumption
D. The use of free cooling
10. What other factors can impact the actual data center energy efficiency?
A. Equipment redundancy levels vs. efficiency
B. Energy cost
C. Tax incentives
D. All of the above
Thank you!
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