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The Energy Efficiency tab was renamed Sustainability metrics on the Dashboard in the web client.
Click Configuration and select General to configure metrics. An asterisk * indicates that configuration in the web client is required.
Metrics include:
PUE: Power Usage Effectiveness (PUE) is the industry-accepted energy efficiency metric for the physical infrastructure systems that support the IT loads of a data center, for example, power and cooling.
PUE = total facility power / IT load
DCiE: Data center infrastructure efficiency (DCiE) is a metric used to determine the energy efficiency of a data center, developed by The Green Grid. It is shown as a percentage, calculated by dividing the IT load by the facility power.
DCiE = IT load / total facility power x 100%
Subsystem loss: Energy comsumption by the infrastructure subsystems
Capacity utilization: The IT load is expressed as a percentage of the full theoretical capacity rating of the physical infrastructure.
Renewable Energy Factor*: REF is calculated as the ratio of the renewable energy consumed by the data center to its total energy consumption. Specify the amount of energy in kWh that is produced from renewable sources.
Water Usage Effectiveness*: WUE is the ratio between the use of water in data center systems and the energy consumption of the IT equipment, measured in liters/kilowatt-hour (L/kWh). Specify the daily water usage in liters.
Carbon Usage Effectiveness: CUE is the ratio of total data center carbon dioxide (CO2) emissions to IT equipment energy consumption. The CO2 emissions data is derived from the system configuration.
Historical PUE: The PUE of the data center infrastructure over a timeframe you choose in Configuration, displayed as a rolling average.
Subsystem Costs: The cost of each subsystem in the data center infrastructure based on the energy cost per kWh input. To improve readability, the values in the table are rounded. All calculations are performed prior to rounding, so small differences may occur in the rounded values.