Sustainability Dashboard

PUE Estimator

Clicking on a will give you more information about the selected row.

You can choose your climate zone manually by checking this box:
(Required for data centers located outside the United States)

Select the AVERAGE supply air temperature of your cooling units.

Choose units from different locations in the data center space.

The supply temperature fluctuates over time for some cooling units, so obtain a time-average reading that accounts for these temporal fluctuations.

Select the AVERAGE return air temperature of your cooling units.

Choose units from different locations in the data center space.

The return temperature varies across the intake opening for some cooling units, so obtain an average reading that accounts for these spatial variations.

Do you have one or more active, working, automatically-controlled humidifiers that serve the data center space?

Does the air-conditioning system that serves the data center allow you to specify an upper humidity limit (RH or dewpoint), and is the system designed to automatically control to this setpoint?

Is there an extra cooling coil in the CRACs/CRAHs/AHUs that is served directly with water from a cooling tower?

Are the cooling units equipped with automatically controlled louvers that bring outside air in to the data center for cooling purposes when weather conditions are favorable?

DX = Direct Expansion. If you have more than one type of cooling system serving the data center, select the dominant one (the one currently carrying the highest load).

* State/Region:

* County:

Climate Zone:

Determined by entries above.

* What is a typical (average) air temperature leaving the cooling coils (supply)?

* What is a typical (average) air temperature entering the cooling coils (return)?

* Do you have active, working humidification controls?

Yes

* Do you have active, working dehumidification controls?

Yes

* Does the CRAC/CRAH/AHU have a free cooling coil (water side economizer)?

Yes

* Is there air-side free cooling?

Yes

* Cooling System Type?

* Is there an Uninterruptible Power Supply (UPS)?

Yes

If a UPS exists but is not used, answer No.

Clicking on a will give you more information about the selected row. You can choose your climate zone manually by checking this box: (Required for data centers located outside the United States)

Clicking on a will give you more information about the selected row.

You can choose your climate zone manually by checking this box:
(Required for data centers located outside the United States)