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Parameters for Existing Air Cooled Data Center
Cooling Power Savings
Server Power
W
Air Cooled Data Center
Number of Servers Per Rack (currently)
servers/rack
Annual Cooling Power
kWh
Server Size (in rack units)*
U
Annual Cooling Cost
Rack Size (in rack units)
U
Rack Space Reserved for Network Switches, etc.
U/rack
RackCDU Cooled Data Center
Total Number of Servers in Data Center
servers
Annual Cooling Power
kWh
Data Center PUE
Cooling
Power Savings
%
% of Overhead Power Used for Cooling
%
Annual Cooling Cost
Electricity Cost
$/kWh
Annual RackCDU Cooling Cost Savings
Reduction in Carbon Emmissions (CO
2
)**
tons
Parameters for RackCDU Cooled Data Center
% of Server Power Cooled by RackCDU
%
Density Benefit
Useful % for Energy Recovery at Your Location
%
Air Cooled Data Center
Natural Gas Cost
$/Therm
Racks Required
racks
RackCDU Cooled Data Center
Racks in RackCDU Data Center
racks
Rack Savings
fewer racks
Density Benefit
x denser
Server Energy Recovery
RackCDU Cooled Data Center
Annual IT Power
kWh
IT Energy Recovery
kWh
Value of Energy Recovery***
ERE (Energy Reuse Efficiency)
%
Reduction in Carbon Emmissions (CO
2
)***
tons
*
For blade servers: enter size of blade chasses in RU divided by number of blades per blade chassis, e.g. enter 0.6 for a 6U blade chassis that supports 10 blades.
**
Calculated at California Public Utilities Commission approved ClimateSmart electric emissions rate of 0.524 lbs of CO
2
per kWh.
***
Assumes recovered energy reduces purchases and burning of natural gas at ClimateSmart natural gas emissions rate of 13.446 lbs of CO
2
per Therm.
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