Data Center Power and Cooling Requirements C Info-Tech Research Group tools and template documents are provided for the free Group services. These documents are intended to supply general information only, intended to be used as a substitute for any kind of professional advice. Use thi document creation. To customize this document with corporate marks and titles, s Footer fields of this document. The data center's power, cooling and standby power supply must be able to adequa needs. Whether IT is building, refreshing, or moving the data center, it is impo requirements. Accurate estimates of facility requirements are a critical input t Once the load estimate has been determined, IT should seek professional expertis requires specialized skills. This tool can be used to determine a high level estimation for the data center's power requirements within a range of 10%-15% accuracy. Complete the white cells follow the arrows to determine final results. Note: Some calculations in this tool are adapted from APC information. Start Calculator
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Facilities Management_1.7.2. Data Center Power and Cooling Requirements Calculator
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Data Center Power and Cooling Requirements Calculator
Info-Tech Research Group tools and template documents are provided for the free and unrestricted use of subscribers to Info-Tech ResearchGroup services. These documents are intended to supply general information only, not specific professional or personal advice, and are notintended to be used as a substitute for any kind of professional advice. Use this document either in whole or in part as a basis and guide fordocument creation. To customize this document with corporate marks and titles, simply replace the Info-Tech Information in the Header andFooter fields of this document.
The data center's power, cooling and standby power supply must be able to adequately support current and future needs. Whether IT is building, refreshing, or moving the data center, it is important to understand these requirements. Accurate estimates of facility requirements are a critical input to the project’s final budget. Once the load estimate has been determined, IT should seek professional expertise as data center construction requires specialized skills.
This tool can be used to determine a high level estimation for the data center's power, cooling, and standby power requirements within a range of 10%-15% accuracy. Complete the white cells with required information and follow the arrows to determine final results.Note: Some calculations in this tool are adapted from APC information.
Start Calculator
Data Center Power and Cooling Requirements Calculator
Info-Tech Research Group tools and template documents are provided for the free and unrestricted use of subscribers to Info-Tech ResearchGroup services. These documents are intended to supply general information only, not specific professional or personal advice, and are notintended to be used as a substitute for any kind of professional advice. Use this document either in whole or in part as a basis and guide fordocument creation. To customize this document with corporate marks and titles, simply replace the Info-Tech Information in the Header and
The data center's power, cooling and standby power supply must be able to adequately support current and future needs. Whether IT is building, refreshing, or moving the data center, it is important to understand these requirements. Accurate estimates of facility requirements are a critical input to the project’s final budget. Once the load estimate has been determined, IT should seek professional expertise as data
This tool can be used to determine a high level estimation for the data center's power, cooling, and standby power requirements within a range of 10%-15% accuracy. Complete the white cells with required information and follow the arrows to determine final results.
Required Inputs
Input Table
Item Number
Total floor area in the data center (sq. ft)1200
Enter anticipated number of future servers to be added.50
DX System
240
5
191
Enter the required information into the white cells below and click on the "Next Step" buttons to continue through the calculator.
Which cooling device is used in the data center? (select from drop down).
Enter the three phase AC voltage provided at the service entrance. (kW)
Maximum number of people in the data center? (People that will be consistently working within the data center. A maximum number should be used to account for intermittent personnel and air exchange.)
Power distribution rating (Watts)?(Total power drawn from the power distribution unit in Watts.)
Next Step >>>
Existing Server Load Calculations
Inputs
Device Name Server Model Utilization Assumption AMPS
Enter server information, along with Amps and Volts into the table below to calculate the total server load in kW for the organization. Where a power utility or calculation tool is not available from the vendor to express power requirements as kW, nameplate ratings are used to arrive at a kW input.
This tool uses the following formula for this conversion:VOLT AMPS = AMPS x VOLTSWATTS = VOLT AMPS x 0.67 kW = WATTS/1000
List each server located in the data center in the table below. Use nameplate ratings to collect amps and volts for each device to determine the kW required. Be sure to include the device name for tracking purposes.
Enter server information, along with Amps and Volts into the table below to calculate the total server load in kW for the organization. Where a power utility or calculation tool is not available from the vendor to express power requirements as kW, nameplate ratings are
List each server located in the data center in the table below. Use nameplate ratings to collect amps and volts for each device to
Enter equipment information, along with Amps and Volts into the table below to calculate the total equipment load in kW for the data center. Where a power utility or calculation tool is not available from the vendor to express power requirements as kW, nameplate ratings are used to arrive at a kW input.
This tool uses the following formula for this conversion:VOLT AMPS = AMPS x VOLTSWATTS = VOLT AMPS x 0.67 kW = WATTS/1000
List each equipment device located in the data center in the table below (other equipment includes switches, routers, etc.). Use nameplate ratings to collect amps and volts for each device to determine the kW required. Be sure to include the device name for tracking purposes.
Inputs Outputs
WATTS kW
257 257 0.25713.657360 0.36
1608 1608 1.608150 150 0.15
Average Equipment Load (kW)360 0.361608 1608 1.608
Enter equipment information, along with Amps and Volts into the table below to calculate the total equipment load in kW for the data center. Where a power utility or calculation tool is not available from the vendor to express power requirements as kW, nameplate ratings are used to arrive at a kW input.
List each equipment device located in the data center in the table below (other equipment includes switches, routers, etc.). Use nameplate ratings to collect amps and volts for each device to determine the kW required. Be sure to include the device name for tracking purposes.
WATTS (Enter if volts and
amps are not available)
Total Existing Equipment Load (kW)
Next Step >>>
Server Room Power and Load Requirements Estimates
The following table summarizes the power load requirements for the organization's data center environment based on the inputs gathered in Tabs 1-3.
Item Description
Power Requirement - Electrical
Existing or actual equipment load
Estimated future loads
Peak power draw from variation in critical loads
UPS inefficiency and battery charging Actual and future loads (kW).
Lighting
Total power required to support electrical demands
Power Requirement - Cooling
Power to support chiller system
Power to support DX system
Total power required to support cooling demands Power drawn from cooling devices.
Total Power Requirement
Size of Electrical Service Estimate
Regulator (i.e.NEC) requirements
Three phase AC voltage
Utility company estimate.
Ratings for servers and other equipment (calculated in Tab 3 and 4).
Based on the average server load and anticipated number of future servers to be added.The total steady state load. Based on current and future loads.
Based on the floor area in the server room.
Power drawn from servers, equipment, UPS, and lighting.
Based on the standard assumption that power required is 70% of total electrical demand.
Based on the standard assumption that power required is 100% of total electrical demand.
Total amount of power required to support both electrical and cooling demands
Total amount of power required that includes current and future needs for power and cooling.
Total electrical and cooling requirements multiplied by 1.25 to meet regulator's requirements.Existing AC voltage from building (can be found at service entrance).
Electrical service required from utility company (calculated in Amps)
Size of Standby Generator Estimate (if Applicable)
Critical loads that require generator backup
Cooling loads that require generator backup
Estimated size of generator required
Based on total power to support electrical demand.Based on total power to support cooling.
Server Room Power and Load Requirements Estimates
The following table summarizes the power load requirements for the organization's data center environment based on the inputs gathered in Tabs 1-3.
Subtotal kW
Power Requirement - Electrical 1150.615
92.450
45.283
144.620 535.064
44.075
2.400
191.094
Power Requirement - Cooling 0.959
N/A
191.094
191.094
Total Power Requirement
382.188
Size of Electrical Service Estimate
477.735
240.000
1150.615
Next Step >>>
Total electrical service required from utility company in Amps
Size of generator needed (estimated in
kW)
Electrical service required from utility
company in Amps per sq. ft
Size of Standby Generator Estimate (if Applicable)
248.422
286.641
535.064
Cooling Requirements Estimation
The following table summarizes the cooling load requirements for the organization's data center environment.
Item Description
Total existing server and storage load
Total existing equipment load
Estimated future loads
UPS inefficiency and battery charging
Power Distribution (PDU)
Lighting
People
Total Estimated Cooling Load
Total Estimated Cooling Load (in Tons)
Total heat given off from server and storage devices in the data center.Total heat given off from other equipment located in the data center.The amount of heat given off from expected future devices to be added in the data center.Total heat given off from the UPS or backup battery located in the data center.Total heat given off from the power distribution unit located in the data center.Amount of heat given off from lighting in the data center. Based on the total amount of floor area in the data center. (2.0 x Floor Area in sq. ft.)Amount of heat given off from the maximum number of employees working in the data center. The total size of cooling load required to cool the data center.
The required sizing for a cooling device measured in tons based on the total estimated cooling load/heat output.
Cooling Requirements Estimation
The following table summarizes the cooling load requirements for the organization's data center environment.
Watts BTUs per Hour
78792.76 268683.31
13657.00 46570.37
45283.20 154415.70
44074.55 150294.20
2756.57 9399.90
2400.00 8184.00
500.00 1705.00
187464.07 639252.48
53.27 TONS
Next Step >>>
Standby Power Requirements Estimation
The following table summarizes the standby power load requirements for the organizations' data center environment.
Item
Server load power requirements
Other equipment power requirements
Estimated future load requirements
Cooling load requirements
Emergency lighting power load
Total size of load requiring standby power
Standby Power Requirements Estimation
The following table summarizes the standby power load requirements for the organizations' data center environment.
Description kW
78.793
13.657
45.283
187.464
2.400
327.597
Next Step >>>
Total estimated power requirements for servers and storage devices located in the data center. Total estimated power requirements for other equipment (routers, computers, switches, convenience plugs etc.) located in the data center. Based on the average server load and anticipated number of future servers to be added.Total size of cooling load required to cool the data center based on the total heat output.Total load required to power emergency lighting in response to an outage.Total load that will require a standby power supply in the event of an outage.
Data Center Requirements Estimates Results Summary
Item Description Total Unit
Power Requirements Results Summary
Total Existing Server Load 78.793 kW
Average Server Load Average power load per server in the data center. 0.906 kW
Total Existing Equipment Load 13.657 kW
Average Equipment Load 0.141 kW
1150.615 Amps
0.959 Amps
Size of Generator Needed 535.064 kW
Cooling Requirements Results Summary
Total estimated cooling load (BTUs/Hr) 639252.480 BTUs
Size of cooling device required (in tons) 53.271 Tons
BTUs per square foot 532.710 Sq. ft
Number of 20-ton air conditioners required 2.664 AC Units
Standby Power Requirements Results Summary
Total data center load requiring standby power 327.597 kW
Over sizing for backup power at 75% 245.698 kW
UPS requirements Amount of load requiring a UPS system. 573.295 kW
Generator required in kW 573.295 kW
Generator required in kVA 687.954 kVA
The following table summarizes the complete results from Tabs 1 - 4 that estimate the organization's critical power, cooling, and standby power requirements for the data center.
Total power load required to support the data center's servers.
Total power load required to support other equipment in the data center.Average power load per piece of other equipment in the data center.
Total Electrical Service Required From Utility Company in Amps
Power to be requested from the utility company to aid in budgeting.
Total Electrical Service Required From Utility Company in Amps per Sq. Ft
Power to be requested from the utility company per square foot in the data center to aid in budgeting.
Size of generator required to support server and other equipment as backup power.
The total size of cooling load required to cool the data center based on the total heat output.The required sizing for a cooling device measured in tons required to cool the data center based on the total estimated cooling load/heat output.The amount of cooling required per square foot in the data center.
Cooling requirements distributed amongst 20-ton air handlers for the data center. If the number is not a whole number, it shoud lbe rounded up to the nearest whole number.
Total load that will require a standby power supply in the event of an outage.Over sizing for future load requirements with an additional 75% standby power supply.
Size of generator required to power data center in case of an outage. kVA calculations take a power factor of 0.8 into account.
Size of generator required to power data center in case of an outage. kVA calculations take a power factor of 0.8 into account.