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Upfront Costs & Power Overheads:
Category | Value/UOM | Source/Notes |
---|---|---|
Server Power Savings | 18% | Benchmark from USAF test results (some applications as high as 30%) |
Chiller Overhead | 25% of IT Load | Customer Validated Data |
Chiller Cost | $0.34/Watt | Based on $1,500/ton and 20% FOS (Factor of Safety) |
GRC CDU Cooling Overhead | 2% of IT & Cooling Power | Customer Validated Data |
Cooling Tower Overhead | 2% of IT & Cooling Power | Customer Validated Data |
Cooling Tower Cost | $0.22/Watt | Customer Validated Data |
Raised Floor | $30/Sq Ft | Panels $17-30/Sq Ft, plus Installation Labor |
Air Handler Overhead | 10% of IT Load | Customer Validated Data |
Air Handler Cost | $0.62/Watt | Vendor Quotes & Customer Data |
UPS Cost | $0.92/Watt | Vendor Quotes & Customer Data |
Diesel Generator & Switch Gear Cost | $0.29/Watt | Vendor Quotes & Customer Data |
Electrical Infrastructure & Power Distribution Cost | $0.42/Watt | Vendor Quotes & Customer Data |
Maintenance Cost | 3% of Upfront Cost | Forrester: http://www.onepartner.com/data-center-costs |
Annual Maintenance Cost Increase | 1% | Accounting for Inflation |
Annual Energy Cost Increase | 1% | Accounting for Inflation |
Power Distribution Losses | 6% of Total Power | Data Center Dynamics: DCPRO: Cooling & Thermal Management Paper |
Air Cooling Max Rack Density | 15 kW/Rack | Customer feedback |
Fully Loaded Floor Space/Rack for Air Cooling | 79 Sq Ft/Rack | Green Grid Estimate |
Cost of GRC System | $0.96/Watt | |
Plumbing & Ducting for Air-Cooled | $0.60/Watt | Customer Validated Data |
Plumbing Costs GRC | $0.30/Watt | Customer Validated Data |
Sensors & Controls | $0.15/Watt | Customer Validated Data |
Traditional Data Center Engineering and Design Services | 20% of Total Cost | Forrester: http://www.onepartner.com/data-center-costs |
GRC Data Center Engineering & Design Services | 10% of Total Cost | Customer feedback |
Cost of Traditional Racks | $1,500.00/Rack | Vendor Quotes & Customer Data |
Space (Traditional):
Category | Value/UOM | Source |
---|---|---|
Rack Size | 42U | |
Top of Rack (TOR Switches) | 2U | |
Server Capacity Rack | 40U | |
Width (Length for GRC) | 26.62 Inches | Liebert 42U: http://www.42u.com/42U-cabinets.htm |
Depth (Width for GRC) | 43.3 Inches | Liebert 42U: http://www.42u.com/42U-cabinets.htm |
Cold Aisle Width | 48 Inches | ANSI/TIA/ EIA-942-A (data center) standard: https://www.conteg.com/hot-cold-aisle |
Hot Aisle Width | 36 Inches | ANSI/TIA/ EIA-942-A (data center) standard: https://www.conteg.com/hot-cold-aisle |
Supported Density | 15 kW/Rack | Customer Feedback |
Racks/Row | 12 | Calculated to get similar row width |
Row Width | 34.62 Feet | Including 4 ft aisle at each end |
Space (GRC):
Category | Value/UOM | Source |
---|---|---|
Rack Size | 42U | |
Top of Rack Switches | 0U | Switch pockets in the back of the GRC rack allow for more server capacity in rack |
Server Capacity/Rack | 42U | |
Width (Length for GRC) | 85 Inches | |
Depth (Width for GRC) | 25 Inches | |
Cold Aisle Width | 36 Inches | |
Hot Aisle Width | 2 Inches | |
Supported Density | 120 kW/Rack | Conservative estimate, 130kW+ achieved |
Racks/Row | 4 | |
Row Width | 35.94 Feet |
Space Cost:
Category | Value/UOM | Source | |
---|---|---|---|
Traditional Site Preparation Cost | $150.00/Sq Ft | Forrester: http://www.onepartner.com/data-center-costs | |
GRC Site Preparation Cost | $150.00/Sq Ft |
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