Intelligent Energy Management Made Simple

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Intelligent Energy Management Made Simple
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Cooling problems

• Server manufacturers specify inlet air
  temperatures
• Conventional controls dont measure it
• Overcooling
• Inefficiency
• Hot spots

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Cooling control is difficult

• Open plan design
• All cooling units affect all areas
• Redundant cooling units
• Can lead to fighting
• Custom control software is expensive and
  unreliable
• Cant have a PhD commission every datacenter

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What we do
lt 2yr ROI
Control
Analysis
Insight
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How we do it

• Measure inlet air temps
• Supervisory control
• Learning algorithms
• Installed in days

Wireless Module
Temperature Probes
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Recommended deployment strategy

• Install controls first
• Immediate automated energy savings
• Excellent complement to IT-side best practices
• Persistent Commissioning
• Determine where and how to improve
• Cost effective deployment of best practices

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Case Study 1 Franchise Tax Board

• The Data center
• 10,000 SF
• 12 CRAHs (22 tons each)
• 40 built out
• The solution
• 50 wireless inlet server temperature sensors
• 4 VFDs installed
• Re-arranged tiles
• Reset setpoints of CRAHs
• Automatic start-stop of CRAHs

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Case Study 1 Energy Savings

• Software shut off 6-8 CRAH units
• All temperatures within ASHRAE recommended range
• 310,000 kWh/year saved
• 245,000 kWh/year fan savings
• 65,000 kWh/year chiller savings
• 27,900/year saved (0.09/kWh)
• 58 reduction in fan energy usage
• 13.4 reduction of total datacenter energy usage

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Case Study 2 Bay Area

• The Data center
• 5,000 SF
• 6 CRAHs (22 tons each)
• 130 racks
• The solution
• 48 inlet air temperature sensors
• 6 VFDs with wireless controls
• No other efficiency measures taken
• One-day installation

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Case Study 2 Energy Savings

• 300,000 kWh/year saved
• 218,000 kWh/year verified fan savings
• 82,000 kWh/year estimated chiller savings
• 27,000/year saved (0.09/kWh)
• 80 reduction in fan energy usage
• 17 reduction of total datacenter energy usage

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Customer perspective
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Summary

• Excellent ROI from supervisory cooling control
• Quick and non-intrusive installation
• Enables cost-effective application of best
  practices
• Excellent complement to IT-side best practices