Efficiency potentials at existing datacentres

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This presentation informs on the energy saving potential in data centres.Markus Offermann, Managing Consultant Buildings at Ecofys, gave this presentation on datacentre cooling during the 8th International Conference Improving Energy Efficiency in Commercial Buildings (IEECB) on 3 April 2014 in Frankfurt.

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Efficiency potentials at existing datacentres

  1. 1. Efficiency potentials at existing datacentres Datacentre cooling Dipl.-Phys. Markus Offermann 03/04/2014
  2. 2. © ECOFYS | | Example: Server room in a datacenter in Hannover 03/04/2014 Dipl.-Phys. Markus Offermann Key Parameters: Construction year: 2000 Size: 245 m² Load of IT Equipment: 59 kW Ventilation rate: 55.000 m³/h Installed cooling capacity: 175 kW Annual el. demand: 1 GWh Annual energy costs: 140.000 €
  3. 3. © ECOFYS | | Annual energy demand of a server room in Hannover 03/04/2014 Dipl.-Phys. Markus Offermann IT Equipment Cooling Systems EUE = 2,04 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  4. 4. © ECOFYS | |03/04/2014 Dipl.-Phys. Markus Offermann EUE = 2,04 Fans: 55 % Pumps: 16 % Compressors: 16 % Annual energy demand of a server room in Hannover Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  5. 5. © ECOFYS | | Implemented measures Measures Costs 1. Reduction of circulation air amount 2. Switch off/standby not required air conditioning systems 3. Adapt volumes of brine pumps 4. Parameter optimization (cooling, internal temperature settings) Sum 1-4: 2.000€ 5. Exchange of old inefficient brine pump 7.500 € 6. Exchange of old inefficient fans (@ 4 air conditioning systems) 24.000 € 7. Exchange of one old rooftop unit 30.000 € Sum 63.500 € 03/04/2014 Dipl.-Phys. Markus Offermann
  6. 6. © ECOFYS | |03/04/2014 Achieved savings EUE = 2,04 EUE = 1,28 Total energy reduction: - 38 % Reduction of energy for cooling: -75 % Amortisation time < 2 a (el. price 13 ct/kWh) Dipl.-Phys. Markus Offermann Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  7. 7. © ECOFYS | | Thank you for your attention > Markus Offermann Managing Consultant Buildings Ecofys Germany GmbH m.offermann@ecofys.com 03/04/2014 Dipl.-Phys. Markus Offermann

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