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AN OVERVIEW OF ENERGY STAR PowerPoint Presentation
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AN OVERVIEW OF ENERGY STAR

AN OVERVIEW OF ENERGY STAR

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AN OVERVIEW OF ENERGY STAR

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  1. AN OVERVIEW OF ENERGY STAR Lisa Hopkinson University of Bradford

  2. LIFE CYCLE IMPACTS Transport Materials Recycling Disposal Manufacture Use

  3. ENERGY STAR • Voluntary labelling scheme for energy efficient office products • Defines minimum energy criteria • Database of most energy efficient models • Only deals with energy IN USE • Updated every 2-3 years • www.eu-energystar.org

  4. LIFE CYCLE ENERGY OF PCS Source: IVF, 2007. Preparatory studies for Eco-design Requirements of Energy Using Products

  5. ENERGY STAR STATUS

  6. UNIVERSITY OF SHEFFIELD – ICT ENERGY BREAKDOWN Desktops dominate Analysis by Chris Cartledge, 2008

  7. ENERGY STAR V. 5.0 –for Computing Equipment Covers desktop computers, gaming consoles, integrated desktop computers, notebook computers, small-scale servers, thin clients, and workstations. Efficient power supply (internal & external) required. Defines minimum energy performance standards

  8. TYPICAL ENERGY CONSUMPTION (TEC) Minimum annual energy consumption – based on weighted time spent in each mode (idle, sleep, off). For desktops and notebooks: ETEC = (8760/1000) x (Poff x Toff + Psleep x Tsleep + Pidle x Tidle)

  9. ENERGY STAR ENERGY PERFORMANCE Desktops: Notebooks: Category A ≤ 148kWh Category A ≤ 40kWh Category B ≤ 175kWh Category B ≤ 53kWh Category C ≤ 209kWh Category C ≤ 88.5kWh Category D ≤ 234kWh Different formulae and performance standards for workstations and small servers

  10. RAISING THE BAR Apr 2008: 137 models meeting Energy Star 4 June 2009: 875 models meeting Energy Star 4 1 July 2009: 0 models meeting Energy Star 5

  11. ENERGY STAR 4.0 vs 5.0 Energy Star 5, Category B, ETEC= 175 kWh/y Dell Optiplex 760 Desktop ETEC = 200 kWh/y (non networked)

  12. WHOLE LIFE COSTING • Energy Star 5.0, Category B = 175 kWh/y • Typical Energy Star 4 PC ~ 230 kWh/y Over 4 year lifetime (@ 12p/kWh): Energy Star 5 (Cat B) = £84 Energy Star 4 ~ £110 For 5,000 PCs, saving ~ £130,000

  13. IMPLICATIONS • Consider whole life costs of any purchase • Specify Energy Star compliance • OR select high efficiency low power PCs e.g. desktops based on laptop technology

  14. THANK YOU! For more information contact: l.m.hopkinson@bradford.ac.uk Tel: 01246-239289 www.susteit.org.uk www.heepi.org.uk