1. Supporting Domestic Energy Reduction Via Persuasive Technology Cornelia Gerdenitsch Johann Schrammel Wolfgang Reitberger Manfred Tscheligi

2. Frankfurt (Germany), 6-9 June 2011  Problems Power consumption is abstract and invisible Lack of awareness – predictors & consequences  Reducing power consumption, shifting loads (minimizing peak loads)  Increased frequency of energy bills  Metering devices Cornelia Gerdenitsch – Austria – RIF Session 6 – Paper 1003 Domestic Energy Consumption

3. Frankfurt (Germany), 6-9 June 2011 Three categories 1.Paper-based efforts 2.Ambient devices 3.Software programs for visualizing energy consumption Cornelia Gerdenitsch – Austria – RIF Session 6 – Paper 1003 Energy-related Feedback Power aware cord, Gustaffson, 2005 Energy orb Wattson Green Pocket

4. Frankfurt (Germany), 6-9 June 2011  Energy savings Direct feedback: 5-15% Indirect feedback: 0-10% Depending on the quality of feedback (Darby, 2006)  Best feedback (Fischer, 2008) Computerized feedback Multiple feedback options Interactive elements High frequency Cornelia Gerdenitsch – Austria – RIF Session 6 – Paper 1003 The Effect of Energy-related Feedback

5. Frankfurt (Germany), 6-9 June 2011 Cornelia Gerdenitsch – Austria – RIF Session 6 – Paper 1003 The Effect of Energy-related Feedback from 0 to 15% energy savings depending on the quality of feedack

6. Frankfurt (Germany), 6-9 June 2011  “Persuasion is defined as an attempt to change attitudes or behaviors or both without using coercion or deception.” (Fogg 2003)  Interactive Computer Technology can be used to change people’s attitudes and behavior  Computers as Persuasive Technology Cornelia Gerdenitsch – Austria – RIF Session 6 – Paper 1003 Persuasive Technology

7. Frankfurt (Germany), 6-9 June 2011  1. Self-monitoring Provide the possibility for users to monitor their actual consumption (real-time), as well as their previous consumption. Cornelia Gerdenitsch – Austria – RIF Session 6 – Paper 1003 Persuasive Strategies Google power meter

8. Frankfurt (Germany), 6-9 June 2011  2. Tailoring Benefits should be adapted to the needs of different user groups: monetary savings, social component, environmental aspects, knowledge. Cornelia Gerdenitsch – Austria – RIF Session 6 – Paper 1003 Persuasive Strategies Attitudes House- hold Social Milieu Gender Age Values

9. Frankfurt (Germany), 6-9 June 2011  3. Suggestion Attitude – action gap Providing hints about energy efficiency of appliances Instructions should be sensitive to the time and context e.g. suggesting an energy-efficient light bulb when the consumer is in a usage situation Cornelia Gerdenitsch – Austria – RIF Session 6 – Paper 1003 Persuasive Strategies

10. Frankfurt (Germany), 6-9 June 2011  4. Reduction Using computing technology to reduce complex behaviour to simple tasks Cornelia Gerdenitsch – Austria – RIF Session 6 – Paper 1003 Persuasive Strategies Kappel, 2009 Laschke, 2011

11. Frankfurt (Germany), 6-9 June 2011 Summary  Focus on the quality of feedback  Integrating persuasive strategies in designing energy-related feedback Over 28 persuasive strategies used Information and Communication Technologies Cornelia Gerdenitsch – Austria – RIF Session 6 – Paper 1003

12. Frankfurt (Germany), 6-9 June 2011 Outline  Consumer2Grid (2010-2012) Comparing energy-related feedback methods within a one year study (N=250)  PEEM (Persuasive End-User Energy Management; 2010-2012) Developing new energy-related feedback concepts User-centric design approach Integrating persuasive strategies Cornelia Gerdenitsch – Austria – RIF Session 6 – Paper 1003

13. Thank you for your attention Cornelia Gerdenitsch gerdenitsch@cure.at