The cost of virtue : reward as well as feedback are required to reduce user ICT power consumption
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We show that students in a school lab environment will change their behaviour to be more energy efficient, when appropriate incentives are in place, and when measurement-based, real-time feedback about their energy usage is provided. Rewards incentivise `non-green' users to be `green' as well as encouraging those users who already claim to be `green'. Measurement-based feedback improves user energy awareness and helps users to explore and adjust their use of computers to become `greener', but is not sufficient by itself. In our measurements, weekly mean group energy use as a whole reduced by up to 16%; and weekly individual user energy consumption reduced by up to 56% during active use. The findings are drawn from our longitudinal study that involved 83 Computer Science students; lasted 48 weeks across 2 academic years; monitored a total of 26778 hours of active computer use; collected approximately 2TB of raw data.
Yu , Y & Bhatti , S N 2014 , The cost of virtue : reward as well as feedback are required to reduce user ICT power consumption . in Proceedings of the 5th International Conference on Future Energy Systems . e-Energy '14 , ACM , New York, NY, USA , pp. 157-169 . DOI: 10.1145/2602044.2602063
Proceedings of the 5th International Conference on Future Energy Systems
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This work was partly supported by the IU-AC project, funded by grant EP/J016756/1 from the Engineering and Physical Sciences Research Council (EPSRC).
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