When energy saving advice leads to more, rather than less, consumption

Revell, K. M. A. and Stanton, Neville (2015) When energy saving advice leads to more, rather than less, consumption. International Journal of Sustainable Energy, 1-19. (doi:10.1080/14786451.2014.999071).

Abstract

Energy saving technology that relies on behaviour change fails to deliver on its promise. Energy saving advice also has limited effect. This paper examines and reveals how technology and energy saving advice interacts with householders’ thought processes to influence energy consumption. A case study of three households that held a ‘Feedback’ mental model of the home heating thermostat, as defined by Kempton [1986. ‘Two Theories of Home Heat Control’. Cognitive Science 10 (1): 75–90], was undertaken to understand the driver behind differences in their home heating strategies, and the effect on energy consumption. Analysis was undertaken from five different data sources comprising: (1) boiler on durations, (2) thermostat set point adjustments, (3) self-reported strategies with home heating controls, (4) user mental model descriptions of the home heating system, and (5) Interview transcripts. The authors found that differences in user mental models of home heating at the system level explained differences in the strategies chosen at the control device level. Differences in boiler on periods were found to relate to limitations of the ‘Feedback’ mental model; that is, the model fails to consider the effect of the movement of warm air within the home and the impact of internal/external temperature differentials on heat loss rates. The authors argue that technology and advice should be tailored to the thought processes adopted by householders in order to promote behaviour that would realise intended energy savings.

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Contributors

Author: Neville Stanton

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