Hotel guests changed their resource-use behaviour when they received feedback on their consumption in real time, even though they did not know that they were part of a study and had no financial incentives. Behavioural interventions provided by digital technologies are a scalable and cost-effective policy instrument for fostering resource conservation.
Messages for policy
Real-time feedback can be a scalable and cost-effective instrument for fostering resource conservation among the broader public.
Real-time feedback should be provided on the environmental impact of a specific activity (rather than on aggregate household electricity use), focusing on selected energy-intensive domains.
Public facilities such as schools, public transportation, or universities should be equipped with metering devices that can provide activity-specific feedback in real time.
Environmental motives alone are an effective driver of resource conservation, hence sustainability campaigns do not need to focus on financial benefits.
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Funding for the original work was provided by the MTEC foundation of ETH Zurich (data analysis) as well as by Swiss Mobiliar insurance (hardware, deployment).
V.T., A.W. and E.F. declare no competing financial interests. T.S. and S.S. are co-founders of and hold shares in Amphiro AG, the small to medium enterprise that manufactures the smart shower meters. T.S. and S.S. were not involved in the data analysis, hotel selection or room assignment.
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Tiefenbeck, V., Wörner, A., Schöb, S. et al. Real-time feedback reduces energy consumption among the broader public without financial incentives. Nat Energy 4, 831–832 (2019). https://doi.org/10.1038/s41560-019-0480-5