Journal
WATER RESOURCES AND ECONOMICS
Volume 34, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.wre.2020.100175
Keywords
Behavioral insight; Nudge; Social comparison; Smart water meter; Water conservation; Cape town drought; Day zero
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The research shows that in some schools in Cape Town, interventions using smart technology and nudges can effectively reduce water usage, providing a model for water conservation interventions for sustainable cities.
The city of Cape Town suffered a severe water crisis in 2018. At the peak of the drought in South Africa's Western Cape, a randomized control trial at 105 schools investigated the impact of two behavioral interventions to encourage responsible water usage: detailed water usage data feedback from smart meters, and an interschool competition. Interventions reduced water usage in these schools by 15-26%. There was no significant difference between the information feedback and the combination of information feedback and competition. This example from Cape Town demonstrates the effectiveness of combining smart technologies with nudges. It provides a model of water conservation interventions for sustainable cities.
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