Study on the interactive evolution mechanism of residents' energy use behavior in shared living spaces.

Guiding residents of shared living spaces to implement energy-saving behaviors can help improve building energy efficiency and promote the realization of the Carbon Peaking and Carbon Neutrality Goals. Since there are different subjects with different energy-use behaviors in shared living spaces, exploring how these heterogeneous subjects interact with each other is the key to guiding the energy-saving behaviors of residents in shared living spaces. Therefore, based on the evolutionary game theory, this study quantifies the utility of heterogeneous subjects under different combinations of strategies from five dimensions: social, environmental, economic and comfort needs, and effort, and constructs a mechanism model of the interaction and evolution of energy-use behaviors of heterogeneous subjects in shared living spaces. Subsequently, the student dormitory is taken as an example, data are obtained through questionnaires and matlab is used to analyze the interactive evolution process of heterogeneous subjects' energy-use behaviors, findings demonstrate that enhancing the likelihood of heterogeneous individuals adopting energy-saving strategies can be achieved through various means. When the time spent with roommates is 0-1 year, effective approaches encompass enhancing interpersonal relationships, diminishing comfort levels, heightening attention to energy-related concerns, escalating the cost associated with energy consumption, mitigating the effort required for habituating energy-use changes, bolstering perceived behavioral control, and augmenting perceived behavioral control. These efforts serve to render energy-use behaviors of heterogeneous subjects more efficacious. Furthermore, when the time spent with roommates is 1-2 years, adjustments such as judiciously reducing comfort levels or elevating the costs associated with energy consumption can be implemented. Finally, when the time spent with roommates is 2-3 years, interventions involve fostering collective consensus on energy conservation, diminishing comfort levels, or reinforcing individual norms.