Revisiting the Energy-Saving Behavior of Hotel Guests: An Integrated Model of TPB and NAM in Vietnam

This paper explores the energy-saving behavior of hotel guests in the Vietnamese context. We adapted the theory of planned behavior (TPB) and the norm activation model (NAM) to develop a research model with six determinants of energy-saving intention and behavior. A self-administered online survey was implemented to collect data from hotel guests in Hanoi and Quang Ninh provinces. After 4 months, we received 253 valid responses for further analysis. SmartPLS 4.0 software was employed for structured equation model testing. Our findings showed that TPB variables and NAM variables jointly explain the energy-saving intention and energy-saving behavior of Vietnamese hotel guests. Among the three factors of TPB, subjective norms have the most substantial impact on energy-saving intention and a significant direct effect on energy-saving behavior. Meanwhile, awareness of consequences does not significantly affect personal norms, and in turn, personal norms do not directly affect energy-saving behavior. Thus, we proposed several solutions to hotel managers to promote energy-saving initiatives and attract the engagement of their guests in these initiatives.