The functioning of the energy sector in Poland has been changing over recent years, influenced by growing concern for the environment. The concept of inclusive leadership can play a key role in the emergence of behavioral changes related to the development of environmental awareness and the initiation of pro-environmental attitudes and behaviors by employees. The guiding objective of this study is to verify a moderated mediation model of the impact of pro-environmental consciousness (PEC) on the mediating role of the fulfillment of the psychological contract for the environment (PCFE) in pro-environmental inclusive leadership (PEIL) and pro-environmental work behavior (PEWB) relationships in the energy industry. By self-completing a survey questionnaire using the computer-assisted web interview (CAWI) method, responses were collected from 649 respondents employed in various energy industry organizations. Structural equation modelling based on maximum likelihood with bootstrap estimation was used to test the hypothesis model. The findings confirm the assumptions of the research model, demonstrating a direct relationship between pro-environmental inclusive leadership and pro-environmental work behavior. Additionally, a mediating condition was found, where the fulfillment of the psychological contract for the environment mediates the relationship between pro-environmental inclusive leadership and pro-environmental work behavior, and pro-environmental consciousness moderates this process. It was found that higher pro-environmental consciousness enhances the indirect effect of pro-environmental inclusive leadership on employees’ pro-environmental work behavior through the fulfillment of the psychological contract for the environment. This highlights the importance of the fulfillment of the psychological contract for the environment and a pro-environmental consciousness in the effectiveness of pro-environmental leadership. The analysis indicates that managers who apply a pro-environmental inclusive management style contribute to an increasingly pro-environmental consciousness and the promotion pro-environmental work behavior among employees. Furthermore, the indirect effect of green leadership on employees’ green actions, through the fulfillment of a psychological contract for the environment that is moderated by their pro-environmental consciousness, highlights the importance of environmentally conscious leaders in building effective employee–employer relationships. These relationships facilitate the implementation of initiatives that accelerate the pace of change and enhance efforts to build tomorrow’s modern energy industry based on low- and zero-carbon energy sources. Additionally, this is one of the first studies in the Polish energy industry to provide insight into the role and importance of green leadership and green behavior in the energy industry.