Purpose: This paper aims to introduce a case-based module teaching sustainable engineering, linking the Envision rating system with behavioral decision science. Three complete modules are publicly available in a repository for any instructor to adapt, use and review. Design/methodology/approach: A case study was written about the Tucannon River Wind Farm, a project-certified Gold by the Institute for Sustainable Infrastructure's Envision™ rating system. The case was used as the basis for an in-class PowerPoint module to achieve student learning outcomes related to sustainability. Findings: Before and after surveys showed significant (p < 0.05) learning increases. Word clouds show changes in student perceptions of sustainable design. Rubric scoring of writing assignments and concept maps yielded valuable insights and improvements and demonstrated the overall validity of the module approach. Research limitations/implications: Modules lasting only one or two class days must be well-integrated into courses and curricula to promote greater learning value. Concept mapping may be a useful addition but involves a learning curve for both instructors and students. Practical implications: By offering instructors access to a set of case-based modules, it becomes more practical for them to teach about sustainable infrastructure and decision-making. Social implications: The module exemplifies a project owner and an engineering firm strongly committed to social and environmental sustainability. Envision's Quality of Life and Leadership categories emphasize community well-being, involvement and collaboration. Originality/value: This module offers a unique transdisciplinary focus meeting several needs in engineering education on sustainability, complex problems and decision-making.