The application of renewable energy has positively contributed to the Eco-city by alleviating energy tension, improving energy structure, enhancing energy utilization efficiency, and building a resource-saving and environment-friendly society. At the same time, several demonstration projects with advanced and applicable technology, stable and reliable operation, and high promotion value have been completed, and a relatively complete system of regulations, policies, technical standards, application modes, and capacity building for the application of renewable energy buildings has been initially formed. This study analyzes the current global demand for renewable energy and education status quo and proposes a set of teaching programs combined with practical applications. In response to the needs, a comprehensive framework integrating theoretical teaching, hands-on practice, rigorous program evaluation, and dynamic feedback loops is designed to cultivate students' global perspectives and emphasize the importance of cross-cultural dialogue and international cooperation. The implementation results showed a significant improvement in the students' understanding of renewable energy, with a 40% improvement at the end of the class. As a result of the IEP implementation, 85% of the students targeting the Renewable Energy Applications Program have achieved the expected teaching objectives in terms of energy and environmental policy comprehension, renewable energy technology mastery, and intercultural communication skills, which is a 30% improvement from the pre-implementation period. In addition, there has been a significant increase in international exchanges between students, contributing to creating a more holistic approach to sustainable development.