Abstract: The technological innovation of clean energy projects, as a comprehensive project that spans multiple disciplines and fields, is crucial for promoting industry development. Its previous studies lack systematic identification of the key factors and a comprehensive understanding of the process of innovation from a holistic, systemic perspective. This article uses the grounded theory to identify the key factors that affect innovation, and based on this, constructs and verifies a theoretical model of clean energy projects innovation, and reveals the mechanism of innovation. We also clarify the relationship between innovation management systems, enterprise innovation strategies, resource allocation, collaborative innovation, independent innovation, technological innovation output and transformation, and project performance. Finally, a strategy for future innovation in clean energy projects is suggested. The research findings would lay a theoretical basis and help practical innovation in such projects.

Key words: clean energy projects, innovation, theoretical model, innovation strategy