Greenization and Digitization Transformation of Hydrogen Energy Technology Based on a Fuzzy Decision-Making Model

The global energy transition is increasingly driven by hydrogen energy, making digital green innovation crucial for hydrogen energy enterprises. This article explores effective strategies for these enterprises to select digital green innovation partners and provides actionable guidance for their transformation and development. First, an evaluation index system is developed using fuzzy set theory, grounded in the principles of digital green innovation partner selection for hydrogen energy enterprises. Next, a dual-combination weighting evaluation method is proposed, integrating combination weighting theory and field theory to build a decision model that supports partner selection for these companies. The model is then applied in a real-world case analysis of Baotailong, demonstrating its practical effectiveness in addressing digital green innovation challenges within hydrogen energy enterprises. The study concludes that a green and digital transformation approach, guided by a fuzzy decision-making model, enables hydrogen energy companies to identify suitable innovation partners. This approach not only aligns with the broader trends of socio-economic development but also enhances the companies’ core competitiveness.