Data underlying the study: Reinforcement Learning-Guided Dandelion Optimizer for Techno-Economic Optimisation of PV–PEM Hydrogen Production Systems

This dataset accompanies the manuscript entitled "Reinforcement Learning-Guided Dandelion Optimizer for Techno-Economic Optimisation of PV–PEM Hydrogen Production Systems" (Manuscript ID: PONE-D-26-36441R1), submitted to PLOS ONE. The dataset contains 21 Excel files (Table 1–Table 21) corresponding to the tables presented in the manuscript. These files provide the numerical values reported in the tables and are made publicly available to support the verification and reproducibility of the reported research findings.