Included in the CHEMCAD flowchart simulation model, this VBA source code extracts the inputs for the machine learning (ML) model from the simulation, passes them to the machine ML (Python), and sends the ML model outputs back to the simulation model. This code is not provided for direct use, but rather to demonstrate the methodology and as an aid for interested parties to develop their own solutions.

This document provides supplementary material supporting the Conference Paper “A Multi-Objective Optimisation and Superstructure-Based Decision-Support Tool for Regional Low-Carbon Hydrogen Roadmaps: Methodology and Application to a region of Spain”.

It includes additional methodological details, input data, model assumptions, and extended results that complement the analyses presented in the main manuscript.