AMODELO MULTICRITÉRIO PARA AVALIAÇÃO DAS ROTAS TECNOLÓGICAS DE PRODUÇÃO DO HIDROGÊNIO VERDE

Abstract

Green hydrogen has been consolidated as a strategic vector for the decarbonization of hard-to-abate industrial and energy sectors, especially in countries with a high share of renewable sources in the power mix, such as Brazil. In this context, this work aims to prioritize application alternatives for green hydrogen produced in an experimental plant installed at a Brazilian university, treating the problem as a multicriteria decision under budget constraint.To this end, a quantitative case study was developed, in which seven application alternatives are evaluated according to five criteria: economic feasibility (specific CAPEX), potential market demand, technical feasibility (specific hydrogen consumption), emissions reduction, and storage and transport logistics. The data were obtained from engineering studies of the plant, foreign trade databases and specialized literature, and were consolidated into a decision matrix fed into the FITradeoff method, in its cost–benefit variant. The preferences were elicited from the director responsible for the experimental plant, considered the decision maker in the process.The results indicate that the optimal portfolio for a budget of US$ 5,000,000.00 is composed of the alternatives green methanol, electricity from fuel cells, green ammonia and green steel, using approximately 81% of the available resources. The study contributes by demonstrating the applicability of multicriteria models to energy planning problems at pilot scale, offering a structured decision-support tool for the management of a green hydrogen plant.