The next step of the global energy transition will probably be based on the hydrogen economy in order to guarantee a sustainable future. Therefore, this study examines the possibilities for expanding the hydrogen market in the Brazilian electric power sector in a model that will contribute to the country taking full advantage of competitive features. Thus, this work is divided into two articles which answer this main goal. The first paper analyzes the economic feasibility of renewable hybrid systems for hydrogen production and storage in the Brazilian electric power sector. Thus, to evaluate this proposal, the methodology used is based on economic cost analyses of the two largest wind and solar photovoltaic plants in the country. In conclus...