The article discusses the global efforts to combat climate change by reducing greenhouse gas emissions and transitioning to cleaner energy sources. It highlights the significance of renewable hydrogen in achieving net-zero carbon emissions by 2050, attracting investments from large industrial companies. While hydrogen production faces cost challenges, it offers potential for reducing GHG emissions across various industrial sectors. The focus is on green hydrogen production, which depends on factors like renewable energy availability, cost-effectiveness, and infrastructure. Several studies assess green hydrogen production potential in different regions, emphasizing the importance of technological advancements and public policy support. Brazil's Northeast region, particularly Ceará, is identified as a promising hub for green hydrogen industries due to its renewable energy resources and government support. However, challenges such as high production costs, infrastructure needs, and logistics hurdles persist. The article proposes a layout for a green hydrogen plant in Ceará powered by photovoltaic energy, using the Systematic Layout Planning method. Addressing the gap in research on plant sizing and planning, the study aims to optimize the design for operational efficiency. Overall, the article conveys a positive sentiment towards green hydrogen's potential in Brazil's energy transition, emphasizing the importance of strategic planning and technological innovation in sustainable energy production.