The Workshop on Renewable Energy and Sustainability - WREN2024 is an international event that reaches its twelfth edition with presentations of new technologies and research aimed at the dissemination and dissemination of clean energy sources aimed at a wide audience. WREN is an international event dedicated to advancing clean energy sources and innovative technologies. In its 12a edition, WREN focuses on specific topics, including wind turbines, hydrogen production, photoelectrochemistry, photovoltaics, solar cells and other renewable energy technologies, emphasizing their importance and potential impact. This proposal addresses the urgent need to explore sustainable energy sources in the face of global environmental and energy challenges