ABSTRACT: The demand for green hydrogen (H2) and related technologies is expected to increase in the coming years, driven by climate changes and energy security of supply issues, amid the European and global energy crises. The European Green Deal and REpowerEU Plan have identified H2 as a key pillar for reaching climate neutrality by 2050 and for the intensification of hydrogen delivery targets, bringing the la...
ABSTRACT: Portugal has a vast coastal area and significant offshore wind resources. The country has set ambitious targets and designated specific areas for offshore wind development. Current national policies are actively encouraging investment in these projects. This report compiles the latest strategies for offshore wind and green hydrogen in Portugal. It introduces the Power-to-X (P2X) concept, explores pote...
ABSTRACT: Solar energy is called to meet electricity demands for isolated, off-grid communities in Africa. However, solar electric energy is intermittent and can be stored, for a limited amount of time, in batteries, which are expensive and cause serious environmental impacts at the end of their lifetime. Conversion of the surplus electric energy to green hydrogen through water electrolysis and back to electric...
ABSTRACT: The demand for green hydrogen (H2) and related technologies is expected to increase in the coming years mainly framed by drivers such as climate change and energy security of supply amid the European and global energy crises. REpowerEU Plan called for an intensification of hydrogen delivery targets, that will bring large-scale adoption of hydrogen production and applications in various sectors, stress...
ABSTRACT: Currently, electric energy storage systems for stationary applications have known an increasing interest, namely with the integration of local renewable energy power sources into energy communities. Li-ion batteries are considered the leading electric storage devices to achieve this integration, and Battery Management Systems (BMS) are decisive for their control and optimum performance. In this work, ...
ABSTRACT: Solar energy is called to meet electricity demands for isolated, off-grid communities in Africa. However, solar electric energy is intermittent and can be stored, for a limited amount of time, in batteries, which are expensive and cause serious environmental impacts at the end of their lifetime. Conversion of the surplus electric energy to green hydrogen through water electrolysis and back to electric...
ABSTRACT: In this work, a compact and low-cost electrochemical laboratory prototype for the storage and production of hydrogen, based on metallic hydrides, with high reversibility in the charge/discharge process is demonstrated, using electricity either from the grid or by direct coupling to renewable energies as power source. The reactor is a 316 L stainless steel vessel with a capacity up to 15 bar internal p...
ABSTRACT: The development of systems for production and storage of hydrogen as an energy vector for various applications, has gained much relevance in recent years as it is considered critical in the increase of renewable energies in the energy mix. Presently, most part of the hydrogen production using renewable energy sources is based on electrolysis systems that use water to obtain green hydrogen, that can be...
RESUMO: O armazenamento eletroquímico de energia, através de baterias, constitui uma das tecnologias fundamentais para o armazenamento de energia, tanto nas redes elétricas com elevada penetração de fontes renováveis, como na mobilidade elétrica, com perspetivas de crescimento exponencial, destacando-se ainda a sua contribuição decisiva nos sistemas de armazenamento estacionário em comunidades de energia. Dos v...