Analise comparativa de sistemas de armazenamento de energia eletrica fotovoltaica por meio de baterias e hidrogenio em localidades isoladas da região Amazonica / Comparative analysis of photovoltaic power storage systems by means of batteries and hydrogen in remote areas of the Amazon region of Brazil

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

In this work, comparative analyses of photovoltaic power storage were made, first by the traditional means employing lead-acid batteries, and second by means of electrolytic hydrogen which was later reconverted to power in a fuel cell. In order to design the two systems, it was used a load profile of the communities in Amazon region and by means of a mathematical model, implemented in a spreadsheet, that considers the several devices and their efficiencies in order to make it possible to specify the system components. This was followed by an economical analysis of the two systems for use in remote communities. Considering the present conditions, it was verified that the battery system is 20% more advantageous. However, it was also observed that a reduction of about 35% in the cost of the electrolyzers/buffer/fuel cell, technologies still in processes of development, would make the hydrogen system very competitive, becoming the best option for photovoltaic power storage, especially due to the environmental risks associated with the use of large battery banks in remote regions.

ASSUNTO(S)

hydrogen as fuel cells celulas a combustivel hidrogenio como combustivel photovoltaic panel geração de energia fotovoltaica baterias batteries

ACESSO AO ARTIGO

Documentos Relacionados