Hidrogênio verde: dimensionamento de um sistema fotovoltaico para eletrólise de água no Campus do Pici

Abstract

The present study deals with this topic, seeking to design a photovoltaic solar energy generation system for the generation of green hydrogen on the Pici Campus of the Federal University of Ceará. To this end, it was necessary to consult and analyze solar irradiation data at the proposed location, determine the peak power of the photovoltaic system necessary to meet the energy demand of the chosen commercial electrolyzer, determine the photovoltaic module connection arrangement and estimate the amount of green hydrogen generated over a period of one year by the chosen electrolyzer. The methodology adopted is based on estimating the consumption of the Cummin Hy-STAT 10 electrolyzer through the operating time at full load to determine the peak power of the photovoltaic generation system necessary to meet this energy demand considering a performance rate of the photovoltaic system. of 70%. For the photovoltaic arrangement, the DAH Solar DHM-72X10 photovoltaic module with 540Wp power was chosen. Finally, the generation of green hydrogen was estimated based on the technical data provided by the electrolyzer manufacturer and the operating time at full load. In view of this, it was found that 770.57 kWp of peak power are needed to supply the chosen electrolyser, but it is necessary to install 771.11 kWp (1428 photovoltaic modules) due to adaptations to the connection arrangement and that the amount of green hydrogen generated estimated is 21084.50 Nm³ over an interval of one year. It was concluded that the methodology adopted proved to be assertive, since the estimated specific generation showed a deviation of only –3.48% in relation to a renowned solar irradiation data portal and that the proposed objectives were met, making the study relevant to encourage discussions about green hydrogen in Ceará.