Encontro de Energia no Meio Rural

Abstract

SERAPHIM, Odivaldo José, SIQUEIRA, Jair Antonio Cruz, SILVA, Carliane Diniz e et al. Eficiência energética de módulos fotovoltaicos mono e poli-cristalinos em função da radiação solar global. In Procedings of the 5th Encontro de Energia no Meio Rural, 2004, Campinas (SP) [online]. 2004 [cited 09 October 2024]. Available from: <http://www.proceedings.scielo.br/scielo.php?script=sci_arttext&pid=MSC0000000022004000100049&lng=en&nrm=iso> .

This research proposes a methodology to evaluate the acting of the solar energy conversion in electric energy, generated by photovoltaics modules installed under field conditions, constituted monocrystalline and polycrystalline silicon cells. The modules were appraised with relationship to energy efficiency for different marks and potency levels, in function of the readiness of solar radiation, being used loads sizeds for the nominal potency level of each module. The energy efficiency values calculated with the data obtained in field, didn't agree with the technical information presented by the makers of the modules monocrystalline, as being more efficient than the polycrystalline. Was ended, therefore, that the modules of the appraised marks presented inferior medium efficiency at 50% of the values supplied by the makers.

Keywords : Solar Energy; Photovoltaics Modules; Efficiency.