Electrical energy of photovoltaic modules drops by 0.5% for each degree increase in temperature. Direct water cooling of photovoltaic modules was found to give improved electrical and thermal yield. A prototype was put in place to analyse the field data for a period of a year. The results showed an initial high performance ratio and electrical power output. The monthly energy saving efficiency of the directly water cooled module was found to be approximately 61%. The solar utilisation of the naturally cooled photovoltaic module was found to be 8.79% and for the directly water cooled module its solar utilisation was 47.93%. Implementation of such systems on households may reduce the load from the utility company, bring about huge savings on electricity bills and help in reducing carbon emissions.
CITATION STYLE
Mtunzi, B., Meyer, E. L., & Michael, S. (2015). Thermal and electrical energy yield analysis of a directly water cooled photovoltaic module. Thermal Science, 19, S547–S555. https://doi.org/10.2298/TSCI130118144M
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