Monitoring of the Solar Power Plants and Performance Ratio

Sredenšek, Klemen; Šlamberger, Jan; Štumberger, Bojan; Hadžiselimovic, Miralem; Seme, Sebastijan
July 2017
AIP Conference Proceedings;2017, Vol. 1866 Issue 1, p1
Conference Proceeding
This paper deals with monitoring of solar power plants. We can observe solar power plants with energy yield, monitoring or performance ratio. All these approaches of monitoring solar power plants have their advantages and disadvantages. The procedures of monitoring different solar power plants in Slovenia will be presented and evaluated in the paper. It turns out that energy yield and monitoring of solar power plants don't give enough necessary information concerning proper operation. Energy yield is the ratio between the energy produced and the nominal power of the solar power plant. Energy yield is dependent on the intensity of solar radiation and temperature. It appears that proper operation of solar power plants is best described with the performance ratio, which is the ration between the energy produced and the energy that would be produced at nominal yield. Performance ratio considers the intensity of solar radiation and/or temperature. The results show that the proper operation of the solar power plants is mostly affected by appropriate installation and orientation of solar modules.


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