Abstract
The output of the photovoltaic cells such as voltage and current is an essential parameter to assess the performance of photovoltaic cells. The performance of photovoltaic cells depends on the intensity of solar irradiation and the cleanliness conditions of cells. One of the factors that influence the performance of photovoltaic cells is shading. It can reduce the intensity of solar irradiation on the cells. In this study, the measurement system used two units of current and voltage sensors that simultaneously measures the performance of photovoltaic cells. In photovoltaic cells covered by a shading net with nominal shading rates of 50% and 90%, the average efficiency is 6% and 2% respectively. Meanwhile, for photovoltaic cells without covering by a shading net, the average efficiency is 11%.
Highlights
The output of the photovoltaic cells such as voltage and current is an essential parameter to assess the performance of photovoltaic cells
Some factor influences the efficiency of photovoltaic such as the type of PV material, solar radiat ion intensity received, cell temperature, parasit ic resistances, cloud and other shading effects, inverter efficiency, dust, module orientation, weather conditions, geographical location and cable thickness [3]
Several studies related to photovoltaic cells monitoring [21] – [23] have imp lemented to support the purpose of research, which is to observe the performance o f photovoltaic under the influence of the shading nets
Summary
The utilizat ion of renewable energy in national energy policy in Indonesia is one of the prio rit ies to meet national energy needs. As a source of energy directly through the rooftop photovoltaic, the government proposes some supports such as creating a billing system to accommodate export-import offsets and providing credit deposits fro m photovoltaic consumers [2]. The intensity of irradiat ion is directly proportional to the current generated by photovoltaic cells [24]. The solar array simulator is co mmonly using to measure the characteristics of the dependence of the performance of the photovoltaic module on the intensity of the irradiation. A measurement method is proposed to determine the dependence of the performance of the photovoltaic module on the irradiation intensity using shading nets. The uses of shading nets are expected to reduce measurement costs and can be an alternative in learning activ ities related to photovoltaic mo d u les
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