Abstract
Indonesia has different weather factors than the subtropical climate that influences the performance indicators of photovoltaic systems. One of them is performance ratio that is affected by temperature factors. NREL proposes calculation method of Weather-Corrected Performance Ratio for correcting factors (temperature) in calculation performance ratio of photovoltaic systems. However, the implementation of this method in real operating condition of photovoltaic system especially in the tropics, has not received special attention. In addition, temperature coefficient of power photovoltaic (δ) in Standard Test Condition, is used in the calculation method may be different in real operating condition. This study was conducted to determine the effects of weather-corrected performance ratio method and to know characteristic of temperature coefficient of power photovoltaic (δ) as factors in of weather-corrected performance ratio method, in real operating condition especially in tropics. Through analysis photovoltaic system data from the data logger it is found that the range values of weather-corrected performance ratio are greater than conventional methods, with a maximum increase of 2.43%. Moreover it is found that because average temperature of tropical climate is higher than subtropical climate, it makes the percentage of power decrease to rise in temperature (δ) in tropical climate is higher than subtropical climate.
Highlights
Indonesia is located in the tropics so it has greater solar energy potential than other countries with different climate
The development of photovoltaic systems as power plants in Indonesia is still lacking. Since it is in tropical climate, Indonesia has different climatic and weather conditions from other photovoltaic systems in other climates that may affect the process of evaluating the performance of the photovoltaic system used
From the chart we found that at irradiance 1000 W/m2, the percentage of power decrease to rise in temperature in both systems are higher and significant than other irradiances, with subtropics has higher percentage of power decrease to rise in temperature than tropics
Summary
Indonesia is located in the tropics so it has greater solar energy potential than other countries with different climate. The development of photovoltaic systems as power plants in Indonesia is still lacking. Since it is in tropical climate, Indonesia has different climatic and weather conditions from other photovoltaic systems in other climates that may affect the process of evaluating the performance of the photovoltaic system used. According to IEC 61724 standards, performance ratio is defined as the ratio between the duration of energy consumption by the load when the maximum power of the photovoltaic system with the effective duration of solar radiation in a day (peak sun hour). On an on-grid photovoltaic system, performance ratio is defined as the actual energy ratio generated by the system with known nominal energy (theoretical) of the system power rating
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
