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<p>This study investigated the performance optimization of photovoltaic&#xa0;system (PV) systems installed on an ellipsoidal rooftop at the <i>Politeknik Balikpapan</i> Building, addressing the unique challenges posed by curved surfaces, such as uneven irradiance distribution and shading effects. This research aims to evaluate and compare the performance of monocrystalline and polycrystalline PV modules using Helioscope software, with a focus on two key metrics: Performance Ratio (PR) and Energy Density Ratio (EDR). Simulations were conducted by segmenting the rooftop into distinct areas based on azimuth angles, allowing a detailed analysis of the shading impact. The results showed that monocrystalline PV modules achieved a PR of 71.5%, outperforming polycrystalline modules, which recorded a PR of 61.6%. However, polycrystalline PV exhibited greater stability in terms of energy density, with an EDR reduction of only 7.8% compared with 6.9% for monocrystalline PV. The average energy production was 35,246 kWh for the monocrystalline PV and 29,922 kWh for the polycrystalline PV. These findings highlight that, while monocrystalline PV offer higher efficiency, polycrystalline PV provide better performance consistency under variable environmental conditions. This study provides valuable insights for optimizing PV system design on complex architectural surfaces, thereby contributing to the advancement of renewable energy technologies. </p>

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Performance evaluation and optimization of PV systems on ellipsoidal rooftops using helioscope: a case study in Balikpapan

  • 期刊论文

  • 发表日期：

    2026年1月8日

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  • Nurul Hiron,
  • Nundang Busaeri,
  • Nur Yanti,
  • Mohamad Afendee Mohamed,
  • Aceng Sambas,
  • Volodymyr Rusyn

摘要

This study investigated the performance optimization of photovoltaic system (PV) systems installed on an ellipsoidal rooftop at the Politeknik Balikpapan Building, addressing the unique challenges posed by curved surfaces, such as uneven irradiance distribution and shading effects. This research aims to evaluate and compare the performance of monocrystalline and polycrystalline PV modules using Helioscope software, with a focus on two key metrics: Performance Ratio (PR) and Energy Density Ratio (EDR). Simulations were conducted by segmenting the rooftop into distinct areas based on azimuth angles, allowing a detailed analysis of the shading impact. The results showed that monocrystalline PV modules achieved a PR of 71.5%, outperforming polycrystalline modules, which recorded a PR of 61.6%. However, polycrystalline PV exhibited greater stability in terms of energy density, with an EDR reduction of only 7.8% compared with 6.9% for monocrystalline PV. The average energy production was 35,246 kWh for the monocrystalline PV and 29,922 kWh for the polycrystalline PV. These findings highlight that, while monocrystalline PV offer higher efficiency, polycrystalline PV provide better performance consistency under variable environmental conditions. This study provides valuable insights for optimizing PV system design on complex architectural surfaces, thereby contributing to the advancement of renewable energy technologies.