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Open cast mining operations require continuous pumping to manage groundwater inflow, making reliable power supply essential for both dewatering and operational safety. This study proposes a Hybrid Bifacial Solar PV Grid-Interconnected Pumping System designed to reduce carbon emissions and ensure uninterrupted power. Data from various pumps installed in an open cast mine totaling a load of approximately 5.81 MW was analyzed. Assuming 24/7 operation, the total energy demand is estimated at 139,454 kWh/day. A bifacial solar PV plant rated at 20.6 MWp is proposed to meet 65% of this demand, leveraging 6.5 effective solar hours/day, 12% bifacial gain, and 80% system efficiency. The remaining 35% is supplied by the grid to ensure night-time and low-irradiance reliability. An energy management system (EMS) and battery storage of 2–4 MWh are also recommended. Performance was simulated using both SAM and PVsyst tools, with annual energy outputs and performance ratios compared to ensure accurate modeling. This hybrid model offers an economically and environmentally sustainable solution, significantly reducing carbon emissions in the mining sector.

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Hybrid Bifacial Solar Pv Grid-Interconnected Pumping System for Continuous Power Supply in Open Cast Mines

  • 会议论文

  • 发表日期：

    2026年

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  • Bojja Shiva Kumar,
  • Sahas V. Swamy,
  • N. Channabassamma,
  • B. M. Kunar,
  • Ch S. N. Murthy

摘要

Open cast mining operations require continuous pumping to manage groundwater inflow, making reliable power supply essential for both dewatering and operational safety. This study proposes a Hybrid Bifacial Solar PV Grid-Interconnected Pumping System designed to reduce carbon emissions and ensure uninterrupted power. Data from various pumps installed in an open cast mine totaling a load of approximately 5.81 MW was analyzed. Assuming 24/7 operation, the total energy demand is estimated at 139,454 kWh/day. A bifacial solar PV plant rated at 20.6 MWp is proposed to meet 65% of this demand, leveraging 6.5 effective solar hours/day, 12% bifacial gain, and 80% system efficiency. The remaining 35% is supplied by the grid to ensure night-time and low-irradiance reliability. An energy management system (EMS) and battery storage of 2–4 MWh are also recommended. Performance was simulated using both SAM and PVsyst tools, with annual energy outputs and performance ratios compared to ensure accurate modeling. This hybrid model offers an economically and environmentally sustainable solution, significantly reducing carbon emissions in the mining sector.