image of Dust and snow accumulation over PV panel in aired region of Ladakh

Dust and snow accumulation over PV panel in aired region of Ladakh

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Problem Statement
Solar modules are designed to harness sunlight efficiently and convert it into electrical energy. However, in the region of Ladakh, environmental factors such as dust and snow accumulation can significantly impact their performance. Understanding the effects of these accumulations and how to check for them is essential for maintaining optimal energy production. The Kargil Renewable Energy Development Agency (KREDA), has been facing the persistent issue of dust and snow accumulation on solar photovoltaic (PV) modules throughout the territory. While some studies indicate that such accumulation can lead to a loss of energy generation by as much as 20%, there has yet to be a comprehensive and conclusive investigation into the specific impact of these environmental factors within our region. Regardless of the exact figures, it is evident that losses incurred due to dust and snow are substantial and detrimental to our mission of delivering sustainable energy solutions

Quantifying the Loss 

Currently, comprehensive local studies quantifying the energy losses due to dust and snow accumulation on PV modules in Kargil have not been conducted. However, anecdotal evidence and studies from similar environments suggest a range of 15% to 25% degradation in energy output. This issue presents a significant challenge to the agency's objectives as energy losses hinder our capacity to provide sustainable, efficient energy solutions to our communities.

Statistics

Total installed capacity under Solar: 4.25 MW or 4250 kW
Power loss due to dust accumulation (assumption): 20% of rated power
Daily power loss: 4,250 kWh
Monthly power loss: 1,27,500 kWh
Annual power lost: 15,30,000 kWh
Tariff loss per year: ₹88,74,000 @ ₹ 5.80/unit

  • Published on:16 Jan 2025
  • Published By TEC UoL