Declining trend in solar power capacity in India: IMD study – Careers Ready

Reference

recently India Meteorological Department By 'Season' Journal named In the country from a study published in A trend of steep decline in solar power generation capacity has been detected and to deal with the situation use of more efficient equipment Has been suggested.

Main findings of the study

Title of study published by IMD 'Understanding climatology and long-term trends in solar radiation using surface-based 'in-situ' observations over India' Is.

• The amount of available solar radiation that can be economically utilized by solar panels Can be converted into electricity by, at many places in India Showing a 'worryingly declining trend'.
  • last three decades in india The capacity of solar energy has decreased.
• Due to reduction in solar radiation
  • increase in aerosol load
    • Main drivers of increased aerosol load: carbon emissions emanating from fine particles, fossil fuels burning of and Dust and clouds.
    • aerosol sunlight To absorb and deflect it away from the ground are and Can also form dense clouds Which again block the sunlight.
• efficiency of solar panels falling on them It is greatly affected by the amount of sunlight.

solar energy

• This Alternatives to traditional energy resources Has been recognized as.
• All Among clean technologies, solar energy has the potential to reduce greenhouse gas emissions. And acts as an effective renewable energy resource to reduce global warming.
• it Resources capable of self-sufficient energy production by reducing foreign energy dependence. Is one of.

• • Therefore it There is a need to install more efficient solar panels and meet the energy needs from solar resources. For Need for widespread use of solar panels with better efficiency Thrown light on.
• This study was conducted using 'in-situ' data obtained from IMD between 1985 and 2019. Climate Science and Global Radiation trends, Diffuse Radiation, Bright Sunshine Hours And Technical potential of solar energy (Solar Photovoltaic Capacity – SPV) based on.
• Global radiation trends
  • north-west india And Maximum in inland areas of peninsular India.
  • Minimum in far north and north-east India.
  • The reduction in global radiation is due to: atmospheric Increase in turbulence and clouds.
  • However, in recent decades across the country The declining trend of average global radiation has slowed.
• Diffuse Radiation
• of the country Coastal stations including far northern parts But radiated radiation is high.
• A significant increase in DR has been observed at more than 50 percent of the stations, especially in northwest and parts of peninsular India.
• Reason for reduction in DR: Increase in atmospheric disturbance and clouds.
• across the country The growth rate of average DR has increased in recent decades.
• Bright Sunshine Hours (BHS)
  • Annual BHS is higher in north-west India and lower in north, north-east and southern peninsular India.
  • There is a significant reduction in BHS in 75 percent of the selected stations.
    • majority of The stations show maximum BHS during pre-monsoon and minimum during monsoon season.
• Solar Photovoltaic Potential (SPV): SPV is the amount of radiation that can be practically available for conversion into electricity by the panels.
  • 1800-3400 Wm in the country2 There is huge SPV potential with substantial regional variations in the range of।
  • To calculate the change in solar photovoltaic (SPV) efficiency Data from domestic stations showed a general decline across all stations.
    • India's largest solar park in North-West, Particularly located in Gujarat and Rajasthan, cities in these two states are also witnessing a shortage in SPV capacity.
• Therefore, in the study on Highlighted that it is necessary to understand the diversity of solar energy potential across the country for optimal utilization of solar energy in power generation, For which accurate information about solar radiation and its variations is required.