UPSC Previous Year Question | Mains GS1 | 2020

India has immense potential of solar energy though there are regional variations in its developments. Elaborate. (250 words, 15 marks)

Answer

Introduction

India lies largely in the tropical sun belt and receives abundant solar radiation for much of the year. Its potential is high, but development varies with insolation, land, infrastructure, finance and policy.

Resource Potential And Variation

  • Western Rajasthan and Gujarat have high irradiation, extensive dry land and large solar parks; Khavda and the Bhadla region exemplify utility-scale development.
  • Central and peninsular India, including Madhya Pradesh, Maharashtra, Karnataka, Telangana and Andhra Pradesh, combine good sunshine with expanding transmission networks.
  • Southern states have strong rooftop, industrial and decentralised potential, though monsoon cloud cover and land competition vary locally.
  • Himalayan and northeastern areas receive lower or seasonally variable radiation, but dispersed solar can serve remote settlements and institutions.
  • Urban regions have substantial rooftop potential but face shading, high land prices, fragmented ownership and distribution-company constraints.

Development Constraints

  • Intermittency requires storage, flexible grids, forecasting and complementary hydro or thermal capacity.
  • Transmission evacuation from desert solar parks can lag generation capacity.
  • Land acquisition, biodiversity concerns, dust, water use for cleaning and extreme heat affect project economics.
  • DISCOM finances, delayed payments, customs dependence and rooftop regulation influence investment.

Way Forward

India should combine utility-scale parks with rooftop solar, agrivoltaics, floating solar, solar pumps and decentralised mini-grids. Domestic manufacturing, recycling, battery storage, green corridors, net metering and transparent land-use planning can ensure equitable expansion. Regional variation therefore calls for a diversified, grid-connected and locally appropriate strategy rather than a uniform model.

Keywords

solar radiation, Bhadla, Khavda, rooftop solar, agrivoltaics, storage, green corridors, DISCOMs.

Topics: indian geography, regional development, renewable energy, solar power