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Science and Technology › Energy technology

Solar energy

Solar energy: installed capacity and the schemes that grow it on rooftops, farms and water, the manufacturing chain from polysilicon to module, cell technologies, and the International Solar Alliance. Prelims has asked about the largest floating solar project in India and about solar water pumps.

UPSC has asked

  • Prelims 2025: PM Surya Ghar Muft Bijli Yojana and rooftop solar
  • Prelims 2018: solar power tariffs and the Solar Energy Corporation of India

Showing 1 of 5 subjects, those that changed from 16 to 31 August 2026.Show all

Polysilicon subsidy scheme

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Prelims and Mains

Panels themselves start further up the chain, with polysilicon, the first link in the solar value chain. The Centre began work on a subsidy scheme to build capacity for it in India.

  • It aims to add 30 GW of polysilicon capacity by 2030.

What changed

  1. 22 Aug 2026

    The Hindu, 22 Aug 2026: Centre plans support for polysilicon manufacturing (opens in a new tab)