India records Highest-Ever Annual Solar Capacity Addition: Union Minister | Current Affairs | Vision IAS

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In Summary

  • India added 45 GW of solar energy in 2025-26, reaching 150.26 GW cumulative capacity, ranking 3rd globally.
  • Key drivers include regional suitability, government schemes like PM Surya Ghar and PLI for domestic manufacturing, attracting ₹52,900 crore investment.
  • India is a founding member of the International Solar Alliance and initiated the One Sun, One World, One Grid (OSOWOG) project.

In Summary

India added 45 GW of Solar Energy Capacity in 2025-26, with Rajasthan, Gujarat and Tamil Nadu emerging as top contributing states. 

Solar Energy in India

  • Solar Power (Cumulative) : 150.26 GW as on 31st March, 2026 (Increased by 147.44 GW from 2.82 GW in 2014). 
  • Global Rank: India ranks 3rd (as per IRENA Renewable Energy Statistics 2025).

Reasons for Significant Progress in India’s Solar Energy

  • Regional Suitability: Most parts of India have 300 - 330 sunny days annually with average solar incidence stands at around 4 - 7 kWh/sq. meter/day.
  • Favourable Government Schemes: 
    • PM Surya Ghar: Launched in 2024 to provide rooftop solar systems to one crore households (As of December 2025, 23.9 lakh households have already installed it ). 
    • Others: PM-KUSUM,National Solar Mission, Solar Parks & Ultra-Mega Solar Power Projects, etc. 
  • Boosting Domestic Manufacturing Capacity: Production-Linked Incentive (PLI) Scheme for Solar PV to achieve Giga Watt (GW)-scale manufacturing capacity in high-efficiency solar PV modules attracted ₹52,900 crore investment (as on September 2025). 
  • Global Leadership: India is founding member of International Solar Alliance (headquartered in Gurugram); Initiated One Sun, One World, One Grid (OSOWOG)  in 2018 focussing on interconnecting renewable energy grids. 

Solar Energy

  • About: Energy harnessed directly from sun, for generating electricity, heating or desalinating water.  
  • Generated in two main ways:
    • Solar photovoltaic (PV):  Generate electricity directly from sunlight via an electronic process occurring naturally in semiconductors.
    • Concentrated solar power (CSP): Uses mirrors to concentrate solar rays, mainly used in large-scale power plants. 
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RELATED TERMS

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Concentrated solar power (CSP)

A technology that uses mirrors or lenses to concentrate a large area of sunlight onto a small area, generating heat that can then be used to produce electricity, typically in large-scale power plants.

Solar photovoltaic (PV)

A technology that converts sunlight directly into electricity using semiconductor materials, commonly seen in solar panels used for both residential and large-scale power generation.

One Sun, One World, One Grid (OSOWOG)

An initiative proposed by India, envisioned as a global solar energy grid that connects solar power across different countries and continents. It aims to enable the seamless transfer of solar power, addressing intermittency issues and promoting energy security.

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