Solar Energy in India: Significance and Challenges

• India’s record solar capacity addition of around 45 GW in 2025–26 reflects its rapid transition towards clean energy, strengthening sustainability, energy security, and climate action.

Significance of Solar Energy in India

• Climate Commitment: Solar expansion supports India’s target of 500 GW non-fossil capacity by 2030 and net-zero emissions by 2070.
• Rural Electrification: PM-KUSUM scheme promotes solar pumps; over 10 lakh solar pumps installed/targeted, reducing diesel use in agriculture.
• Rooftop Expansion: PM Surya Ghar scheme (2024) aims at 1 crore households; ~23.9 lakh homes installed rooftop solar by Dec 2025.
• Global Leadership: India ranks 3^rd globally in solar capacity (IRENA 2025) and leads the International Solar Alliance for global clean energy cooperation.

Key Drivers of Solar Energy Growth in India

• High Solar Insolation: India enjoys 300–330 sunny days annually with strong solar radiation (4–7 kWh/m²/day), ensuring high generation potential.
• Policy Push: Government initiatives like PM Surya Ghar (23.9 lakh rooftop installations by Dec 2025), PM-KUSUM, and National Solar Mission drive expansion.
• Manufacturing Incentives: PLI scheme attracted ₹52,900 crore investment (Sept 2025), boosting domestic solar PV manufacturing capacity at scale.
• International Cooperation: India promotes global clean energy through the International Solar Alliance and OSOWOG for integrated renewable energy networks.

Key Issues in Solar Development in India

• Land Bottlenecks: Delays in land procurement and fragmented approvals slow project execution. E.g., solar parks face multi-agency clearance delays across states.
• Transmission Constraints: Grid evacuation remains a major barrier as India must expand transmission capacity to match the target of 292 GW solar by 2030.
• Right of Way (RoW) Disputes: Inconsistent compensation (despite guidelines like 200% for towers and 30% for corridors) leads to frequent project delays in solar-rich states.
• Rooftop Lag: Schemes like PM Surya Ghar face lower-than-expected penetration due to financing and DISCOM-related issues.
• Import Dependence: India still relies heavily on imported solar components like polysilicon, wafers, and cells, creating supply chain vulnerability.
• Storage Deficit: Limited domestic R&D and high cost of battery storage hinder large-scale integration of intermittent solar power.

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Technological Roadblocks in Solar Transition

• Intermittency Issue: Solar power is variable and weather-dependent, leading to supply instability. E.g., Output drops during monsoon and cloudy days in Rajasthan and Delhi.
• Storage Limits: High costs and limited domestic battery capacity restrict the use of 24×7 solar power. E.g., India relies on imported lithium-ion batteries for storage projects.
• Low Efficiency: Domestic solar panels often have lower efficiency than global standards. E.g., Imported Chinese panels generate more power per unit area.
• Grid Constraints: Existing transmission systems struggle to handle fluctuating solar energy input. E.g., solar curtailment in Tamil Nadu due to grid congestion.
• Import Dependence: India relies on foreign suppliers for key solar components, such as wafers and polysilicon. E.g., The majority of solar cells are imported from China.

Way Forward

• Grid Expansion: Strengthen transmission networks (Green Energy Corridors) to evacuate solar power. E.g., ~60 GW renewable projects in Rajasthan face connectivity delays.
• Energy Storage: Scale battery and pumped hydro storage to manage intermittency. E.g., Andhra Pradesh’s 3,000 MWh BESS project for peak demand support.
• Policy Reform: Introduce single-window clearances for faster land, RoW, and forest approvals. E.g., delays hinder India’s 292 GW solar target by 2030.
• Manufacturing Push: Boost domestic solar ecosystem via PLI and R&D. India’s module capacity exceeds 200 GW but depends on imported wafers and polysilicon.

India’s solar energy growth reflects strong progress, but addressing structural gaps is essential for achieving a sustainable, inclusive, and secure transition; as the vision goes, “clean energy is the foundation of future prosperity.”

Reference: PIB

PMF IAS Pathfinder for Mains – Question 633

Q. “India’s solar energy growth, though significant, is constrained by regional imbalance and grid integration challenges.” Critically examine the structural and technological bottlenecks, and evaluate the effectiveness of government initiatives in addressing them. (250 Words) (15 Marks)

Approach

• Introduction: Write a contextual introduction about solar energy in India.
• Body: Write structural and technological bottlenecks of solar energy in India, evaluate the effectiveness of government initiatives in addressing them and the way forward.
• Conclusion: Emphasis on structural and technological reforms to India’s 292 GW solar target by 2030.