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Subject: Renewable Energy Sector

  • [20th June 2026] The Hindu OpED: India’s cheapest power is here, the grid must catch up

    PYQ Relevance[UPSC 2013] Write a note on India’s green energy corridor to alleviate the problem of conventional energy.
    Linkage: The question examines the role of transmission infrastructure in enabling large-scale renewable energy integration.The article shows that transmission bottlenecks, not generation capacity, have become the main constraint on India’s clean-energy transition, reinforcing the importance of the Green Energy Corridor.

    Mentor’s Comment

    India now produces some of the world’s cheapest solar and wind power, yet more than 50 GW of completed renewable capacity remains stranded not because projects are unfinished, but because grid connectivity and transmission is unavailable.

    Why Has Transmission Become the Binding Constraint in India’s Energy Transition?

    1. Cheapest Source of Power: Solar and wind have emerged as India’s lowest-cost electricity sources, with firm clean power available at around ₹3.5 per kWh when paired with storage.
    2. Rapid Renewable Expansion: India added over 45 GW of renewable capacity in 2025 and currently has about 250 GW installed, with another 100 GW under construction.
    3. Existing Base and Pipeline: India currently has about 250 GW of renewable capacity installed and another 100 GW under construction, indicating that transmission expansion is lagging generation growth.
    4. Stranded Renewable Capacity: More than 50 GW of completed renewable projects remain unable to evacuate power due to transmission shortages.
    5. Mismatch in Project Timelines: Renewable projects can be commissioned within 12-18 months, whereas transmission corridors often require 3-5 years.
    6. Future Scale Requirement: India may require nearly 2,000 GW of renewable capacity by 2050 to meet rising electricity demand and electrification goals.

    How Can Existing Grid Assets Unlock Nearly 1,000 GW of Additional Clean Energy?

    1. Storage at Renewable Sites: Batteries can store surplus daytime generation and supply power during evening peaks, significantly increasing utilisation of existing transmission lines.
    2. Reuse of Coal Corridors: Underutilised transmission infrastructure connected to coal plants can be shared with renewable projects, unlocking the equivalent of nearly 100 GW of clean-energy capacity.
    3. Leveraging Existing Substations: Available capacity at transmission substations can accommodate additional renewable connections and support battery integration, enabling another 100 GW equivalent.
    4. Reconductoring Existing Lines: Replacing older conductors with high-temperature, low-sag conductors can nearly double power-carrying capacity on the same towers.
    5. Combined Impact: Storage, shared infrastructure, and reconductoring together can unlock more than 1,000 GW of clean-energy potential within the existing transmission footprint.

    Does Better Grid Utilisation Solve the Problem or Merely Defer It?

    1. Fastest Short-Term Solution: Grid optimisation can be deployed within months and quickly connect stranded renewable projects.
    2. Not a Substitute for Expansion: Existing infrastructure alone cannot support India’s projected renewable requirement of 2,000 GW.
    3. Scale Limitation: Future renewable parks and industrial electrification will require entirely new transmission corridors.
    4. Sequencing Advantage: Optimisation provides immediate relief while larger transmission projects are planned and executed.
    5. Grid Expansion Imperative: India plans a 40% expansion of its transmission network over the next decade, costing more than $100 billion. New corridors must incorporate advanced conductors and storage compatibility to avoid recreating future bottlenecks.
    6. Core Tension: The cheapest and fastest solution is grid optimisation, but the durable solution remains large-scale transmission expansion. Both approaches are necessary.

    What Regulatory and Policy Changes Are Needed?

    1. Storage-Linked Renewable Planning: Regulators should promote greater integration of storage with renewable projects to improve grid utilisation.
    2. State-Level Implementation: States and distribution utilities must incorporate storage and grid-efficiency measures into procurement and planning decisions.
    3. Technology-Oriented Procurement: Procurement norms should reward advanced transmission technologies that expand capacity without requiring new corridors.
    4. Integrated Infrastructure Planning: Renewable energy zones and transmission corridors should be developed in a coordinated manner.
    5. Future-Proof Transmission Design: New transmission infrastructure should be designed for significantly higher renewable penetration from the outset.

    What Does International Experience Reveal About Transmission Bottlenecks?

    1. United States: Delays in connecting renewable projects to the grid have emerged as a major obstacle to the clean-energy transition.
    2. Europe: Several European countries face similar transmission constraints despite substantial renewable deployment.
    3. Common Lesson: Cheap renewable generation alone does not guarantee energy transition success unless transmission capacity keeps pace.
    4. India’s Advantage: A unified national grid and a strong record of transmission expansion provide India with an opportunity to avoid similar bottlenecks.

    Conclusion

    India’s energy transition has moved from a generation challenge to a transmission challenge. The fastest gains lie in optimising existing grid infrastructure through storage, shared transmission assets, and reconductoring, which together can unlock nearly 1,000 GW of additional clean-energy potential. However, optimisation only buys time; achieving India’s long-term renewable ambitions requires simultaneous investment in new, high-capacity transmission corridors. India’s success will depend on pursuing both tracks together.

  • Green Hydrogen Certification Portal of India (GHCI) & National Green Hydrogen Mission (NGHM)

    Why in the news?

    The Ministry of New and Renewable Energy (MNRE) launched the Green Hydrogen Certification Portal of India (GHCI) to ensure transparent certification and regulatory compliance for green hydrogen production.

    GHCI

    • Developed by MNRE (Ministry of New and Renewable Energy).
    • Certifies green hydrogen under the Green Hydrogen Certification Scheme of India (GHCI Scheme).
    • Enhances transparency, traceability, and market credibility.

    National Green Hydrogen Mission (NGHM)

    • Launched in 2023.
    • Outlay: ₹19,744 crore.

    Targets by 2030

    • 5 Million Metric Tonnes (MMT) of green hydrogen production.
    • 125 Gigawatt (GW) dedicated renewable energy capacity.
    • ₹8 lakh crore investment.
    • 6 lakh jobs.
    • Reduction of 50 million tonnes of carbon dioxide (CO₂) emissions annually.

    Key Progress

    • 6 States have dedicated Green Hydrogen Policies; 7 States have integrated hydrogen into existing policies.
    • Incentives awarded to 15 companies for 3,000 MW (Megawatt) per year electrolyser manufacturing capacity.
    • Under SIGHT (Strategic Interventions for Green Hydrogen Transition), incentives approved for 8.62 lakh Metric Tonnes Per Annum (MTPA) of green hydrogen production.
    • Contracts awarded for 30,000 MTPA green hydrogen supply to refineries.
    • Agreements signed for 6.7 lakh MTPA of Green Ammonia supply to 11 fertilizer plants.
    • ₹84 crore sanctioned for hydrogen injection pilot projects in the steel sector.
    • ₹208 crore allocated for 37 hydrogen-powered vehicles and 9 refuelling stations.
    • ₹113 crore allocated for Research and Development (R&D) projects.
    • ₹100 crore startup fund; first 9 startups approved with ₹22 crore support.

    Green Hydrogen

    • Hydrogen produced through electrolysis using renewable energy.
    • A zero-carbon fuel for sectors such as steel, fertilizers, refineries, shipping, and heavy transport.

    [2023] With reference to green hydrogen, consider the following statements:
    1. It can be used directly as a fuel for internal combustion.
    2. It can be blended with natural gas and used as fuel for heat or power generation.
    3. It can be used in the hydrogen fuel cell to run vehicles.
    How many of the above statements are correct?

    [A] Only one

    [B] Only two

    [C] All three

    [D] None

  • Global Wind Day 2026

    Why in the news?

    India will host the Global Wind Day 2026 Conference on 15 June 2026 in Goa under the theme “Wind Energy: From Ambition to Acceleration.”

    About Global Wind Day

    • Celebrated annually on 15 June.
    • Promotes awareness about wind energy and its role in addressing climate change.

    India’s Wind Energy Status

    • India ranks 4th globally in installed wind power capacity.
    • Installed capacity increased from 21.04 GW (2014) to 56.09 GW (March 2026).
    • An additional 28 GW is under implementation.
    • Record addition of 6.05 GW was achieved in 2025-26.

    Wind Resource Potential

    • Estimated potential:
      • 695.5 GW at 120 m hub height.
      • 1,163.9 GW at 150 m hub height.
    • Rajasthan has the highest assessed potential.
    • Over 900 wind-monitoring stations have been installed across India.

    Manufacturing Highlights

    • Wind turbine manufacturing capacity increased to 24 GW.
    • The sector has achieved 70-80% indigenisation.
    • Strong domestic supply chains exist for blades, towers, and gearboxes.

    Key Government Initiatives

    • ₹6,853 crore VGF approved for 1,000 MW offshore wind projects off Gujarat and Tamil Nadu.
    • ₹500 crore disbursed under the Generation Based Incentive (GBI) Scheme in 2025-26.
    • 500 MW Contracts for Difference (CfD) pilot project launched.
    • Dedicated Wind Renewable Purchase Obligation (RPO) introduced.
    • Green Energy Open Access Rules notified.
    • Promotion of Hybrid and Round-the-Clock (RTC) renewable projects.

    International Cooperation

    • India-UK Offshore Wind Taskforce launched in 2026.
    • Cooperation with Belgium focuses on offshore wind and R&D.
    • Offshore wind partnership with Denmark, initiated in 2019, was renewed in 2025.

    [2025] Consider the following statements about ‘PM Surya Ghar Muft Bijli Yojana’:
    I. It targets installation of one crore solar rooftop panels in the residential sector.
    II. The Ministry of New and Renewable Energy aims to impart training on installation, operation, maintenance and repairs of solar rooftop systems at grassroot levels.
    III. It aims to create more than three lakhs skilled manpower through fresh skilling, and upskilling, under scheme component of capacity building.
    Which of the statements given above are correct?

    [A] I and II only

    [B] I and III only

    [C] II and III only

    [D] I, II and III

  • The boost centre’s solar power schemes need

    Why in the News?

    India’s flagship decentralised solar schemes, PM Surya Ghar Yojana and PM-KUSUM, have achieved only about 13 GW capacity against a target of 40 GW. This has prompted the Parliamentary Estimates Committee to examine implementation bottlenecks.

    Background

    1. Solar Dominance: Solar power now accounts for nearly 30% of India’s installed electricity generation capacity.
    2. Rapid Capacity Addition: India added more than 50 GW of solar capacity during the last two years.
    3. Global Position: India added more solar power in 2025 than any country except China.

    Why is Decentralised Solar Power Becoming Central to India’s Energy Transition?

    Decentralised solar power (DRE) generates electricity at or near the point of consumption rather than relying on large, centralized power plants. This approach eliminates long-distance transmission losses and empowers local communities by providing affordable, continuous, and reliable energy

    1. Rising Electricity Demand: Increasing temperatures, urbanisation and economic growth are pushing electricity demand upwards.
    2. Land Constraints: Availability of land for large utility-scale solar parks is becoming increasingly limited.
    3. Climate Resilience: Distributed generation strengthens energy security during periods of high demand and climatic stress.
    4. Peak Demand Management: Solar power significantly contributed to meeting daytime peak demand during April-May 2026.
    5. Hydropower Constraints: Hydropower capacity expansion has stagnated, reducing its ability to meet incremental demand.
      1. Stagnating Share: Hydropower’s share in India’s installed power capacity has declined from around 25% in the early 1990s to about 10% today, despite growth in overall electricity demand.
      2. Limited Capacity Addition: India added only about 5 GW of large hydropower capacity between 2014 and 2024, compared to over 100 GW of solar capacity during the same period.
      3. Current Capacity: India’s installed hydropower capacity stands at roughly 48-49 GW, while solar capacity has crossed 100 GW.
      4. Climate Vulnerability: Erratic monsoons, changing river flows, environmental clearances, rehabilitation issues, and long gestation periods have slowed hydropower expansion.
      5. Energy Transition Implication: With hydropower unable to expand rapidly enough to meet rising demand, solar, particularly decentralised solar, is increasingly expected to meet incremental electricity requirements.

    What are the Key Features of PM Surya Ghar Yojana and PM-KUSUM?

    PM Surya Ghar Yojana

    1. Household Coverage: Targets rooftop solar installation in 1 crore households.
    2. Free Electricity: Provides electricity benefits of up to 300 units per month.
    3. Capital Subsidy: Offers direct subsidy support for rooftop solar equipment.
    4. Decentralised Generation: Encourages household-level electricity production and grid integration.

    Progress

    TargetAchievement
    1 crore households connected40.52 lakh households
    30 GW installed capacity12 GW

    PM-KUSUM

    The Pradhan Mantri Kisan Urja Suraksha evam Utthan Mahabhiyan (PM-KUSUM) is an initiative by the Ministry of New and Renewable Energy (MNRE). It provides farmers with heavy subsidies for solar agricultural pumps and solar power plants, designed to generate income, provide daytime irrigation, and replace expensive diesel or grid power

    1. Farmer-Centric Design: Supports farmers in establishing decentralised solar infrastructure.
    2. Solar Plants on Unused Land: Enables installation of small solar plants on unused agricultural land.
    3. Solar Water Pumps: Supports both standalone and grid-connected solar irrigation pumps.
    4. Additional Income: Allows sale of surplus electricity to the grid.
    5. Cost Reduction: Reduces diesel and conventional electricity expenses.

    Progress

    TargetAchievement
    14 lakh solar water pumps10.9 lakh
    2.5 lakh solar irrigation pumps15,000
    30 GW decentralised solar capacity1.2 GW

    How Successful Have These Flagship Programmes Been?

    1. Combined Budget: Approximately ₹95,000 crore.
    2. Combined Capacity Created: About 13 GW as of 31 May 2026.
    3. Target Capacity: 40 GW by the end of the current financial year.
    4. Achievement Gap: Only around one-third of the targeted capacity achieved.
    5. PM-KUSUM Delay: Initially targeted for completion by 2022 but extended until the end of the current financial year due to pandemic-related disruptions.
    6. Best Performing Component: Standalone off-grid solar water pumps under PM-KUSUM.

    How is Performance Highly Uneven Across States?

    PM Surya Ghar Better Performers

    StateInstallationsHouseholds ConnectedSubsidy (₹ crore)
    Gujarat6,81,1809,77,7549,277
    Maharashtra6,04,5229,42,37823,149
    Uttar Pradesh5,62,6565,77,10319,095
    Kerala2,52,8032,58,959382
    Rajasthan2,15,8422,23,06630,597

    PM Surya Ghar Underperformers

    StateInstallationsHouseholds ConnectedSubsidy (₹ crore)
    West Bengal1,6951,7581,868
    Punjab14,47016,64120,693
    Karnataka19,79330,39527,725
    Bihar20,27220,90515,405
    Tamil Nadu72,98885,74315,701

    How Do Power Subsidies Affect Solar Adoption?

    1. Distorted Economic Incentives: Free or highly subsidised electricity reduces the financial attractiveness of investing in rooftop solar systems.
    2. Reduced Payback Benefits: Consumers receiving subsidised electricity perceive limited savings from solar installations, resulting in lower adoption rates.
    3. High Upfront Cost Sensitivity: Households are less willing to incur substantial initial costs for solar systems when electricity is already available at little or no cost.
    4. Subsidy-Driven Consumer Behaviour: Existing subsidy regimes encourage continued dependence on grid electricity rather than self-generation through rooftop solar.
    5. Policy Contradiction: Simultaneous promotion of rooftop solar and provision of free electricity creates conflicting incentives for consumers.
    6. Official Recognition: The Ministry of New and Renewable Energy informed the Parliamentary Estimates Committee that free electricity schemes have emerged as a major constraint to PM Surya Ghar implementation.

    Evidence from States

    1. Punjab: Provides 300 free units to households and free electricity for agricultural tubewells; annual power subsidy expenditure exceeds ₹20,000 crore.
    2. Karnataka: Electricity subsidy bill stands at approximately ₹27,000 crore.
    3. Tamil Nadu: Electricity subsidy expenditure is around ₹15,700 crore.

    Why Does the Upfront Cost Remain the Biggest Barrier?

    1. High Initial Investment: Solar installations often require investment of several lakh rupees.
    2. Delayed Returns: Benefits accrue gradually through reduced electricity bills and sale of surplus power.
    3. Affordability Challenge: Many households and farmers struggle to mobilise upfront capital despite long-term savings.
    4. Credit Constraints: Access to affordable financing remains limited.
    5. Committee Recommendation: Parliamentary Estimates Committee recommended mechanisms that reduce upfront payment burdens.

    Why Have Some States Succeeded Despite Offering Subsidised Power?

    1. Additional Incentives: Gujarat, Rajasthan and Uttar Pradesh supplemented central support with state-level incentives.
    2. Policy Convergence: State support reduced effective installation costs.
    3. Consumer Confidence: Additional incentives improved economic viability.
    4. Administrative Efficiency: Faster approvals and implementation improved adoption rates.
    5. Evidence of Success: These states account for nearly 70% of the total rooftop solar installations achieved under PM Surya Ghar.

    What are the Long-Term Economic Benefits of Decentralised Solar Power?

    1. Subsidy Rationalisation: Reduces long-term dependence on recurring electricity subsidies.
    2. Fiscal Savings: Full implementation of PM Surya Ghar could save approximately ₹75,000 crore annually in electricity-related expenditure.
    3. Consumer Empowerment: Converts consumers into electricity producers.
    4. Grid Stability: Reduces transmission losses and distribution burden.
    5. Energy Security: Diversifies generation sources and reduces fuel dependence.
    6. Climate Commitments: Supports India’s renewable energy and net-zero objectives.

    What is the Growing Link Between Solar Power and Electricity Demand?

    1. Demand Surge: Rising temperatures are increasing electricity consumption.
    2. Climate Variability: Lower rainfall forecasts may reduce hydropower availability.
    3. Summer Demand Peaks: Solar generation is increasingly meeting daytime peak loads.
    4. Future Energy Mix: Solar is expected to become India’s second-largest source of electricity generation, overtaking hydropower.
    5. Decentralisation Advantage: Distributed generation can cushion local supply-demand imbalances.

    Conclusion

    India’s clean energy transition increasingly depends on decentralised solar generation alongside utility-scale renewable projects. While PM Surya Ghar and PM-KUSUM have demonstrated their transformative potential, persistent barriers such as high upfront costs and distortionary electricity subsidies continue to constrain adoption. Bridging this gap through targeted incentives, affordable financing and subsidy reforms will determine whether decentralised solar power can become a major pillar of India’s energy security and climate strategy.

    PYQ Relevance

    [UPSC 2020] Describe the benefits of deriving electric energy from sunlight in contrast to the conventional energy generation. What are the initiatives offered by our Government for this purpose?

    Linkage: The PYQ focuses on solar energy as a sustainable alternative to conventional power sources and government efforts to promote its adoption. PM Surya Ghar and PM-KUSUM are among India’s flagship initiatives for promoting decentralised solar energy. The article evaluates their achievements, implementation challenges, and significance for India’s energy security and clean energy transition.

  • With reference to the Indian Renewable Energy Development Agency Limited (IREDA), which of

    With reference to the Indian Renewable Energy Development Agency Limited (IREDA), which of
    the following statements is/are correct?
    (1) It is a Public Limited Government Company.
    (2) It is a Non-Banking Financial Company.
    Select the correct answer using the code given below.

  • With reference to solar power production in India, consider the following statements

    With reference to solar power production in India, consider the following statements:
    1. India is the third largest in the world in the manufacture of silicon wafers used in photovoltaic units.
    2. The solar power tariffs are determined by the Solar Energy Corporation of India.
    Which of the statements given above is/are correct ?

  • Consider the following statements about ‘PM Surya Ghar Muft Bijli Yojana’

    Consider the following statements about ‘PM Surya Ghar Muft Bijli Yojana’:

    I. It targets installation of one crore solar rooftop panels in the residential sector.
    II. The Ministry of New and Renewable Energy aims to impart training on installation, operation, maintenance and repairs of solar rooftop systems at grassroot levels.
    III. It aims to create more than three lakhs skilled manpower through fresh skilling and up-skilling, under scheme component of capacity building.

    Which of the statements given above are correct?

  • Which of the following statements with regard to Green Hydrogen is/are correct

    Which of the following statements with regard to Green Hydrogen is/are correct?
    1. It is decarbonized hydrogen obtained from natural gas reforming combined with carbon capture and storage (CCS).
    2. It is produced using electrolysis of water with electricity generated by renewable energy.
    3. National Green Hydrogen Mission of India aims for abatement of nearly 50 MMT of annual greenhouse gas emissions by 2030.