What is Renewable Energy Sources?
Historical Background
Key Points
12 points- 1.
Solar energy is the most abundant renewable energy source. India has high solar irradiance, making it ideal for solar power generation. Solar power plants and rooftop solar panels are becoming increasingly common.
- 2.
Wind energy is harnessed using wind turbines. India has significant wind energy potential, particularly in coastal areas and certain states like Gujarat and Tamil Nadu.
- 3.
Hydroelectric power uses the energy of flowing water to generate electricity. Large hydropower projects and small hydro projects contribute to India's renewable energy mix.
- 4.
Biomass energy involves burning organic matter, such as agricultural waste and wood, to produce heat or electricity. It can also be converted into biofuels.
- 5.
Geothermal energy taps into the Earth's internal heat to generate electricity or provide direct heating. India has limited geothermal potential compared to other sources.
- 6.
The Indian government provides various incentives, such as subsidies, tax breaks, and feed-in tariffs, to promote renewable energy development. Explanation: A feed-in tariff is a policy mechanism designed to support the development of renewable energy sources.
- 7.
The Renewable Purchase Obligation (RPO) mandates that electricity distribution companies purchase a certain percentage of their electricity from renewable sources. RPO targets are set by state governments.
- 8.
The Green Energy Corridor project aims to integrate renewable energy into the national grid by building transmission infrastructure.
- 9.
Challenges in the renewable energy sector include land acquisition, grid integration, financing, and intermittency (variability) of solar and wind power.
- 10.
India is a member of the International Solar Alliance (ISA), an organization that promotes solar energy deployment globally. The ISA headquarters is in India.
- 11.
Energy storage solutions, such as batteries, are becoming increasingly important to address the intermittency of renewable energy sources.
- 12.
India's commitment to achieving net-zero emissions by 2070 relies heavily on the expansion of renewable energy capacity.
Visual Insights
Renewable Energy Sources: Key Aspects
Mind map showing the key aspects of renewable energy sources and their relevance for UPSC.
Renewable Energy Sources
- ●Types of RE
- ●Government Initiatives
- ●Challenges
- ●Environmental Benefits
Recent Developments
7 developmentsIndia added a record 17.5 GW of renewable energy capacity in 2023.
The government launched the PM-KUSUM scheme to promote solar irrigation pumps and solar power plants in rural areas.
There is increasing focus on developing offshore wind energy projects along India's coastline.
The government is promoting the use of green hydrogen as a clean energy carrier.
Debates continue regarding the optimal mix of renewable energy sources and the role of nuclear power in India's energy transition.
The Production Linked Incentive (PLI) scheme encourages domestic manufacturing of solar modules and other renewable energy equipment.
India is exploring the potential of floating solar power plants on reservoirs and water bodies.
This Concept in News
2 topicsIndia exceeds 50,000 MW power capacity addition in current fiscal year.
16 Feb 2026The news of India exceeding 50,000 MW power capacity addition, largely from renewable sources, underscores the increasing viability and importance of renewable energy. (1) This news highlights the *scalability* of renewable energy technologies, demonstrating that they can contribute significantly to meeting India's growing energy demands. (2) The news applies the concept of renewable energy in practice by showing how government policies and private sector investments are translating into tangible capacity additions. It also challenges the notion that renewable energy is unreliable or too expensive. (3) The news reveals that renewable energy is becoming increasingly cost-competitive with fossil fuels, making it a more attractive option for power generation. (4) The implications of this news for the concept's future are significant, suggesting that renewable energy will play an even greater role in India's energy mix in the years to come. This will require further investments in grid infrastructure, energy storage, and research and development. (5) Understanding renewable energy sources is crucial for analyzing this news because it provides the context for understanding the significance of the capacity addition and its implications for India's energy security, climate change mitigation, and economic development.
Assam's Power Sector Transformation: Lessons for India's Energy Upscaling
13 Feb 2026The Assam news highlights the practical challenges and opportunities in implementing renewable energy solutions at the state level. (1) It demonstrates how policy reforms and infrastructure investments can drive the adoption of renewable energy. (2) Assam's experience applies the concept of renewable energy by showcasing how a state can improve electricity access and reduce reliance on fossil fuels. (3) The news reveals the importance of community participation and tailored strategies for successful energy transitions. (4) The implications of this news are that other states can learn from Assam's successes and adapt similar strategies to their own contexts. (5) Understanding renewable energy sources is crucial for analyzing this news because it provides the context for evaluating Assam's efforts and their potential impact on India's overall energy goals. Without this understanding, it's difficult to assess the significance of Assam's achievements and their relevance to national energy policy.
Frequently Asked Questions
121. What are Renewable Energy Sources and what is their significance in the context of climate change?
Renewable energy sources are natural resources that replenish themselves quickly, such as solar, wind, hydro, geothermal, and biomass. They are crucial for reducing greenhouse gas emissions, combating climate change, improving air quality, and reducing dependence on imported fuels.
2. What are the key provisions related to Renewable Energy Sources in India?
The key provisions related to renewable energy sources in India include:
- •Solar energy is the most abundant renewable energy source, and India has high solar irradiance.
- •Wind energy is harnessed using wind turbines, with significant potential in coastal areas.
- •Hydroelectric power uses flowing water to generate electricity.
- •Biomass energy involves burning organic matter to produce heat or electricity.
- •Geothermal energy taps into the Earth's internal heat.
3. How does solar energy work in practice, and what are its advantages and disadvantages?
Solar energy is harnessed using solar panels that convert sunlight into electricity. Advantages include its abundance and low environmental impact. Disadvantages include intermittency (dependence on sunlight) and the initial cost of installation.
4. What are the challenges in the implementation of renewable energy projects in India?
Challenges in implementation include:
- •High initial costs
- •Intermittency of solar and wind energy
- •Land acquisition issues
- •Grid integration challenges
- •Financing and investment gaps
5. What is the significance of renewable energy in achieving India's energy security?
Renewable energy reduces India's dependence on imported fossil fuels, enhancing energy security. By diversifying the energy mix and utilizing domestic resources, India can insulate itself from global price fluctuations and geopolitical risks.
6. What are the important legal frameworks related to Renewable Energy Sources in India?
The important legal frameworks include the Electricity Act, 2003, National Electricity Policy, 2005, National Action Plan on Climate Change (NAPCC), Jawaharlal Nehru National Solar Mission, and National Wind-Solar Hybrid Policy, 2018.
7. What are the different types of renewable energy sources available in India?
The different types of renewable energy sources available in India are:
- •Solar energy
- •Wind energy
- •Hydroelectric power
- •Biomass energy
- •Geothermal energy
8. How does India's renewable energy sector compare with other countries?
India has made significant progress in renewable energy, particularly in solar and wind. It ranks among the top countries in terms of installed renewable energy capacity. However, challenges remain in terms of grid infrastructure and energy storage compared to developed nations.
9. What is the PM-KUSUM scheme and how does it contribute to renewable energy adoption?
The PM-KUSUM scheme promotes solar irrigation pumps and solar power plants in rural areas. This helps farmers generate their own electricity, reduce dependence on grid power, and sell surplus power to the grid, contributing to increased renewable energy adoption.
10. What are the limitations of biomass energy as a renewable energy source?
Limitations of biomass energy include:
- •Potential for deforestation if not managed sustainably
- •Air pollution from burning biomass
- •Competition with food production for land use
11. What is the future of renewable energy in India, considering the target of 500 GW by 2030?
The future of renewable energy in India is promising, with ambitious targets and increasing investments. Achieving the 500 GW target by 2030 requires accelerated deployment of solar, wind, and other renewable energy technologies, along with advancements in energy storage and grid infrastructure.
12. What are frequently asked aspects of Renewable Energy Sources in UPSC exams?
Frequently asked aspects include India's renewable energy targets, policies, different renewable energy sources, and government schemes. Expect factual questions about renewable energy sources and their potential. Also, questions related to the environmental impact and economic benefits are common.
Exam Tip
Focus on government schemes, targets, and the environmental impact of different renewable energy sources.
Source Topic
India exceeds 50,000 MW power capacity addition in current fiscal year.
EconomyUPSC Relevance
Renewable energy is a crucial topic for the UPSC exam. It is relevant to GS-3 (Economy, Environment) and Essay papers. Questions are frequently asked about India's renewable energy targets, policies, and challenges.
In Prelims, expect factual questions about different renewable energy sources and government schemes. In Mains, questions often require analytical understanding of the economic and environmental implications of renewable energy. Recent years have seen questions on energy security, climate change mitigation, and sustainable development, all of which are closely linked to renewable energy.
When answering, focus on providing a balanced perspective, highlighting both the opportunities and challenges. Use data and examples to support your arguments. Remember to link renewable energy with India's international commitments, such as the Paris Agreement and Sustainable Development Goals.