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Top 10 Best Indian Companies in Solar Energy 2025

Top 10 Best Indian Companies in Solar Energy 2025

India has emerged as a global leader in solar energy, thanks to its aggressive renewable energy policies and ambitious sustainability goals. As of 2025, the country boasts several key players in the solar sector that contribute significantly to its growing renewable energy capacity. These companies are leading the charge in solar power generation, solar panel manufacturing, and innovative energy solutions, making India a hub for solar investments.

In this article, we will explore the top 10 best Indian companies in solar energy in 2025, highlighting their contributions, achievements, and future potential.


1. Adani Green Energy Ltd.

Adani Green Energy Ltd.

Adani Green Energy Ltd. (AGEL) is one of the largest renewable energy companies in India, with a massive portfolio in solar power. The company has an operational capacity of over 11 GW of renewable energy projects and plans to reach 50 GW by 2030.

AGEL has invested heavily in large-scale solar farms, hybrid energy projects, and sustainable infrastructure. The company has also secured multiple power purchase agreements (PPAs) with government and private entities, reinforcing its dominant position in India’s renewable energy sector.

Key Highlights:

  • One of the world’s largest solar power developers
  • Plans to achieve 50 GW of renewable capacity by 2030
  • Strong international partnerships in green energy projects

2. Tata Power Solar Systems

Tata Power Solar, a subsidiary of Tata Power, is one of India’s oldest and most respected solar companies. With over three decades of experience, it has played a pioneering role in the country’s solar revolution.

Tata Power Solar manufactures high-quality solar PV modules and offers EPC (Engineering, Procurement, and Construction) solutions for large-scale projects. It has successfully installed over 3 GW of solar capacity across India, including solar rooftop installations, commercial projects, and rural electrification programs.

Key Highlights:

  • Over 3 GW of solar installations in India
  • A leader in solar rooftop and on-grid solutions
  • High-quality solar panel manufacturing with a strong R&D focus

3. ReNew Power

ReNew Power to Supply 210 MW Solar Power to Amazon - SolarQuarter

ReNew Power is one of India’s largest independent power producers (IPPs) in the renewable energy sector. It has a well-diversified portfolio that includes solar, wind, and hydroelectric power. The company has a strong commitment to sustainability and has implemented several innovative solar projects across India.

With more than 10 GW of total renewable energy capacity, ReNew Power is a significant player in the solar energy market. The company also emphasizes battery storage solutions and smart grid technology to enhance the efficiency of solar energy distribution.

Key Highlights:

  • A major contributor to India’s clean energy transition
  • Focuses on large-scale solar farms and hybrid projects
  • Investing in battery storage and smart grid technology

4. Vikram Solar

Vikram Solar is a leading manufacturer of high-efficiency solar PV modules and offers EPC solutions for large-scale projects. With a production capacity of 1.2 GW, the company has a strong presence both in India and international markets.

Vikram Solar is known for its cutting-edge solar technology, including bifacial modules and floating solar power plants. The company also focuses on research and innovation, making it a key player in India’s solar manufacturing ecosystem.

Key Highlights:

  • A leading solar module manufacturer in India
  • Known for innovative solar technologies, including floating solar plants
  • Strong presence in domestic and international markets

5. Waaree Energies Ltd.

Waaree Energies is India’s largest solar panel manufacturer, with a 2 GW production capacity. The company provides a wide range of solar products, including PV modules, solar inverters, and EPC services.

Waaree has been actively involved in utility-scale solar projects, as well as distributed solar solutions for commercial and residential customers. Its strong focus on quality and performance has made it one of the most trusted brands in the solar energy industry.

Visit Waaree Energies here

Key Highlights:

  • India’s largest solar PV module manufacturer
  • Provides EPC services and turnkey solar solutions
  • A strong focus on quality and innovation

6. Azure Power

Azure Power is a key player in the Indian solar energy market, specializing in utility-scale and rooftop solar projects. The company develops, constructs, and operates solar power plants across India, with a focus on long-term sustainability.

Azure Power has secured multiple PPAs with state and central government agencies, ensuring a stable revenue model. Its commitment to reducing India’s carbon footprint has earned it a strong reputation in the industry.

Key Highlights:

  • A leading developer of utility-scale solar projects
  • Focuses on government-backed solar initiatives
  • Provides high-efficiency rooftop solar solutions

7. Suzlon Energy

Suzlon Energy shares in focus after Q3 profit jumps 90% YoY to Rs 387 crore  - The Economic Times

While Suzlon Energy is primarily known for wind energy, the company has made significant strides in the solar power sector. Suzlon has diversified into solar farm development, EPC services, and hybrid renewable energy solutions.

Leveraging its expertise in renewable energy, Suzlon is working towards integrating solar-wind hybrid projects to maximize efficiency and sustainability. The company’s commitment to clean energy makes it a notable player in the solar industry.

Key Highlights:

  • Expanding into solar power generation
  • Focus on hybrid energy solutions combining solar and wind power
  • Strong R&D for renewable energy efficiency

8. Sterling and Wilson Solar

Sterling and Wilson Solar is one of India’s largest pure-play solar EPC solutions providers. The company operates globally, delivering high-quality solar infrastructure for large-scale projects.

With projects across multiple continents, Sterling and Wilson Solar has built a strong reputation in designing, engineering, and maintaining solar power plants. The company focuses on cost-effective and efficient solar solutions, making it a preferred choice for large-scale solar investments.

Key Highlights:

  • A global leader in solar EPC services
  • Expertise in developing large-scale solar power plants
  • A strong presence in international markets

9. Goldi Solar

Goldi Solar is a fast-growing solar panel manufacturer and EPC service provider in India. The company produces high-performance PV modules suitable for residential, commercial, and industrial applications.

With a strong focus on sustainability and affordability, Goldi Solar aims to make solar energy accessible to all segments of society. The company continues to expand its manufacturing capacity to meet the rising demand for solar power solutions.

Key Highlights:

  • A leading solar panel manufacturer in India
  • Provides turnkey EPC solutions for various solar projects
  • Focus on affordability and sustainability

10. Adani Solar

Adani Solar, a subsidiary of Adani Group, is a major contributor to India’s solar capacity. The company operates a fully integrated solar manufacturing facility and offers end-to-end solar energy solutions, including module production and EPC services.

With a strong focus on expanding solar infrastructure in India, Adani Solar is working towards making solar energy more accessible and cost-effective. The company has ambitious plans to increase its production capacity in the coming years.

Key Highlights:

  • Integrated solar manufacturing and EPC solutions
  • Strong focus on expanding solar infrastructure
  • Plans to scale up production capacity

Conclusion

India’s solar energy sector is experiencing exponential growth, with these top companies leading the way. From large-scale solar farms to innovative solar panel manufacturing, these companies are playing a crucial role in achieving India’s renewable energy targets.

As the country moves towards a greener future, the contributions of these Indian companies in solar energy will continue to shape the industry, making sustainable energy more accessible and efficient.

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