India’s solar energy sector has witnessed remarkable growth over the past decade, driven by ambitious government targets, falling technology costs, and increasing environmental awareness. Initiatives like the Ministry of New and Renewable Energy programs and the National Solar Mission have positioned India as one of the world’s fastest-growing solar markets.
As solar adoption accelerates across residential, commercial, and industrial segments, choosing the right solar company becomes critical. The right provider ensures not only efficient installation but also long-term reliability, performance, and return on investment. Below is a curated list of the top 10 solar power companies in India, known for their innovation, scale, and impact.
1. Tata Power Solar
Tata Power Solar, a wholly owned subsidiary of Tata Power, is one of India’s most established and trusted solar energy companies. With a legacy spanning over three decades, the company has played a pioneering role in shaping India’s solar ecosystem. Headquartered in Bengaluru, Tata Power Solar operates across the entire solar value chain, including manufacturing of high-quality solar cells and modules, as well as delivering comprehensive EPC (Engineering, Procurement, and Construction) solutions. Its strong focus on innovation, quality, and sustainability has positioned it as a leader in both rooftop and large-scale solar projects.
The company has built a robust portfolio of projects across diverse sectors such as residential, commercial, industrial, and utility-scale installations. It has executed several landmark projects, including solar installations for airports, railways, and large enterprises, while also empowering thousands of homes with rooftop solar solutions. Backed by the trusted Tata brand, Tata Power Solar stands out for its customer-centric approach, pan-India presence, and commitment to accelerating India’s transition toward clean and renewable energy.
Headquarters: C/o. The Tata Power Company Limited, Corporate Center B, 34 Sant Tukaram Road, Carnac Bunder, Mumbai – 400 009, Maharashtra.
Key Services
- Solar EPC (Engineering, Procurement, Construction)
- Rooftop solar solutions
- Solar manufacturing (modules and cells)
Notable Achievements
- Over 1.5 GW of rooftop installations
- Major projects for airports, railways, and large industries
2. Adani Solar
Adani Solar, the solar manufacturing and EPC arm of the Adani Group, is one of India’s largest integrated solar companies. Headquartered in Ahmedabad, it operates one of the country’s most advanced solar manufacturing facilities, producing high-efficiency photovoltaic (PV) cells and modules. As part of Adani’s broader commitment to renewable energy and sustainability, the company focuses on building a fully integrated solar value chain—from manufacturing to project development – aligned with India’s goal of achieving energy security and reducing carbon emissions.
The company has played a key role in scaling utility-scale solar adoption in India by delivering large, high-performance solar projects across the country. Known for its emphasis on quality, innovation, and scale, Adani Solar continues to invest in next-generation technologies and expanding manufacturing capacity. Its integrated approach, backed by strong infrastructure and financial strength, positions it as a major contributor to India’s clean energy transition and one of the most influential players in the solar industry.
Headquarters: Village Tunda & Siracha, Taluka Mundra, Mundra, Kutch 370 435, Gujarat, India.
Key Services
- Solar PV module manufacturing
- Utility-scale solar project development
- EPC services
Notable Achievements
- One of the largest solar manufacturing facilities in India
- Key contributor to India’s utility-scale solar capacity
3. ReNew Power
ReNew Power (ReNew) is one of India’s leading renewable energy companies, founded in 2011 and headquartered in Gurugram. The company focuses on developing, owning, and operating large-scale solar and wind energy projects, supplying clean power to utilities and corporate customers across India. With a strong commitment to sustainability, ReNew has rapidly expanded its footprint and built a diversified portfolio of renewable assets, positioning itself as a key player in India’s energy transition.
Beyond power generation, ReNew is actively investing in emerging clean energy solutions such as energy storage, green hydrogen, and digital energy management. The company leverages advanced analytics and technology to optimize performance and efficiency across its operations. Backed by global investors and listed on international markets, ReNew stands out for its scale, innovation, and long-term vision to support India’s decarbonization goals and drive a more sustainable energy future.
Headquarters: 138, Ansal Chambers- ll, Bhikaji Cama Place, New Delhi -110066.
Key Services
- Solar and wind energy generation
- Energy storage solutions
Notable Achievements
- Over 13 GW of installed renewable capacity
- Listed on NASDAQ
4. Waaree Energies
Waaree Energies is one of India’s leading solar energy companies, with a strong legacy dating back to 1989. Headquartered in Mumbai, the company has grown into a major global player in solar PV module manufacturing, with one of the largest production capacities in India. Waaree operates across the solar value chain, offering high-quality photovoltaic modules along with comprehensive EPC (Engineering, Procurement, and Construction) services. Its commitment to innovation, quality standards, and sustainable practices has enabled it to serve a wide range of customers across residential, commercial, industrial, and utility-scale segments.
The company has established a significant international presence, exporting solar products to multiple countries while maintaining a robust domestic footprint. Waaree is known for its focus on advanced manufacturing technologies, rigorous quality control, and customer-centric solutions. In addition to module manufacturing, it provides project development, installation, and operations & maintenance services, making it a full-service solar solutions provider. With its scale, reliability, and global reach, Waaree Energies continues to play a vital role in advancing India’s renewable energy ambitions.
Headquarters: Commerz 2, 11th Floor, Oberoi Garden City, International Business Park, Yashodham, Goregaon, Mumbai, Maharashtra 400063.
Key Services
- Solar panel manufacturing
- EPC services
- Rooftop solar installations
Notable Achievements
- Manufacturing capacity exceeding 10 GW
- Extensive export presence
5. Vikram Solar
Vikram Solar is one of India’s leading solar energy companies, recognized globally for its high-quality photovoltaic (PV) module manufacturing and comprehensive solar solutions. Headquartered in Kolkata and founded in 2006, the company has established itself as a trusted name in the renewable energy sector, with a strong presence across domestic and international markets. Vikram Solar specializes in efficient and reliable solar modules, along with end-to-end EPC (Engineering, Procurement, and Construction) services, catering to utility-scale, commercial, and industrial projects.
The company has delivered solar projects across multiple continents and is consistently ranked among Tier-1 solar module manufacturers. Vikram Solar emphasizes innovation, advanced technology, and stringent quality standards, ensuring high performance and durability of its products. With a focus on sustainability and long-term value creation, the company continues to expand its global footprint while contributing significantly to India’s clean energy goals.
Headquarters: The Chambers, 8th Floor, 1865, Rajdanga Main Road, Kolkata 700107, West Bengal, India.
Key Services
- Solar module manufacturing
- EPC and O&M (operations & maintenance)
Notable Achievements
- Projects across six continents
- Tier-1 solar module manufacturer status
6. Azure Power
Azure Power is one of India’s leading independent solar power producers, focused on developing, owning, and operating utility-scale solar energy projects. Established in 2008 and headquartered in New Delhi, the company has been a pioneer in India’s solar sector, playing a key role in the early adoption and expansion of grid-connected solar power. Azure Power primarily supplies clean energy to government utilities and commercial customers through long-term power purchase agreements (PPAs), ensuring stable and reliable revenue streams.
The company has built a strong portfolio of solar assets across multiple states in India and is recognized for its execution capabilities and project quality. Azure Power emphasizes sustainability, operational efficiency, and long-term value creation, leveraging advanced technologies to optimize energy generation. With a track record of delivering large-scale solar projects and contributing to India’s renewable energy targets, Azure Power stands out as a trusted player driving the country’s transition toward a cleaner energy future.
Headquarters: 8th Floor, Tower A, DLF Infinity, Cyber City, Phase II, Gurugram-122002, Haryana.
Key Services
- Solar project development
- Power generation and supply
Notable Achievements
- Among the first Indian renewable companies listed on NYSE
- Large portfolio of government-backed solar projects
7. Hero Future Energies
Hero Future Energies (HFE), the renewable energy arm of the Hero Group, is a fast-growing clean energy company focused on delivering sustainable power solutions. Established in 2012 and headquartered in New Delhi, HFE develops, owns, and operates renewable energy projects across solar, wind, and hybrid segments. The company has expanded its footprint beyond India into international markets, reflecting its ambition to become a global player in the renewable energy space.
HFE is known for its diversified renewable portfolio, strong project execution capabilities, and commitment to innovation in clean energy technologies. The company actively explores emerging areas such as energy storage and hybrid solutions to enhance efficiency and reliability. With a clear focus on sustainability and reducing carbon emissions, Hero Future Energies stands out for its global outlook, strong backing from the Hero Group, and its role in supporting the transition toward a low-carbon energy future.
Headquarters: 202, 2nd Floor, Okhla Industrial Estate, Phase- III, New Delhi- 110 020, India.
Key Services
- Solar and wind power generation
- Hybrid renewable solutions
Notable Achievements
- Rapidly expanding international portfolio
- Focus on sustainable energy innovation
8. Sterling and Wilson Renewable Energy
Sterling and Wilson Renewable Energy Limited is a leading global EPC (Engineering, Procurement, and Construction) solutions provider in the renewable energy sector. Part of the Shapoorji Pallonji Group, the company is headquartered in Mumbai and has built a strong reputation for executing large-scale solar power projects across the world. It specializes in utility-scale solar EPC services, offering end-to-end solutions that include design, engineering, procurement, construction, and commissioning of solar power plants.
With a presence in over 25 countries, the company has delivered a diverse portfolio of projects across multiple geographies, showcasing its global execution capabilities. Sterling and Wilson Renewable Energy also focuses on emerging areas such as hybrid energy systems and energy storage solutions, aligning with evolving market needs. Known for its technical expertise, strong project management, and international reach, the company stands out as one of the key players driving large-scale solar adoption worldwide while contributing significantly to India’s renewable energy growth.
Headquarters: No. – 4A/14, 3rd Floor, 6th Main, Chikka Adugodi, New Extension, Tavarekere Main Road, Bangalore – 560029.
Key Services
- Utility-scale solar EPC
- Hybrid and energy storage solutions
Notable Achievements
- Projects in over 25 countries
- Among the largest global solar EPC players
9. Loom Solar
Loom Solar is a fast-growing Indian solar energy company focused on providing innovative and accessible solar solutions for residential and small commercial users. Founded in 2018 and headquartered in Faridabad, Haryana, the company is part of a broader group with experience in power backup solutions. Loom Solar specializes in manufacturing advanced solar panels and offering complete rooftop solar systems, along with inverters and lithium battery storage solutions designed for modern energy needs.
The company is known for its customer-centric approach and strong digital-first business model, enabling easy online purchasing and nationwide delivery. Loom Solar emphasizes high-efficiency products, smart technology integration, and simplified installation processes, making solar adoption more convenient for homeowners. With a growing network of partners and a focus on innovation, the company stands out for its agility, transparency, and commitment to promoting clean energy adoption at the grassroots level in India.
Headquarters: 14/6 Mathura Road, Sector 27B, Faridabad, Haryana (India) -121003.
Key Services
- Rooftop solar systems
- Lithium battery solutions
- Solar inverters
Notable Achievements
- Strong digital-first distribution model
- Popular among residential users
10. NTPC Renewable Energy Limited
NTPC Renewable Energy Limited (NTPC REL) is a wholly owned subsidiary of NTPC Limited, India’s largest power utility. Established to accelerate the group’s renewable energy ambitions, NTPC REL focuses on developing and managing solar, wind, and hybrid energy projects across the country. The company plays a central role in NTPC’s strategy to significantly expand its non-fossil fuel capacity and contribute to India’s clean energy transition.
NTPC REL is actively involved in large-scale renewable projects, including solar parks, floating solar installations, and emerging green hydrogen initiatives. Leveraging NTPC’s strong infrastructure, technical expertise, and project execution capabilities, the company is well-positioned to deliver reliable and cost-effective clean energy solutions. With a clear commitment to sustainability and innovation, NTPC Renewable Energy Limited stands out as a key driver of India’s renewable energy growth and long-term decarbonization goals.
Headquarters: E-3, Ecotech-II, Udyog Vihar, Greater Noida Gautam Buddha Nagar, Uttar Pradesh, India – 201306.
Key Services
- Solar and wind project development
- Green hydrogen initiatives
Notable Achievements
- Large-scale solar parks across India
- Key player in government-backed renewable projects
Industry Trends and Government Support
India’s solar sector is supported by several policy initiatives, including:
- Production Linked Incentive (PLI) scheme for solar manufacturing
- Rooftop Solar Programme Phase II
- Target of 500 GW non-fossil fuel capacity by 2030
Falling solar tariffs and advancements in battery storage are also accelerating adoption across sectors.
Conclusion
Solar energy is no longer just an alternative – it is central to India’s energy future. With rising energy demand and climate commitments, the role of solar power companies has become more crucial than ever.
The companies listed above are not only driving innovation and capacity expansion but also making solar energy more accessible and affordable across the country. Whether it’s large-scale infrastructure or rooftop solutions, these industry leaders are shaping a cleaner, more sustainable India.
Choosing the right solar partner can significantly impact performance, savings, and long-term reliability—making informed decisions more important than ever in this rapidly evolving sector.
