Top 10 Solar Companies in India

Top 10 Solar Companies in India 2025

The Indian solar industry is experiencing tremendous growth and also aiming to become the global leader in renewable energy. 

It has been found that this is expected to nearly double to 195.11 GW by 2029. Driven by government initiatives the Indian solar industry has become the fastest growing in the world and focuses on renewable energy as well. 

However, the demand for solar companies is increasing due to numerous factors. This means right from environmental concerns, advancements in technology, government incentives, and also declining cost of solar energy.

But who is on top within this?

In this article we will help you to uncover the Top 10 Solar Companies in India 2025:

1. Reliance New Solar Energy

Reliance New Solar Energy is a subsidiary of Reliance Industries Limited and one of the largest companies in India.

They are one of the younger players and even hold an ambition to become a major force in Indian renewable energy.

Reliance is developing one of the massive Dhirubhai Ambani Green Energy Giga Complex (Jamnagar, Gujarat). This is around a 5,000-acre facility and relies on the top solar companies in India and involves Photovoltaic panels, Fuel cell systems, Green Hydrogen, Energy storage, and Power electronics.

Besides this, it has been found that Reliance Industries Limited is also investing in new technologies. They have also collaborated with leading global technology companies to even develop more advanced solar cells and energy storage solutions.

But besides these, reliance on new solar energy does have other ambitions too.

• They aim to be one of the major players in solar panel manufacturing.
• Developing large-scale energy storage solutions.
• Contribution towards the clean energy solutions and this leads it towards the Top 10 Solar Companies in India.

2. NTPC Limited

Formerly known as National Thermal Power Corporation, is one of the leading private sector companies in India. 

NTPC limited was established in 1975 and is one of the dominant players in the country’s power generation. But they are also expanding their presence in renewable energy with a total installed capacity of over 75,958 MW.

They operate thermal efficient thermal power plants across the country and utilise various fuels like coal, gas, and imported coal.

NTPC Limited is actively diversifying its portfolio towards renewable sources. They are further expanding their solar power capacity as well with the help of setting up large-scale solar parks. 

They even have a significant presence in hydropower generation contributing to clean and electricity production.

In addition, they are also exploring other renewable energy sources like wind and geothermal power.

• NTPC is also adopting cleaner technologies as well like supercritical and ultra-supercritical.
• Also, focus on renewable and even responsive waste management that majorly reflects their commitment.

• Adani Green Energy Limited

Adani Green Energy Limited is considered to be the top solar company in India as of 2024. Upon research, we found that it is ranked as the second-largest global solar PV developer. They are no doubt among the list of Top 10 Solar Companies in India 2024. 

Adani Group is the parent company of AGEL and also has a solar manufacturing arm.

• They have a manufacturing capacity of 4 GW, as they develop, build, own, operate and even maintain utility-scale grid connector solar and wind power projects.
• They sell power with the help of long-term power purchase agreements. 

• NHPC Limited

When we are discussing the top 10 solar companies in India in 2024, then NHPC Limited is one of the leading Indian companies in the hydropower sector.

They were established in 1975, and are a public sector undertaking. However, it has been found that recently they have also expanded into other renewable energy sources like solar, wind, geothermal, and tidal.

NHPC further plays a crucial role in developing hydroelectric power projects in India. This mainly involves handling planning and even construction. 

• They are also considered to be Mini Ratna Category-I Enterprise (by the government of India).
• When it comes to determining their financial condition then they are potentially strong. 

• Tata Power Solar Systems Limited

They were formerly known as Tata BP Solar and are also the leading solar company in India in 2024. 

Tata Power Solar System Ltd is India’s largest integrated solar company with a manufacturing capacity of 400 MW and 300 MW of cells.

They offer different services for solar power projects. In short means handling the entire project lifecycle. 

In addition, it has been found that they are a major player in India’s rooftop solar market. This is because they were found to install the world’s largest solar rooftop installation in Mumbai Cricket Stadium (2017).

• When it comes to global presence then they have shipped over 3 GW of solar modules worldwide. This makes them among the Top 10 Solar Companies in India 2024.
• They are on a mission to significantly reduce India’s carbon footprint and even promote clean energy.

• Mahindra Solar Private Limited

Mahindra Solar Private Limited is the biggest and top solar company in India.

They focus on providing solar power solutions directly to consumers. This means they cater to the commercial, residential, and agricultural sectors offering rooftop solar panels, solar water pumps and even other sustainable energy.

They are committed to excellence, sustainability and also innovation and making their name within the industry.

• They are dedicated to large-scale renewable energy projects. This means they are known to develop and operate utility-scale and wind power plants. 
• Further, they also participate in tenders for solar power projects and even sell electricity with the help of power purchase agreements.

• Jakson Engineers Limited

One of the other well-established players in the market among the top 10 solar companies in India is Jakson Engineers Limited.

It is a part of the Jackson group and has a diversified interest towards power generation, EPC, manufacturing, and hospitality.

There is no doubt that Jakson Engineers Limited has made a significant contribution towards India’s solar sector (offering turnkey solar solutions). This mainly includes rights from design, engineering, construction and maintenance. 

• The company has even executed numerous solar projects across India right from rooftop installations to utility-scale solar power plants. 
• No doubt, they have gained recognition for their expertise in the solar EPC segment.

• Sembcorp Green Infra Limited

Sembcorp Green Infra is the leading renewable energy company in India. They mainly focus on the construction, development and even operation of renewable energy projects.

Further, it is a subsidiary of Sembcorp Energy India Limited (known to be a global leader in sustainable solutions.

They have a diversified portfolio of renewable energy assets (wind and solar projects). This has made them to be among the top 10 solar companies in India.

• Sembcorp Green is known for its expertise in developing utility-scale renewable energy projects across various states of India.
• Further, they are committed to promoting sustainability and even clean energy transition in India. Like all other top solar companies, Sembcorp Green Infra Limited even continues to explore opportunities for growth and innovation in the renewable energy sector.

• Sterling and Wilson Solar Limited

Sterling & Wilson Solar Limited is also one of the global leaders when we are discussing the top 10 solar companies in India.

They specialize in the design, construction, and also installation of solar plants.

They offer EPS services for solar power projects like site surveys, designing, engineering, and more. In addition, they also specialize in rooftop solar solutions for commercial, residential, and also industrial customers. 

This in turn helps them to reduce their energy costing and even carbon footprint.

• Talking about their global presence, they have completed various projects across Asia, Africa, the Middle East, Europe, and the Americas. No doubt, they have a proven track record and are determined to be the trusted partner.
• In addition, they are also committed to offering sustainability and even renewable energy adoption.

Sunpower Solar Systems Private Limited

One of the other reputed solar companies in India is Sunpower Solar Systems Private Limited. They offer a unique range of products and services to meet the increasing demand for renewable energy and hence falls within the Top 10 Solar Companies in India 2024.

Also, the company is dedicated to offering sustainable development and even reducing reliance on fossil fuels. They have also gained numerous recognition towards their contribution to the solar energy industry.

• Their key offerings are solar panel installation, solar water heating systems, power plants, and solar inverter systems. They are committed to delivering high-quality solar products.
• Further, Sunpower Solar System Private Limited also invests in research and development to remain at the top among the top solar companies. They have earned recognition for their contributions to the solar energy industry.

Summary

We have found out that the solar energy sector in India is on the rise with each passing day. This is mainly done by the significant growth and innovation that the Top 10 Solar Companies in India in 2024 are making.

Therefore with the help of technological advancements, strategic partnerships, and sustainability, all of the above top solar companies in India are meeting the increased demand for solar solutions upon contributing the economic growth.