India’s solar power achieved a milestone of 92.12 GW as of October 2024, and this milestone is hugely backed by top solar EPC companies in India. From April to October 2024, India’s solar energy sector observed a growth from 72.02 GW to 92.12 GW. 

Currently, India has a total renewable energy capacity of 203.18 GW capacity. The solar industry witnessed a growth from 72.02 GW to 92.12 GW from October 2023-24. Some of India’s top renewable energy companies, like Tata Power Solar, Adani Group and ReNew contributed their share towards solar power projects in India. 

 

In this blog, we will cover the top 10 solar power epc companies in India; keep reading to know more:

Top Solar EPC Companies in India (ranked based on installed capacity)

Sterling & Wilson

Sterling & Wilson is one of the world's largest solar MEP(Mechanical, Electrical, and Plumbing) & EPC company. It delivers EPC and MEP services for solar energy and other sectors, such as power and data centers. 

They achieved a milestone of 268 global solar projects ranging from 1 MWp (Megawatt peak) to 1,177 MWp. Its global portfolio includes an EPC Portfolio of 19.4 GWp (Giga Watt peak) and an O&M of 8.22 GWp. 

Sterling & Wilson was recognized by Wood Mackenzie's Global PV O&M Report 2020 and ranked 1st in India and 2nd globally. Its services include solar PV and BESS (Battery Energy Storage Systems). It was incorporated on 13th June 1974 but ventured into the solar epc in 2011 in India. 

It secured its first EPC contract of 50 Mwp in India. It completed its first turnkey solar EPC project in Rajasthan and entered the International market for operations in 2013. It secured its first international solar epc project of 90 MWp in South Africa in 2014. In 2019, IHS Markit was recognized as the world's largest solar EPC solutions service provider. In 2022, Reliance New Energy secured a 40% stake in Sterling & Wilson.

Also Read: Top 10 Solar EPC Companies in the World [2024]

Adani Solar

Adani Green energy is one of the largest renewable energy companies in India. Its subsidiary, Adani Solar is known to be one of India's largest solar module and solar panel manufacturers, with a combined capacity of 4 GW. Apart from manufacturing, the company also specializes in EPC services. 

 

One of its major solar epc projects is the 30 GW Khavda solar power project. It has operationalized about 1000 MW of solar energy in this project. It has been achieved within 12 months with 2.4 million bifacial solar modules. 

Currently, AGEL (Adani Green Energy Limited) has achieved an operational capacity of 9,478 MW, of which 7,393MW of installed solar capacity. Apart from this project, Adani Green is constructing 750 MW solar projects in Rajasthan and Gujarat. For this project, Adani Green has secured USD 400 million from 5 International Banks.

Tata Power Solar

Tata Power Solar was founded in 1989 and was originally formed as a joint venture between Tata Power and BP Solar. Later, it was renamed Tata Power Solar as one of the subsidiary companies of the Tata Group. It is headquartered in Bangalore. It is also one of the top solar PV panel manufacturers in India. 

It is one of the most reliable solar EPC companies in India. It is known to deliver cost-effective solar solutions across the country. It currently has a 6.4 GW installed solar capacity as of July 2024, making it one of the top solar EPC companies in India. 

Its portfolio includes projects like the world's largest solar-powered cricket stadium, the Cricket Club of India (CCI) in Mumbai, India's largest single-axis solar tracker system, a ground-breaking 300 MW solar plant in Dholera, Gujarat, a 200 MW Solar Project in Bikaner, Rajasthan and Asia’s largest tea estate with 1040 kW Bifacial Solar System project in Chengmari Tea Estate.

On 3rd December 2024, Tata Power Renewables commissioned 431 MW Solar project in Neemuch, Madhya Pradesh. This project features a blend of single-axis solar tracker & bifacial modules. It also features 560 Wp and 565 Wp bifacial glass-to-glass modules that will offset 7,80,300 tonnes of CO2 annually. The solar energy produced in this project will be supplied to Western Central Railways & MP Power Management Co. Ltd.

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ReNew

ReNew is known as one of the leading suppliers and solar EPC companies in India. It was founded in 2011 and is the first Indian clean energy company to be listed on Nasdaq. It is headquartered in Gurugram, Haryana, and specializes in solar energy, wind energy, green hydrogen, and energy storage. It is one of the top renewable energy companies in India. 

It currently has a total portfolio of 16.3 GW of both commissioned and pipeline utility scale projects, of which 9.1 GW is committed and installed solar capacity. Currently, ReNew boasts a 5.5 GW of installed solar capacity. 

ReNew is the world's first clean company to be recognized as a "Lighthouse" by the World Economic Forum and operates across 150 + sites and 18 Indian states. In 2023, the COP28 UAE presidency presented ReNew with the "Energy Transition Changemaker" award. This was awarded for developing and deploying 1.3 GW, India's first round-the-clock power project.

 

On 9th December 2024, ReNew Power commissioned a 750 MW solar power project in Rajasthan. This solar PV project is planned with a total capacity of 1 GW and an investment of USD 2.4 billion (INR 21,000 crore). Once fully commissioned, it is expected to generate over 1,350 million electricity units per year, contributing to Rajasthan's power requirements.

L&T Solar

L&T, one of India's top construction companies, is also a leading solar EPC contractor. Its portfolio includes some of the largest solar plants in India. Apart from EPC (Engineering, Procurement and Construction), it also offers solutions such as Mobisol, L&T Tracker and Automated Module Cleaning System.

L&T Solar is one of the leading solar epc companies in India, and it has an installed solar capacity of 5.5 GWp. It was founded in 1938 and is headquartered in Mumbai. Its portfolio covers a 4 MW Floating Solar Power Plant for Tirupati Smart City Corporation (TSCCL) at the Kailashgiri Reservoir under the Smart City Mission of India.    

It specializes in Utility-scale solar PV, floating solar and micro-grids, and mega rooftops. It also offers products such as Battery Energy Storage Systems (BESS), Solar Pumps, and Battery Energy Storage Container Solutions. Not only in India, but L&T Solar operates across several other countries such as the Middle East and UAE.

On 8th July 2024, L&T Solar received orders for two solar PV plants in the MENA region from a leading developer in the Middle East worth USD 1 billion - USD 1.7 billion (INR 8,000 - 15,000 crores). The two solar PV plants in the MENA region are planned with a cumulative capacity of 3.5 GW.

On 30th January 2024, L&T was awarded EPC contract to develop an 1800 MW solar power plant in Dubai. This project will cover an area of 20 square kilometers and will become operational in three phases. On commission, the project will reduce around 2.4 million metric tons of carbon emissions annually. 

Hartek Group

Hartek Group is one of the leading EPC solar companies in India, founded in 1991. It specializes in EPC, Renewables, Technology, Construction, Manufacturing, and Fuel. 

 

Its vast portfolio has 350 EHV (Extra-High Voltage) and HV (High Voltage) substation projects. Currently, it boasts a portfolio of 7 GW of solar energy, including 100 MW+ rooftop solar solutions across 21 states. 

 

Apart from EPC, the company specializes in manufacturing HT/LT 440V to 33,000V electrical switchboard panels for indoor and outdoor applications. Additionally, it also produces Control & Relay Panels up to 220 KV, Compact Substation (CSS), and Bus Bar Trunking (BBT).

Jakson Green

Jakson Green, a part of the Jakson Group, specializes in EPC, IPP (Independent Power Producer), IHP (Independent Heat Producer), and O&M. It offers utility-scale projects in energy storage, green hydrogen, green ammonia, waste-to-energy, fuel cell technologies. 

Founded in 2022 (Jakson Green) and headquartered in Noida, it operates across 26 countries. Jackson Green plans to deliver renewable energy assets of 10 GW by 2025 and 20 GW by 2030. Currently, it has a portfolio of 4000 MW+ Solar EPC projects and 1300+ MW solar 0&M globally. Apart from solar, its portfolio includes 3000 MTPA of green methanol synthesis plants and 110 MTPA of green hydrogen production. 

 

After marking its position in the solar market, Jackson Green aims to enter electrolyzer manufacturing and aims to achieve a production of 1 million tons per annum of green hydrogen/ammonia by 2030. 

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InSolare Energy

Founded in 2008, it is headquartered in Bengaluru and is one of India's leading renewable energy companies. It offers solar, wind, technical services, storage, and green hydrogen services. Its portfolio includes solar parks, ground mount, single-axis trackers, carports, rooftop solar, and microgrids.

 

Insolare Energy has achieved a goal of 500 MW solar power plants across several states, such as Gujarat, Karnataka, Uttar Pradesh, and Maharastra. Apart from solar parks, it also has an installed capacity of 300 MW in ground-mounted solar PV projects and 90 MW using the single-axis tracker.

Gensol Engineering

Gensol Engineering began its journey of renewable energy in 2007 by providing carbon-credit advisory services to various industries. Today, Gensol Engineering provides Turnkey EPC, EV Leasing, Solar Trackers, and EV Manufacturing services. 

Also Read: Global Top 20 Electric Car Companies [2024]

With a portfolio that includes 650 + solar power projects with a team of 350+ team members across 19 states, it has achieved and installed a solar capacity of 770+ MWp. Apart from EPC, it also specializes in O&M for solar services worldwide.

Ashoka Buildcon

Ashoka Buildcon Limited is one the leading developers in India. It was founded in 1976 and is integrated with EPC, BOT (Build, Operate Transfer) and HAM (Hybrid Annuity Model). 

 

It specializes in PPP (Power Purchase Projects), Power projects, railway projects, and infrastructure projects in India. Their portfolio includes 50,000+ km of power lines network 300 + new power substation installations. Ashoka Buildcon entered the top solar power epc companies list by commissioning its first 150 MW solar PV project. This project was awarded to Ashoka Buildcon and Tata Power Solar by NTPC, and it is a 470 MW solar PV project. Of this, about 150 MW was allocated to Ashoka Buildcon. 

 

Also Read: Top 10 Solar EPC Companies in the World [2024]

Conclusion

Indian solar industry is extensively contributing its share towards India’s “Panchamrit” goals set by Prime Minister Narendra Modi. With advancing solar PV technology and constant incentive support from the government of India, a new benchmark in the renewable energy sector has been achieved. Companies like Tata Power Solar, Adani Group, and many more are contributing to India’s renewable energy goals. Thus, India continues to shine and observe substantial growth in the renewable energy sector.

FAQ’s

Which is the No 1 solar EPC company in India?

Tata Power Solar is No 1 solar EPC contractor in India with an installed capacity of 8.2 GW.

What is EPC in India's power sector?

The engineering, procurement, and construction of solar parks and plants is called EPC in India’s power sector.

Which is India's No 1 solar company?

Sterling & Wilson is India’s no 1 solar company that offers EPC and manufactures solar PV modules.

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