Top 10 Solar EPC Companies in India 2025

Discover the Top 10 Solar EPC Companies in India 2025 for 2025, delivering sustainable, large-scale solar solutions for industries and institutions.

Jun 17, 2025 - 10:21

Industrial rooftop solar EPC installation by one of the Top 10 Solar EPC Companies in India 2025

Introduction

India's solar sector has seen exponential growth in recent years, supported by favorable government policies, growing awareness of sustainability, and significant investments in infrastructure. As the country progresses toward its goal of 500 GW of non-fossil fuel-based energy by 2030, solar EPC (Engineering, Procurement, and Construction) companies are emerging as key enablers of this green transition.

Solar EPC providers manage the end-to-end execution of solar energy projects—from system design and engineering to procurement of materials and construction of solar plants. For industries, institutions, and government bodies seeking to reduce their carbon footprint and achieve energy independence, selecting the right EPC partner is vital for success. In this blog, we highlight the Top 10 Solar EPC Companies in India 2025, offering insights into their capabilities, expertise, and contributions to India’s clean energy landscape.

Understanding the Role of Solar EPC Companies

Before diving into the list of top performers, it’s important to understand what makes a solar EPC company effective. An ideal solar EPC firm:

Designs efficient, site-specific systems
Manages procurement of quality equipment (modules, inverters, BOS)
Ensures timely construction, commissioning, and regulatory approvals
Provides operations and maintenance (O&M) services
Delivers maximum performance and ROI

Explore: What is EPC in Solar Projects

Choosing one of the top EPC solar companies in India guarantees not only technical competence but also streamlined execution, long-term support, and cost efficiency.

Top 10 Solar EPC Companies in India 2025

1. Rayzon Green

Rayzon Green is widely recognized among the Top 10 Solar EPC Companies in India 2025, known for its precision, innovation, and high-performance solar installations. With headquarters in Gujarat, Rayzon Green specializes in industrial rooftop and ground-mounted projects and has completed several landmark solar installations for factories, warehouses, educational institutions, and commercial properties.

Notable Capabilities:

Rooftop and ground-mounted solar EPC
Custom solutions for industrial clients
SCADA integration and smart analytics
Net metering, carbon audit, and subsidy support
O&M and post-installation services

Key Projects:

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2. Tata Power Solar

A subsidiary of Tata Power, this company has established itself as a trusted name in solar EPC. With over three decades of experience, Tata Power Solar offers customized solutions for government, residential, and industrial sectors.

3. Adani Solar

As one of India’s biggest energy players, Adani Solar brings scale, speed, and technical innovation to solar EPC projects. Its vertically integrated setup ensures consistent quality and timely project delivery.

4. Sterling & Wilson Renewable Energy Ltd

Globally acclaimed for its EPC expertise, Sterling & Wilson handles large-scale utility projects with a strong focus on engineering precision and global standards.

5. Jakson Group

Jakson offers end-to-end EPC services with a strong foothold in the northern states. Their in-house design and engineering team focuses on efficient solar installations for institutions and commercial clients.

6. Vikram Solar

Combining high-efficiency PV modules with EPC excellence, Vikram Solar delivers robust performance in diverse terrains. Their hybrid systems and utility-scale projects are highly regarded.

7. Waaree Energies

Waaree is one of India’s oldest solar firms with a strong module manufacturing capacity. Their EPC wing handles rooftop, utility-scale, and floating solar projects across India.

8. Mahindra Susten

Mahindra Susten focuses on sustainability-driven EPC with IoT and AI-powered performance tracking. Their green campuses and smart energy systems stand out in the industry.

9. ReNew Power

Now known as ReNew, this company has a massive renewable portfolio and a growing solar EPC division focused on both utility and commercial sectors.

10. CleanMax Enviro Energy Solutions

Popular in the commercial sector, CleanMax offers efficient solar EPC for corporates, IT parks, and educational campuses. Their focus on rooftop and OPEX model makes them unique.

Why Choosing the Right Solar EPC Company Matters

Selecting the right solar EPC service provider is crucial for the success of any solar project. A reliable EPC company not only ensures the smooth execution of engineering, procurement, and construction phases but also guarantees long-term efficiency and returns. In India’s rapidly growing solar sector, where timely execution and quality standards can make or break a project, working with a top-tier solar EPC company ensures optimal system design, procurement of Tier-1 components, and seamless installation. Whether it’s a rooftop system for a commercial complex or a utility-scale ground-mounted solar park, the expertise of an EPC partner is what drives performance and profitability.

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Key Features of Top Solar EPC Providers

What sets the Top 10 Solar EPC Companies in India 2025 apart from the rest? These industry leaders typically bring decades of experience, robust in-house engineering teams, strong supplier networks, and a deep understanding of local compliance and grid integration. They often provide turnkey solutions that include everything from site feasibility analysis and design to after-sales service and maintenance. Moreover, these companies invest heavily in innovation, offering solutions like floating solar, bifacial modules, and smart energy monitoring systems, to stay ahead of market needs and sustainability goals.

Role of EPC in Solar Project Success

The EPC (Engineering, Procurement, and Construction) phase is the backbone of any successful solar energy installation. It ensures that the design is technically sound, the materials used are high-quality, and the construction is completed on time with minimal errors. Top solar EPC providers in India offer full-scope project management services, including permitting, environmental clearance, equipment sourcing, construction, and system commissioning. Their end-to-end service model allows clients to enjoy a hassle-free experience while maximizing energy generation and minimizing payback time.

Growth of the Indian Solar EPC Market

India is witnessing an exponential rise in solar adoption, thanks to government policies, subsidies, and rising awareness about clean energy. This growth has given rise to several EPC companies that specialize in industrial, residential, and commercial solar projects. According to recent reports, the Indian solar EPC market is expected to grow at a CAGR of over 20% in the coming years. With increasing demand for reliable and cost-effective renewable energy, the top solar EPC companies in India are constantly upgrading their services, technologies, and capabilities to stay competitive and deliver value to end-users.

Relevant Reads:

Top 10 Solar EPC Companies Globally

Globally, several EPC companies have made significant contributions to the solar energy landscape. Here are ten leading solar EPC firms worldwide:

1. Quanta Services (USA):

Headquartered in Texas, Quanta Services leads in utility-scale solar installations, with over 2.7 GW installed in 2022.

2. McCarthy Building Companies (USA):

Based in Missouri, McCarthy has installed approximately 1.87 GW of solar capacity, specializing in large-scale projects.

3. SOLV Energy (USA):

Operating from California, SOLV Energy focuses on utility-scale solar projects, with over 1.6 GW installed in 2022.

4. Mortenson (USA):

A Minnesota-based company, Mortenson has a strong renewable energy portfolio, with 1.43 GW of solar installations.

5. Signal Energy (USA):

Headquartered in Tennessee, Signal Energy specializes in utility-scale solar EPC services, with over 1.3 GW installed.

6. Moss (USA):

Based in Florida, Moss has completed over 1.1 GW of solar projects, focusing on large-scale installations.

7. Blue Ridge Power (USA):

Operating from North Carolina, Blue Ridge Power has installed over 1 GW of solar capacity, emphasizing utility-scale projects.

8. IEA (USA):

Infrastructure & Energy Alternatives, based in Indiana, offers comprehensive EPC services with over 1 GW of solar installations.

9. Black & Veatch (USA):

A Kansas-based company, Black & Veatch provides EPC services across various sectors, including solar, with 743 MW installed.

10. Rosendin Electric (USA):

Headquartered in California, Rosendin Electric has installed 725 MW of solar capacity, focusing on large-scale projects.

Conclusion

India's journey towards a clean and self-reliant energy future is powered by innovative and committed solar EPC service providers. The Top 10 Solar EPC Companies in India 2025 highlighted here are not only executing large-scale projects but also redefining how businesses approach energy use. Their expertise ensures optimized energy production, cost efficiency, and alignment with green mandates.

Whether you're a business owner, industrial decision-maker, or sustainability enthusiast, working with these EPC leaders means investing in long-term value, environmental responsibility, and future readiness.

Call to Action

Partner with one of the Top 10 Solar EPC Companies in India 2025 like Rayzon Green to ensure timely project delivery, regulatory support, and guaranteed performance. Explore how we can tailor your solar journey with excellence.

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FAQs

What is a solar EPC service provider?
A solar EPC company handles end-to-end design, material procurement, construction, and installation of solar power systems.
Who are India’s top solar EPC firms in 2025?
Rayzon Green, Tata Power, Adani Solar, Sterling & Wilson, and Waaree Energies are among the top EPC firms in India.
What types of solar projects do EPC companies handle?
They manage rooftop, ground-mounted, utility-scale, floating, and hybrid solar systems.
Are EPC companies involved in net metering approvals?
Yes. Most reputed EPC firms handle net metering documentation and grid integration.
How to choose the right solar EPC company?
Look for proven experience, certified products, end-to-end support, government recognition, and strong after-sales service.