Top 10 Solar EPC Companies in India (2026 Edition)
- Posted by Infisol Energy
- November 12, 2025
India’s solar journey is entering an exciting new phase. With industries, businesses, and institutions steadily moving toward clean energy, the role of solar EPC companies in India has never been more crucial.
At Infisol Energy, we’ve seen this transformation unfold closely. Over the last decade, we’ve helped hundreds of clients transition to sustainable power through reliable, end-to-end solar EPC solutions.
In this 2026 edition of India’s top solar EPC companies, we explore the leaders shaping the renewable energy landscape, from large-scale developers to specialized commercial EPC partners trusted by industries across the nation.
What Does a Solar EPC Company Do?
Before we dive into the list, let’s simplify what EPC really means.
A solar EPC (Engineering, Procurement, and Construction) company handles everything that turns a solar idea into a working project, from site assessment and design to material procurement, construction, and grid commissioning.
For businesses, choosing the right EPC partner ensures not just project completion but long-term performance, cost efficiency, and energy reliability.
Top 10 Solar EPC Companies in India (2026)
Here’s a look at the companies powering India’s clean energy growth this year.
1. Tata Power Solar
A pioneer in India’s solar industry, Tata Power Solar continues to lead large-scale and rooftop EPC projects nationwide. With its vast experience, advanced engineering, and strong financial base, it remains a key force driving India’s renewable transformation.
2. Infisol Energy
With over 10 years of experience, 500+ completed projects, and 125+ MW commissioned, Infisol Energy has become one of India’s trusted names in solar EPC.
We deliver turnkey solar solutions covering everything from design and engineering to installation and maintenance, ensuring consistent performance and reliability.
Our expertise extends across Commercial & Industrial Solar Installations, where we help businesses reduce power costs through customized, high-efficiency systems.
We also enable large consumers to access clean energy through Solar Open Access, offering flexible, off-site renewable power options.
And with our dedicated Solar Operations and Maintenance services, we ensure every project continues to perform at its best long after commissioning.
At Infisol, our focus remains simple, delivering solar projects that combine smart engineering, cost efficiency, and long-term value.
Explore our EPC projects and capabilities →
3. Waaree Energies
Waaree is one of India’s largest integrated solar companies, offering module manufacturing, EPC, and O&M services. Known for strong execution and reliable technology, it continues to drive large industrial and utility-scale installations.
4. Avaada Energy
Avaada’s focus on utility-scale solar and sustainability initiatives has made it one of India’s leading renewable developers. Their EPC expertise extends across major states and large corporate clients.
5. KPI Green Energy
KPI Green has carved a niche with its hybrid renewable approach, offering solar and wind solutions together. With growing presence in Gujarat and western India, it’s become a rising name among EPC providers.
6. Amplus Solar
Backed by Petronas, Amplus Solar specializes in commercial and industrial EPC projects. The company has executed installations for top corporates across India, with strong after-sales service and O&M capability.
7. Jakson Group
Jakson combines engineering excellence with EPC capability across solar, gensets, and hybrid systems. The company has contributed to both utility-scale and rooftop solar projects nationwide.
8. Rays Power Infra
One of India’s early EPC entrants, Rays Power Infra has successfully delivered large-scale ground-mounted projects and park developments. It continues to be a reliable EPC player for developers and investors.
9. Fourth Partner Energy
Fourth Partner Energy focuses on distributed solar and sustainability projects. Known for efficient rooftop and corporate installations, it’s expanding its footprint across industrial hubs.
10. RenewSys India
An integrated solar manufacturer and EPC service provider, RenewSys supports the solar ecosystem with modules, encapsulants, and reliable EPC solutions.
How to Choose the Right Solar EPC Partner
Selecting the right EPC partner can make or break your project’s success.
Here are four things we always recommend businesses consider before signing their EPC contract:
1. Experience and Capacity:
Look for companies with a proven portfolio of commercial or industrial projects, not just residential rooftops.
2. Turnkey Capabilities:
A true EPC partner should handle everything, from design and supply to execution and O&M, under one roof.
3. Technical Expertise:
Ensure they use reliable components, offer project warranties, and have qualified in-house engineers.
4. After-Sales Support:
Solar is a 25-year asset. Choose a partner who will stand by you for long-term maintenance, performance monitoring, and support.
At Infisol, these are not just recommendations; they define how we operate. Every project we deliver is backed by accountability, quality, and trust.
Why Infisol Energy Stands Out
Frequently Asked Questions
Which is the No.1 solar EPC company in India?
Tata Power Solar and Waaree Energies consistently rank among the top EPC companies in India for large-scale projects. However, for C&I and utility solutions, Infisol Energy has built strong nationwide credibility with turnkey EPC services and client-focused execution.
What does a solar EPC company do?
A solar EPC company manages the entire project lifecycle, engineering, procurement, and construction. They ensure your solar system is properly designed, installed, and connected to the grid, while maintaining performance guarantees.
How do I choose the right EPC partner?
Check for industry experience, technical credentials, project warranties, and after-sales support. Choose a partner that offers in-house engineering and proven execution, like Infisol Energy.
Why choose Infisol Energy as your EPC partner?
We bring over 10 years of hands-on EPC experience, 125+ MW of executed projects, and a client-first approach. Our team ensures every system we deliver performs optimally, maximizing ROI and reliability.
Powering India’s Solar Future
India’s solar EPC ecosystem is evolving rapidly, and the future looks bright.
From global giants to agile specialists like us, every EPC company is contributing to a cleaner, more sustainable tomorrow.
At Infisol Energy, we’re proud to be part of that story, building solar projects that don’t just generate power but also generate trust, growth, and impact.
If you’re planning to go solar in 2026, we’d be happy to help you make the switch with confidence.