Comparing the Top 10 Solar EPC Companies in India for 2026
- 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.
If you are looking for a reliable Solar EPC Company in India to handle your project end-to-end, Infisol Energy offers turnkey 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
Choosing the right EPC partner is not just about panels and inverters, it is about having a team that understands your business, your sites, and the pressure on your P&L. Infisol Energy focuses on helping commercial, industrial, and institutional clients turn complex solar projects into predictable, long‑term assets.
1. Deep C&I and utility experience
Infisol brings over 10+ years of hands‑on experience delivering rooftop and ground‑mount solar plants for factories, warehouses, schools, hospitals, commercial buildings, and utility‑scale projects across India. Our team has successfully executed 500+ completed projects and 125+ MW of commissioned capacity with strong performance ratios and on‑time handovers.
2. True turnkey solar EPC partner
From site survey and feasibility study to detailed engineering, procurement, construction, and lifecycle O&M, Infisol works as a single turnkey solar EPC partner. Clients get one team responsible for design optimisation, quality control, safety compliance, and coordination with DISCOMs and local authorities, which reduces delays and hidden costs.
3. Focus on performance and reliability
Every design is optimised for energy yield, shadow analysis, and actual load patterns rather than just installed capacity on paper. Infisol uses tier‑1 solar modules, trusted inverter brands, and proven mounting structures, backed by robust testing and quality checks at every stage of execution. This approach helps maximise uptime, cut maintenance issues, and deliver higher lifetime returns from each plant.
4. Strong after‑sales and O&M support
Infisol’s dedicated Operations and Maintenance team offers regular inspections, performance monitoring, cleaning schedules, and rapid fault‑response support. With clear SLAs and remote monitoring, businesses get complete visibility into their plant’s performance and the confidence that someone is actively protecting their solar investment.
5. Flexible models for growing businesses
Whether it is a CAPEX project, RESCO / PPA model, or open access and group captive structures, Infisol helps design the right commercial model for each site and organisation. This flexibility allows companies to start with minimal upfront investment, lock in predictable energy costs, and plan future expansions as their power demand grows.
Frequently Asked Questions
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.
What is the difference between Solar EPC and a solar installer?
While an installer might just put panels on a roof, a Solar EPC company manages the entire engineering, procurement, and construction process, ensuring a turnkey solution for complex industrial and commercial projects.
What are the latest Solar EPC trends in India for 2026?
Key trends include the rise of high-efficiency TopCon modules, the integration of battery storage (BESS) into EPC contracts, and a heavy focus on government-backed schemes like PM Kusum and Solar Open Access.
What is the average timeline for a Solar EPC project in India?
A typical commercial EPC project can take anywhere from 3 to 6 months, depending on site size, regulatory approvals (CEIG), and DISCOM connectivity timelines.
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.