India’s journey in the infrastructure and renewable energy sector is gaining speed, and the crucial pillar supporting this speedy growth is EPC contractors. EPC, or Engineering, Procurement, and Construction, is a turnkey system which ensures that heavy industry, infrastructure, and energy projects come to fruition smoothly.
From metro rails to industrial parks, data centres to renewable energy parks, leading EPC players in India are scripting the country’s growth story. In 2025, when India aims for net-zero emissions, EPC contractors are instrumental in constructing solar plants, wind farms, green hydrogen plants, and smart grids.
In this blog, we’ll explore the leading EPC solar companies in India, including Avaada, a pioneer in renewable EPC, and spotlight trends, capabilities, and factors to consider when choosing an EPC partner.
What Does an EPC Contractor Do?
An EPC contractor possesses the whole lifecycle of a project from original design and engineering to buying materials, construction, commissioning, and final handover. Such a turnkey service is particularly beneficial in complex infrastructure and energy projects where project schedule, quality, and cost control matter. EPC contractors deliver:
- Feasibility studies,
- Writing product specifications,
- Preparing Engineering designs,
- Project Monitoring Office,
- Equipment Procurement and Vendor Management
- Civil and structural construction works
- Mechanical and electrical installation works
- Quality Assurance
- Testing and commissioning, and final delivery
Why EPC Companies Matter in 2025
India is undergoing massive changes in the energy sector towards sustainable infrastructure. While investments are going through the roof in solar energy, wind power, battery storage, and green hydrogen, the need for renewable EPC contractors has never been more critical.
In areas like Solar power, Wind energy, Smart cities, Water treatment, Heavy industries and manufacturing, there is more demand than ever for experienced, technology-enabled EPC companies.
To learn more about Battery Energy Storage Systems, explore our blog on “The Important Checklist for Choosing the Top Solar EPC Company“
Top EPC Companies in India [2025 Update]
Here are some of India’s top EPC companies making headlines in 2025:
1 . Avaada Energy
Avaada is India’s fastest-growing renewable energy EPC player with a hallmark of solar, hybrid, and green hydrogen project excellence.
Why Avaada stands out:
- Over 5 GW+ of Installed Capacity
- Pan-India presence with Rajasthan, Gujarat, Maharashtra, Karnataka, UP and other operations
- Utility-scale solar, floating solar, and integrated renewable & storage project expertise
- The idea of sustainable development and ESG goals
Avaada’s EPC business is a cost-effective, scalable, and high-speed vertical, which is the energy customer’s go-to choice in both the public and private sectors.
2 . Larsen & Toubro (L&T)
One of India’s biggest and most diversified engineering, construction and procurement companies, L&T is active in various industries including power, heavy civil engineering, transportation infrastructure, and defence.
- Leadership position on a global scale
- Market leader in transmission and thermal EPC
- Foraying into renewable and green hydrogen opportunities
3 . Tata Projects
Tata Projects, part of the Tata Group, is another leading EPC contractor in India. It has delivered projects in urban infrastructure, rail, power, and water treatment.
- Growing fast, clean energy EPC portfolio
- The best-known in large public-private partnership contracts
- Trusted in government infrastructure projects
4 . Sterling and Wilson Renewable Energy
Founded as part of the Shapoorji Pallonji Group, Sterling and Wilson today is a top solar EPC company in the world.
- 25+ countries with projects
- Utility-scale focused EPC
- Solar + storage and hybrid energy EPC delivery
5 . Reliance New Energy Limited
As part of its green energy shift, Reliance has made significant investments in developing in-house EPC competencies to drive its solar, hydrogen, and storage ecosystem.
- Huge investment in Gigafactories
- Developing integrated solar PV manufacturing and BESS solutions
- Scale and automation-oriented EPC division
What to Look for in an EPC Contractor
While selecting an EPC contractor in India, particularly for energy or infrastructure, keep the following factors in mind:
- Track record of delivering projects
- Specialisation in the concerned domain (e.g., solar, wind, industrial)
- Good vendor and supply chain network
- Safety and environmental compliance
- Technology and innovation adoption
Firms like Avaada have set industry standards through their capability to provide end-to-end EPC solutions supported by sustainable values and global-class engineering
Why Avaada Leads the Way in 2025
While a host of EPC players dominate the Indian landscape, it is Avaada that stands out in terms of deep specialisation in clean energy and its ability to do integrated solar and hybrid EPC projects that align well with India’s vision of a green future. What makes Avaada a preferred EPC partner:
- In-house engineering expertise
- Track record of delivering projects on time
- Commitment to net-zero targets and sustainable development
- Foraying into green hydrogen and energy storage systems
For clients looking to develop utility-scale renewable energy projects, Avaada offers not just EPC execution but also strategic insights, policy alignment, and long-term O&M support.
Conclusion
In 2025, India’s growth depends heavily on infrastructure expansion and renewable energy deployment, and none of this is possible without the support of reliable, skilled EPC contractors.
Whether you’re developing a solar park, a smart factory, or a grid-scale battery storage, selecting the right EPC partner is the key to success.
