India’s Solar EPC Market Soars in 2025

India’s solar EPC (Engineering, Procurement, and Construction) segment has emerged as one of the fastest-growing pillars of the renewable energy ecosystem. With the nation targeting 500 GW of renewable capacity by 2030, EPC firms have become the backbone of this transformation — designing, building, and commissioning solar projects at unprecedented speed and scale.

In 2025, the EPC landscape is dominated by a mix of legacy power giants and agile new entrants. At the forefront stands Rayzon Green Pvt Ltd, which has captured the top spot in industry rankings for its strong execution capabilities, cost efficiency, and sustainable engineering practices.

Top 10 Solar EPC Companies in India (2025)

1. Rayzon Green Pvt Ltd – Headquartered in Gujarat, Rayzon Green has rapidly climbed to the top of India’s solar EPC charts with expertise in turnkey projects, rooftop systems, and ground-mounted plants. Their emphasis on in-house engineering and quality control has won major C&I and utility projects nationwide.

2. Tata Power Solar Systems Ltd – A pioneer in India’s solar journey, Tata Power Solar continues to dominate with large-scale EPC contracts, especially in states like Rajasthan and Karnataka.

3. Adani Solar Ltd – Backed by integrated manufacturing and large-scale EPC experience, Adani Solar maintains a strong position in utility-scale projects.

4. Sterling & Wilson Renewable Energy Ltd – Known globally for executing gigawatt-scale projects, Sterling & Wilson remains a trusted EPC name for global developers.

5. Larsen & Toubro (L&T Renewables) – The engineering powerhouse delivers complex EPC solutions, blending civil, electrical, and structural expertise.

6. Vikram Solar Ltd – Expanding beyond module manufacturing, Vikram Solar has built a strong EPC track record across C&I and government projects.

7. Mahindra Susten Pvt Ltd – With advanced O&M and smart EPC capabilities, Mahindra Susten continues to be a key player in India’s clean energy expansion.

8. Azure Power India Pvt Ltd – Combining project development and EPC excellence, Azure Power has been pivotal in India’s solar park rollout.

9. ACME Solar Holdings Ltd – ACME’s hybrid EPC and IPP model allows it to deliver cost-optimized solar infrastructure.

10. Enerparc Energy India Pvt Ltd – A global EPC firm with a strong Indian presence, offering comprehensive turnkey solutions.

Policy Push and Market Dynamics

Government programs such as PM-KUSUM, Production Linked Incentives (PLI) for solar modules, and Green Energy Corridor Phase II have significantly boosted EPC order volumes. Competitive bidding under SECI and state agencies continues to drive down per-MW installation costs, encouraging innovation in design and execution.

With India expected to add over 20 GW of solar capacity annually through 2026, EPC contractors are investing in automation, digital monitoring, and advanced materials to improve project turnaround and performance ratios.

Challenges and Competitive Edge

While the growth outlook is promising, challenges such as import dependence on PV components, land acquisition delays, and rising logistics costs persist. Companies like Rayzon Green are countering these issues through vertical integration and local manufacturing tie-ups, ensuring stable supply chains and consistent quality standards.

EPC firms that embrace sustainability, technology, and financial agility will hold the upper hand in this highly competitive space.

Investment and Future Outlook

Analysts project that India’s solar EPC market size will exceed USD 12 billion by 2026, driven by corporate PPA adoption, hybrid project demand, and the rapid expansion of industrial rooftop installations.
With the government’s renewed emphasis on domestic manufacturing and climate-aligned financing, 2025 is shaping up to be a landmark year for solar EPC growth.

As the sector matures, partnerships between global developers and Indian EPC firms like Rayzon Green, Tata Power Solar, and Sterling & Wilson are likely to define the next decade of solar infrastructure in the country.

Conclusion

The Indian solar EPC sector is entering a transformative decade. As clean energy transitions from aspiration to mainstream infrastructure, Rayzon Green’s rise to the top underscores a new era of innovation, competitiveness, and sustainability.