Top 10 Rooftop Solar Companies in India 2026

India's solar industry has expanded significantly in recent years, and rooftop solar is becoming an important part of this growth. Homes, factories, offices, warehouses, schools, hospitals and commercial buildings are increasingly using their available roof space to generate electricity from sunlight.

This growth has also led to more rooftop solar companies in India, offering everything from solar panels and inverters to complete engineering, procurement and installation services.

However, not every solar company offers the same products or services. Some focus on manufacturing solar modules, some specialise in rooftop EPC projects, while others provide complete solar solutions.

If you are planning a rooftop solar project in 2026, understanding the major solar companies in India can help you compare their products, technologies and capabilities before making a decision.

What Do Rooftop Solar Companies Do?

Rooftop solar companies help customers design, supply and install solar power systems on building rooftops.

Depending on the company, services can include:

• Solar panel manufacturing
• Rooftop solar system design
• Site assessment
• Engineering and procurement
• Solar panel installation
• Inverter and electrical equipment supply
• System commissioning
• Operation and maintenance
• After-sales support

Some companies provide complete turnkey solutions, while others primarily manufacture solar modules and supply them to EPC companies, distributors and project developers.

Top 10 Rooftop Solar Companies in India

India has several established companies operating across solar manufacturing, rooftop installation and EPC services. Here are 10 companies worth knowing when researching the Indian rooftop solar market.

1. Tata Power Solar

Tata Power Solar is one of the recognised names in India's solar industry. The company operates across solar manufacturing and project development and has experience in rooftop as well as large-scale solar projects.

Its rooftop solar business serves different customer segments, including residential, commercial and industrial users.

With its established presence in the renewable energy sector, Tata Power Solar is often considered by customers looking for an experienced solar solution provider.

2. Adani Solar

Adani Solar is part of the Adani Group and operates in the solar manufacturing sector.

The company is involved in the production of solar PV modules and supports large-scale renewable energy projects.

Its presence in solar manufacturing and the broader renewable energy sector makes it one of the prominent names to consider when researching solar companies operating in India.

3. Waaree Energies

Waaree Energies is an Indian solar manufacturer and renewable energy company with operations covering solar module manufacturing and project-related services.

The company offers multiple solar module technologies and serves residential, commercial, industrial and utility-scale applications.

Its manufacturing capabilities and presence across different parts of the solar value chain have made Waaree one of the well-known names among solar companies in India.

4. Bluebird Solar

Bluebird Solar is an Indian solar company focused on solar module manufacturing and solar solutions for different project requirements.

The company manufactures solar modules using technologies including N-Type TOPCon and Mono PERC, with options such as bifacial and dual-glass configurations.

Bluebird Solar offers high-wattage modules including 600Wp TOPCon bifacial solar panels and 630Wp N-Type TOPCon bifacial solar panels, which can be suitable for rooftop projects where higher power output per module is preferred.

The company operates a 2.5 GW fully automated solar module manufacturing facility and supplies solar modules for residential, commercial, industrial and other applications.

For rooftop projects, module selection can be based on available roof area, required system capacity, module efficiency, electrical specifications and project design.

5. Vikram Solar

Vikram Solar is an established Indian solar module manufacturer with a focus on photovoltaic module production and solar project solutions.

The company supplies solar modules for various applications, including rooftop, commercial and utility-scale projects.

Its product portfolio includes different module technologies designed to meet the requirements of different solar installations.

6. RenewSys India

RenewSys is an Indian renewable energy manufacturer known for solar PV modules as well as key components used in module manufacturing.

The company's portfolio includes solar modules and materials such as encapsulants and backsheets.

Its presence across different parts of the solar manufacturing value chain makes RenewSys an important company in India's solar ecosystem.

7. Jakson Solar

Jakson Solar is part of the Jakson Group and operates across solar manufacturing, EPC and renewable energy solutions.

The company works on different types of solar projects, including rooftop and large-scale installations.

Its presence across manufacturing and project execution allows it to serve customers looking for solar solutions at different project scales.

8. Loom Solar

Loom Solar is an Indian solar company with a strong focus on residential and small-scale solar applications.

The company offers solar panels, inverters and other products used in rooftop solar systems.

Its product range is aimed particularly at homeowners and smaller businesses looking for solar power solutions for their properties.

9. Goldi Solar

Goldi Solar is an Indian solar module manufacturer involved in the production and supply of photovoltaic modules.

The company offers solar modules for different applications and has expanded its manufacturing presence as India's demand for solar products continues to increase.

Goldi Solar serves different segments of the solar market, including rooftop and larger solar projects.

10. Rayzon Solar

Rayzon Solar is an Indian solar module manufacturer operating in the photovoltaic sector.

The company produces solar modules for residential, commercial and utility-scale applications and has been expanding its manufacturing capabilities to meet the growing demand for solar energy.

Its product portfolio includes modern module technologies designed for different solar project requirements.

What Makes a Good Rooftop Solar Company?

Choosing between different rooftop solar companies in India requires more than comparing the price of solar panels.

Here are some important factors to consider.

Solar Module Technology

Solar technology has evolved considerably. N-Type TOPCon, Mono PERC and bifacial modules are among the technologies available today.

For rooftops with limited space, high-efficiency and high-wattage modules can help achieve the required capacity using fewer panels.

Manufacturing Capability

For larger projects, manufacturing capacity can be an important consideration. A company with automated production and established quality-control processes may be better positioned to handle consistent, large-volume module requirements.

Certifications and Testing

Solar modules should meet the applicable standards and certification requirements for their intended market and application.

Buyers should check the relevant certifications, technical specifications and test documentation before selecting a module supplier.

Warranty

Solar panels are designed for long-term operation, so warranty terms deserve careful attention.

Compare both the product warranty and performance warranty, and understand what each warranty covers.

Project Experience

A rooftop solar installation involves more than installing panels.

The project may require structural assessment, electrical design, shadow analysis, inverter sizing, cable planning and proper commissioning.

For commercial and industrial installations, experience with similar projects can be particularly useful.

After-Sales Support

Solar systems are long-term investments. Technical support and warranty assistance can become important after installation.

Before choosing a company, customers should understand how service requests, maintenance and warranty claims are handled.

Solar Manufacturer or Rooftop Solar EPC Company?

This is an important difference when comparing solar companies.

A solar manufacturer primarily produces solar modules and focuses on cell technology, module construction, manufacturing quality and product performance.

A rooftop solar EPC company generally handles the project execution side, including:

• Site survey
• System design
• Engineering
• Procurement
• Installation
• Electrical work
• Commissioning
• Maintenance

Some companies operate in both areas, while others specialise in manufacturing or EPC services.

Therefore, customers should first determine whether they need solar modules only or a complete rooftop solar system.

Types of Rooftop Solar Systems

The three common types of rooftop solar systems are on-grid, off-grid and hybrid.

On-Grid Solar System

An on-grid system is connected to the electricity grid. Solar energy generated during the day can be used by the building, with surplus electricity handled according to the applicable grid and metering arrangement.

Off-Grid Solar System

An off-grid system operates independently of the electricity grid and normally uses batteries to store energy for use when solar generation is unavailable.

Hybrid Solar System

A hybrid system combines solar generation, battery storage and grid connectivity. It can be useful where both grid-connected operation and backup power are required.

The right option depends on electricity consumption, grid availability, backup requirements, roof area and budget.

Why High-Wattage Solar Panels Are Useful for Rooftops

Available roof area is one of the most important limitations in a rooftop solar project.

High-wattage modules can generate more rated power from each panel. For example, 600Wp and 630Wp modules can help achieve a specific system capacity with fewer panels compared with lower-wattage modules.

However, wattage should not be the only factor used for comparison.

Module dimensions, efficiency, weight, electrical characteristics, roof layout, inverter compatibility and structural requirements should also be evaluated.

How to Choose the Right Solar Company in India

Before selecting a solar company, consider the following:

1. Define your requirement: Decide whether you need solar panels only or a complete rooftop system.
2. Check the module specifications: Compare efficiency, wattage, technology and construction.
3. Review certifications: Verify the applicable certifications and technical documentation.
4. Compare warranties: Look at product and performance warranty terms.
5. Check installation experience: This is especially important for commercial and industrial projects.
6. Compare the complete cost: Consider equipment, installation, electrical work and maintenance rather than only the panel price.
7. Consider after-sales service: A long-term support system can be valuable throughout the life of the installation.

Future of Rooftop Solar in India

The rooftop solar market is expected to continue developing as solar technology becomes more efficient and consumers become more aware of renewable energy.

Solar manufacturers are increasingly focusing on technologies such as N-Type TOPCon, bifacial modules, larger wafer formats and higher-wattage panels.

At the same time, rooftop solar companies are improving system design, installation practices and monitoring solutions.

For businesses and property owners, this means there are more options available for designing a solar system according to their electricity consumption and available roof area.

Conclusion

The growing adoption of rooftop solar has created a competitive market for rooftop solar companies in India. From large renewable energy groups and solar manufacturers to specialised rooftop EPC companies, customers now have several options to choose from.

Tata Power Solar, Waaree Energies, Vikram Solar, Adani Solar, RenewSys, Bluebird Solar, Jakson Solar, Loom Solar, Goldi Solar and Rayzon Solar are among the companies that can be considered when researching the Indian solar market.

However, the best solar company for a particular project depends on its requirements. Module technology, manufacturing quality, certifications, warranty, installation experience, project cost and after-sales support should all be evaluated before making a decision.

For customers specifically looking for Indian-made high-wattage solar modules, Bluebird Solar's range of N-Type TOPCon and bifacial modules provides options for rooftop, commercial, industrial and other solar applications.

Frequently Asked Questions

Which are the top rooftop solar companies in India?

Some well-known companies in India's solar market include Tata Power Solar, Adani Solar, Bluebird Solar, Waaree Energies, Vikram Solar, RenewSys, Jakson Solar, Loom Solar, Goldi Solar and Rayzon Solar.

Which company is best for rooftop solar?

The right company depends on the project's size, location, budget, required technology and whether you need solar panels or a complete EPC solution. Comparing product quality, warranty, installation capability and after-sales service can help in making the right choice.

What should I check before buying solar panels?

Check the panel's technology, wattage, efficiency, certifications, warranty, degradation specifications and manufacturer's quality standards.

Are TOPCon solar panels suitable for rooftop installations?

Yes. N-Type TOPCon modules can be suitable for rooftop projects, particularly where high efficiency and higher power output are important and roof space is limited.

Is Bluebird Solar a solar panel manufacturer in India?

Yes. Bluebird Solar manufactures solar modules in India, including N-Type TOPCon and Mono PERC modules, with product options such as bifacial and dual-glass configurations.

What is the difference between rooftop solar and ground-mounted solar?

Rooftop solar systems are installed on building roofs, while ground-mounted systems are installed on land using dedicated mounting structures. Rooftop systems make use of existing roof space, whereas ground-mounted projects generally require a suitable land area.

Are rooftop solar systems suitable for factories?

Yes. Factories and warehouses can be suitable for rooftop solar because they often have large roof areas and significant daytime electricity consumption. A structural and technical assessment should be carried out before installation.