Top 20 Solar Companies In India (2026): Manufacturers, Installers & Listed Stocks

Solar Companies In India

India is making strides towards integrating clean energy, and an increasing number of residents and businesses are turning to solar power as their energy source. If you have an idea of going solar, you may be confused about which solar companies you can trust with you. Let’s say there are many solar companies that manufacture panels, there are many solar companies that install panels and there are also some that do both. This guide will enable you to understand the best solar companies and select your ideal solar company.

solar companies are on the rise more rapidly than ever in the year 2026. The Indian government has been promoting solar power through various initiatives, including the “PM Surya Ghar” scheme, which offers financial incentives to homeowners who install solar panels. This has led to the increased popularity and competitiveness of the solar companies. If you are thinking of installing solar panels for your home, business or a big factory, you have solar companies to help you out. The “Best Solar Companies In India” is a comprehensive guide that explains the various differences between them, provides price details and helps you choose the one that suits you. 

How This List Is Organized (Manufacturers vs Installers vs Listed Stocks)

Understanding Solar Panel Manufacturers

Solar Companies In India that produce panels are the factories that actually produce the solar panels. They create and manufacture the panels in their own plants and subsequently sell them to other businesses or directly to consumers. Manufacturers have concentrated on making high quality panels in large quantities. They have testing labs and quality control teams, as well as advanced machines to ensure that each panel functions as expected.

If it is a manufacturer, the best place to obtain the lowest price is to purchase in bulk amounts. These Solar companies of India not only produce but are also exporting their solar panels to other countries, indicating that they are up to international standards. They are certified with qualifications such as ALMM (Approved List of Models and Manufacturers) or ISO standard. For those looking to undertake a big project or purchase numerous panels simultaneously, the selection of a Solar Companies In India manufacturer is a worthwhile option. The manufacturers, however, typically do not install them, they sell them to the panel installers and contractors. 

Understanding Solar Installers and EPC companies

Installers are solar companies which are installing solar panels on your roof or in your yard. They plan, install and provide after sales support. Large solar companies are called EPC companies (Engineering, Procurement, Construction) that work on large commercial & utility scale projects. They plan the whole system, purchase the equipment and construct everything from scratch.

The only difference is that if you want solar installed on your home, you need solar installers. An EPC contractor is required if you are a factory or company who are looking for solar for a large building or farm. Local, speedy and knowledgeable installers from Solar companies India. They know how to use electricity, the rules of the game, the local climate and the local soil. You will have personal support and regular maintenance visits from an installer that you select. 

Understanding Listed Stock companies

A few Solar Companies In India traded on the stock exchanges (NSE or BSE). The result is that people just like you and me are able to purchase their shares and become a part-owner of the company. Generally, the listed solar companies are larger, more stable, have better disclosure requirements, and are more clear on their finances. They have routine reporting and adhere to government rules. Share buying in listed solar companies is one way to invest money in solar companies and promote the growth of solar.

Listed solar companies are more trustworthy as they are verified by government and financial experts. But, the ideal solar business for your house installation may not exist on the stock exchange.

Top 15 Solar Panel Manufacturers in India (2026)

Company NameFoundedManufacturing CapacitySpecialization
Waaree Energies Ltd199025.75 GWHigh-efficiency modules, bifacial technology
Adani Green Energy Ltd201520 GW+Mega-scale solar projects, battery storage
Vikram Solar Limited20064.5 GWPremium Tier-1 modules, exports
Premier Energies Limited19954 GWTOPCon cells, advanced technology
Goldi Solar Pvt Ltd20114 GWBifacial modules, micro rooftop systems
Rayzon Solar20164 GWMass-market utility modules
Tata Power Solar Systems Ltd19894.3 GWIntegrated solutions, residential & commercial
Saatvik Green Energy Pvt Ltd20153 GWHigh-efficiency Mono PERC, Northern India focus
RenewSys India Pvt Ltd20112.5 GWSolar components (EVA sheets, backsheets)
Insolation Energy Limited20151.2 GWTOPCon and bifacial panels, retail focused
Loom Solar Pvt Ltd2018Multi-MWResidential panels, e-commerce distribution
Jakson Group20161.2 GWBattery storage integration, microgrids
Fourth Partner Energy Pvt Ltd20101.5 GW+RESCO model, zero upfront investment
Sterling and Wilson Renewable Energy201115 GW+Utility EPC, structural racking systems
ReNew Energy Global PLC201110 GW+Wind-solar hybrid, utility-scale projects

Top 15 Solar Companies In India for 2026

1. Tata Power Solar Systems Ltd

Solar Companies In India - Tata Power Solar Systems Ltd

Tata Power Solar is among the most trustworthy solar companies. The company is backed by the Tata Group, and it has years of experience and a good reputation. Tata Power Solar has now installed thousands of solar homes and businesses in India. They design their own solar panels and they also install them, thus having quality control from conception to completion. The company is known for its excellent customer service and responsiveness to any issues after installation. 

Key Services:

  • Solar panel manufacturing and supply
  • Residential rooftop installation
  • Commercial and industrial solar solutions
  • EPC services for utility-scale projects
  • Battery storage systems integration
  • Operation and maintenance (O&M) services

Key Highlights:

  • 17.7 GW total renewable portfolio across India
  • 10 GW cumulative EPC execution completed
  • 1 GWp rooftop installation achieved in record time
  • ALMM approved and ISO certified
  • Strong after-sales support network

Why Choose: Best for families who want trusted service and long-term support.

Best For: Residential homes and large corporate buildings.

Website: https://www.tatapowersolar.com/ 

Address: Tata Power Solar Systems Ltd, Mahableshwar Road, Pune, Maharashtra 411001, India

Phone No: +91 20 6749 7000

2. Waaree Energies Ltd

Solar Companies In India - Waaree Energies Ltd

Waaree Energies is the top Indian solar panel player apart from China. Waaree is the largest Solar Company in India with an export of panels in 25 countries around the globe. This demonstrates that solar companies such as Waaree are of the highest quality in the world. The firm is spending enormous sums on new factories, fitted with the most modern machinery. Waaree panels are also proven to be durable and dependable. If you select Waaree from the solar companies, then you are getting panels that the entire world trusts.

Key Services:

  • Large-scale solar panel manufacturing
  • Export to 25+ countries
  • Battery storage container solutions
  • Utility-scale project supply
  • Technical consultation for large projects
  • Volume-based pricing for bulk orders

Key Highlights:

  • 25.75 GW aggregate global module capacity
  • 5.4 GW solar cell production capacity
  • BloombergNEF Tier 1 certified
  • ₹30,000 crore expansion program ongoing
  • One of India’s most bankable solar companies

Why Choose: Best if you want high-quality panels at good prices in bulk.

Best For: Large projects, installers, and bulk buyers.

Website: https://www.waaree.com/ 

Address: Waaree Energies Ltd, Pune, Maharashtra 411001, India

Phone No: +91 20 2716 9000

3. Adani Green Energy Ltd

Solar Companies In India - Adani Green Energy Ltd

Adani Green Energy is one of the giants among Solar Companies In India. It has developed gigantic solar power projects in India and is considered one of the top 6 solar power companies in the world. Adani Green Energy is not just about panels, it’s about solar power plants. They have installed over 20 GW of solar and installed 5 GW within one year. Adani is developing the biggest solar park in the world at Khavda in Gujarat. Analyse the size and scale of solar companies and you’ll find Adani on top. 

Key Services:

  • Mega-scale utility solar power plants
  • Solar panel manufacturing
  • Battery energy storage systems (BESS)
  • Green hydrogen projects
  • Complete renewable solutions integration
  • International renewable energy investments

Key Highlights:

  • 20 GW+ operational renewable capacity
  • World’s largest single location solar park in development (Khavda)
  • 4 GW cell and module manufacturing line
  • Top 6 global ranking by Wood Mackenzie
  • Integrated value chain from raw materials to finished products

Why Choose: Best for businesses needing huge solar solutions and long-term partnerships.

Best For: Large industries, factories, and mega solar farm projects.

Website: https://www.adanigreenenergy.com/ 

Address: Adani Green Energy Ltd, Ahmedabad, Gujarat 380015, India

Phone No: +91 79 4040 4040

4. Vikram Solar Limited

Solar Companies In India - Vikram Solar Limited

Vikram Solar is well known for its high quality and high purity solar panels globally. This Solar Companies In India has delivered its panels to 39 countries, which is a good indication of how good they are. Vikram is a Platinum Rated Company by EcoVadis for Sustainability, as they are concerned about the environment during the production of panels. Vikram is one of the solar companies that specializes in designing panels for efficient functioning in Indian hot and sunny climates. They have their panels tested in independent labs, and consistently achieve high reliability ratings in reliability reports. 

Key Services:

  • High-efficiency solar module manufacturing
  • Premium Mono PERC and N-type panels
  • Smart monitored solar solutions
  • Export to 39 countries
  • Institutional bulk supplies
  • Technical support and consultation

Key Highlights:

  • 4.5 GW solar PV module manufacturing capacity
  • BloombergNEF Tier 1 certified
  • EcoVadis Platinum Medal holder (top 1% globally)
  • PVEL Top Performer certification
  • Exports to 39 countries with high reliability ratings

Why Choose: Best if you want panels that will last 25+ years without problems.

Best For: Institutions, large solar parks, and quality-focused buyers.

Website: https://www.vikramsolar.com/ 

Address: Vikram Solar Limited, Kolkata, West Bengal 700091, India

Phone No: +91 33 4015 5555

5. ReNew Energy Global PLC

Solar Companies In India - ReNew Energy Global PLC

ReNew Energy is not like the majority of the Solar Companies In India. As opposed to the sales, ReNew constructs and operates solar power plants. They are the owners of plants, and sell the electricity generated to factories and companies. Ideal for businesses looking for clean energy without the equipment. ReNew Energy has 10 GW of solar and wind power plants running across India. They employ smart technology to monitor production output, or the power generated, by each plant throughout the day. The solar companies are relied on by big international companies and governments. 

Key Services:

  • Grid-scale solar and wind hybrid plants
  • Long-term power purchase agreements (PPAs)
  • Real-time plant monitoring systems
  • Battery storage integration
  • Corporate renewable energy solutions
  • Digital performance tracking

Key Highlights:

  • 10 GW+ operational utility asset portfolio
  • Wind-solar hybrid technology for stable power
  • ISO 9001 certified operations
  • Carbon Clean 200 member company
  • Global Compact signatory

Why Choose: Best for companies wanting clean power without investment costs.

Best For: Large factories, industries, and corporate buyers.

Website: https://renew.com/ 

Address: ReNew Energy Global PLC, Gurugram, Haryana 122001, India

Phone No: +91 124 4515 555

6. Premier Energies Limited

Solar Companies In India - Premier Energies Limited

Among solar companies, Premier Energies is at the forefront of developing cutting-edge solar cells. The company has devised a new type of solar cell known as TOPCon, which performs better even in hot and cloudy conditions, ideal for India. Premier Energies are selling these high-tech cells to other solar companies which assemble the cells into panels. These solar companies are making India self-reliant in solar technology instead of relying on imported technology. Premier is a back to back provider to other companies. 

Key Services:

  • Advanced TOPCon solar cell manufacturing
  • Mono PERC cell production
  • Domestic cell supply (Domestic Content Requirement)
  • High-tech cell architecture design
  • Supply to domestic panel manufacturers
  • Technology licensing

Key Highlights:

  • 4 GW high-tech integrated production capacity
  • Leader in N-Type TOPCon cell technology
  • ALMM and ISO certified
  • Supplier to major domestic solar companies
  • Growing structural demand from import restrictions

Why Choose: Best for supporting Make in India and advanced technology.

Best For: Other solar manufacturers and bulk cell buyers.

Website: https://www.premierenergies.com/ 

Address: Premier Energies Limited, Hyderabad, Telangana 500045, India

Phone No: +91 40 4040 7777

7. Sterling and Wilson Renewable Energy Ltd

Solar Companies In India - Sterling and Wilson Renewable Energy Ltd

Sterling and Wilson is a proponent of erecting very large solar power plants. This is not a Solar Panel Manufacturing Company or an Electricity Distribution Company like other solar companies. Rather, they plan and construct the structures and systems which support the solar panels. They deal with projects that have thousands of panels on many acres of land. Sterling and Wilson has developed over 15 GW of solar across the globe. This Solar Companies In India is experienced in providing services in hard-to-reach locations, coping with harsh weather conditions, and meeting government deadlines.

Key Services:

  • Solar project engineering and design
  • Construction and installation management
  • Structural racking system design
  • Solar tracking system installation
  • Complex project management
  • Global execution capability

Key Highlights:

  • 15 GW+ globally executed portfolio
  • Pure-play utility EPC contractor
  • ISO 9001/14001/45001 certified
  • British Safety Council Star Winner
  • Expertise in challenging geographies

Why Choose: Best for mega-projects needing expert engineering skills.

Best For: Government solar projects and large utility-scale installations.

Website: https://www.sterlingandwilsonre.com/ 

Address: Sterling and Wilson Renewable Energy Ltd, Mumbai, Maharashtra 400001, India

Phone No: +91 22 6164 6000

8. Goldi Solar Pvt Ltd

Solar Companies In India - Goldi Solar Pvt Ltd

Goldi Solar is a modern solar company with the robots to manufacture solar panels with perfection. The company has expanded rapidly in Gujarat and the Western part of India. Goldi also makes bifacial panels that can capture light from both sides (the front and back) of the panel, which are 25% more efficient. Goldi panels are an ideal solution for farms and large open areas. These solar companies also reach out to rural areas even in small towns and villages via its local distribution chain, ensuring that quality solar reaches everyone.

Key Services:

  • Bifacial solar module manufacturing
  • Automated production with robotics
  • Micro-rooftop system solutions
  • Tier-2 and small town distribution
  • Agricultural solar applications
  • Localized customer support

Key Highlights:

  • 4 GW module manufacturing capacity
  • Highly automated production lines
  • BloombergNEF Tier 1 certified
  • ALMM approved and BIS certified
  • Strong presence in Western India markets

Why Choose: Best for agricultural land and farms needing high efficiency.

Best For: Farm owners, large open spaces, and small town installations.

Website: https://goldisolar.com/ 

Address: Goldi Solar Pvt Ltd, Surat, Gujarat 395008, India

Phone No: +91 261 6668 888

9. Jakson Group

Solar Companies In India - Jakson Group

Jakson Group is one of the only Solar Companies In India that emphasizes on maintaining power supply even in the event of power failure. The company produces solar panels as well as develops battery storage systems that are interconnected. Ideal settings for hospitals, military installations and factory sites that can’t afford a power outage. Jakson is one of the top solar companies with a special focus on designing Microgrids which are small scale power systems that function without the main grid. They use solar in tandem with batteries to make up comprehensive backup power systems. 

Key Services:

  • Integrated solar + battery energy storage
  • Microgrid design and installation
  • Diesel-hybrid power solutions
  • Military and defense applications
  • Remote area electrification
  • Industrial backup power systems

Key Highlights:

  • 1.2 GW module manufacturing capacity
  • ALMM listed and ISO certified
  • Specializes in off-grid microgrids
  • Military and defense sector experience
  • Battery-solar integration expertise

Why Choose: Best if you need backup power and cannot afford electricity cuts.

Best For: Hospitals, military bases, factories, and remote areas.

Website: https://www.jakson.com/ 

Address: Jakson Group, Noida, Uttar Pradesh 201301, India

Phone No: +91 120 4564 444

10. Saatvik Green Energy Pvt Ltd

Solar Companies In India - Saatvik Green Energy Pvt Ltd

Saatvik Green Energy is a solar company with a special emphasis on the northern and central part of India. It has developed very rapidly through its commitment to quality and a constant improvement of technology. Saatvik’s panels are known for their resistance to extreme temperatures, making them suitable for India’s diverse climate. This Solar Companies In India has established factories close to its clients to provide fast and inexpensive delivery of the panels. Saatvik is gaining popularity with government projects and commercial buyers in their region. 

Key Services:

  • High-efficiency Mono PERC module production
  • TOPCon panel manufacturing
  • Half-cut solar technology
  • Localized supply chain delivery
  • Commercial and industrial solutions
  • Regional project implementation

Key Highlights:

  • 3 GW premium production capacity
  • ALMM and BIS certified
  • ISO 14001 environmental certification
  • Regional supply chain advantage
  • Focus on temperature-resistant panels

Why Choose: Best for quick delivery and weather-resistant panels in Northern India.

Best For: Commercial systems, government projects, and Northern India installations.

Website: https://saatvikgroup.com/ 

Address: Saatvik Green Energy Pvt Ltd, Ambala, Haryana 134003, India

Phone No: +91 171 4070 000

11. RenewSys India Pvt Ltd

Solar Companies In India - RenewSys India Pvt Ltd

RenewSys is a very different solar company as they do not produce complete solar panels. Instead, they make the smaller pieces which are put together in panels. They produce EVA sheets, backsheets, and other components which connect panels. This Solar Companies In India is significant because it contributes to the reduction of import reliance for solar material in India. RenewSys guarantees that Indian factories can continue to manufacture panels even if there is an issue with acquiring materials from other countries. They provide such materials to various other solar companies where panels are assembled. 

Key Services:

  • EVA encapsulant sheet manufacturing
  • Protective backsheet production
  • POE encapsulant materials
  • Solar component supply
  • International quality certification
  • Supply chain support for local manufacturers

Key Highlights:

  • 2.5 GW module assembly capacity
  • First integrated component manufacturer in India
  • UL and Intertek certified
  • IEC compliant products
  • Protects against supply chain disruptions

Why Choose: Best for supporting Make in India and solar component supply.

Best For: Solar manufacturers and component bulk buyers.

Website: https://www.renewsysworld.com/ 

Address: RenewSys India Pvt Ltd, Mumbai, Maharashtra 400001, India

Phone No: +91 22 6664 4444

12. Insolation Energy Limited (INA)

Solar Companies In India - Insolation Energy Limited (INA)

Insolation Energy is an one of the fastest growing solar companies and is traded in the stock market. The company produces state-of-the-art solar panels and also places them on rooftops. This insolation is reserved for the west side of the country and will be available for residential and small commercial customers. The strength in solar companies is their robust online selling platform. They sell directly to people by e-commerce and provide flexible payment options. Insolation offers excellent local teams to install and service in the region. 

Key Services:

  • Automated TOPCon and bifacial panel production
  • Residential rooftop installation
  • Commercial rooftop solutions
  • Glass-to-glass bifacial panels
  • Flexible EMI financing options
  • Quick installation services

Key Highlights:

  • 1.2 GW automated production capacity
  • ALMM and ISO certified
  • Publicly listed on stock market
  • Strong Western India presence
  • Fast-growing retail distribution

Why Choose: Best for easy financing and quick home installation.

Best For: Homeowners and small businesses wanting flexible payment plans.

Website: https://insolationenergy.in/ 

Address: Insolation Energy Limited, Jaipur, Rajasthan 302013, India

Phone No: +91 141 4070 777

13. Fourth Partner Energy Pvt Ltd

Solar Companies In India - Fourth Partner Energy Pvt Ltd

Fourth Partner Energy offers a unique model among solar companies. They install solar systems on your company’s roof, but you don’t pay anything upfront. Rather, they offer you the power generated at a lower cost for 20-25 years. This model is known as RESCO (Renewable Energy Service Company model). This is ideal for many businesses since they’re not purchasing any cash. With CRISIL ratings, independent experts have faith in the company’s long-term power contracting capabilities. This model has already been used by solar companies for hundreds of companies. 

Key Services:

  • RESCO model installation (zero upfront cost)
  • Long-term power purchase agreements
  • Commercial and industrial solar solutions
  • Roof-mounted system installation
  • Operation and maintenance services
  • Financial modeling for businesses

Key Highlights:

  • 1.5 GW+ commercial and industrial execution
  • RESCO/OPEX business model pioneer
  • CRISIL graded company
  • ISO 9001 and OHSAS certified
  • 20+ years of power agreements offered

Why Choose: Best for businesses wanting to save money without spending upfront.

Best For: Commercial companies, offices, and factories.

Website: https://www.fourthpartner.co/ 

Address: Fourth Partner Energy Pvt Ltd, Hyderabad, Telangana 500045, India

Phone No: +91 40 6666 7777

14. Rayzon Solar

Solar Companies In India - Rayzon Solar

Rayzon Solar is a young Solar Companies In India, rapidly established since 2016. The company specializes in the production of a multitude of solar panels for large-scale projects. Rayzon has set up modern factories in Gujarat with the latest machines and technology. The speed and affordability is what solar companies like Rayzon offer. They can come up with high wattage panels in no time and deliver them on time. Rayzon is preferred by large government projects and infrastructure developers that always deliver on schedule without any delays. 

Key Services:

  • High-wattage module manufacturing
  • Mono PERC and TOPCon production
  • Mass-market solar solutions
  • Large infrastructure project supply
  • Competitive pricing with quality
  • Timely bulk delivery

Key Highlights:

  • 4 GW automated manufacturing capacity
  • ALMM approved and ISO certified
  • TUV and CE certified
  • Aggressive expansion in Gujarat
  • Preferred supplier for public infrastructure

Why Choose: Best for large projects needing affordable panels and on-time delivery.

Best For: Government projects and large infrastructure developers.

Website: https://www.rayzonsolar.com/ 

Address: Rayzon Solar, Ahmedabad, Gujarat 380015, India

Phone No: +91 79 4040 5555

15. Loom Solar Pvt Ltd

Solar Companies In India - Loom Solar Pvt Ltd

Loom Solar is the latest solar company in this list, but they have altered the way common folks are purchasing solar panels. They developed India’s largest solar products e-commerce site. Instead of going to shops, you can now order solar panels online from Loom Solar and have them installed at home. These Solar Companies In India produce the best solar panels for small roof tops and Indian climatic conditions. Loom Solar provides flexible payment structures and also money back warranties. They bring your panels to your house and have technicians put them in. Loom Solar is making history as a pioneering Solar Company that is setting new benchmarks in terms of customer service and accessibility. 

Key Services:

  • Residential Mono-PERC panel manufacturing
  • E-commerce solar product sales
  • Doorstep delivery service
  • Professional rooftop installation
  • Hybrid energy systems integration
  • Flexible EMI financing

Key Highlights:

  • Multi-MW residential technology deployment
  • Largest e-commerce network for solar in India
  • ISO 9001:2015 certified
  • StartUp India recognized
  • Doorstep installation and support model

Why Choose: Best for convenient online ordering and flexible payment options.

Best For: Homeowners wanting easy online shopping and installation.

Website: https://www.loomsolar.com/ 

Address: Loom Solar Pvt Ltd, Faridabad, Haryana 121001, India

Phone No: +91 129 4040 444

Top Solar Installers and EPC companies for Rooftop & Commercial Projects

While looking for solar companies which install panels on houses, there are numerous options available. Ideally, it’s best to hire a local company that is familiar with the weather, building codes, and electrical codes of the area. These are a few of the key types: 

  • Local Rooftop Installers: Small to medium solar companies that deal with the domestic market, homes and small business. They have knowledge of the approvals of the local government, and are also able to manage paperwork for subsidies such as PM Surya Ghar.
  • State-Level installers: Many states have their own government-supported solar companies to install the rooftop installations. They are trained and certified to apply for subsidies.
  • EPC Contractors: In the case of commercial buildings, offices, and industries, big solar companies such as Tata Power, Sterling and Wilson, and ReNew are EPCs. They are involved in the entire design, supply and installation.
  • Solar companies: There are some solar companies who tie up with banks for solar loans, known as microfinance backed installers. They put in place systems and assist you in obtaining loans that have low interest rates.

Seek references from neighbors, inquire about their ALMM certification and get their support guarantees in writing. 

Top solar companies Listed on the Stock Market (NSE/BSE)

Company NameStock SymbolExchangeSectorMarket Cap (Approx)
Adani Green Energy LtdADANIGREENNSE/BSESolar & Renewables2,50,000+ Cr
Tata Power Company LtdTATAPOWERNSE/BSEPower & Solar1,20,000+ Cr
Vikram Solar LimitedVIKRAMSOLARNSESolar Manufacturing8,500+ Cr
Insolation Energy LimitedINSOLATIONNSESolar Manufacturing2,500+ Cr
ReNew Power Pvt Ltd*RENEWPOWERNSERenewable Energy95,000+ Cr
Waaree Energies Ltd*WAAREEENRNSESolar Manufacturing12,000+ Cr

In India, there are listed Solar companies which give an opportunity to invest money and own a small part of the company. Shareholders’ money is at stake when they purchase shares and will profit if the firm is successful. Investing in solar companies stocks is a method to assist the solar energy revolution, and it could probably be a rewarding investment. 

Solar Panel Price in India (2026) – What Affects Cost Per Watt

In India, the price of solar panels varies depending on the following factors: The knowledge of these will enable one to have the best price and quality.

Type of Solar Panel Technology

There are various types of solar panels being produced by various solar companies. Older technology, lower costs, and more common Mono PERC (Monocrystalline Passivated Emitter and Rear Cell) panels exist. The newer and superior panels are TOPCon (Tunnel Oxide Passivated Contact) panels which are more expensive. Bifacial panels are more costly than conventional panels, as they can capture sunlight from both sides. The price of the standard Mono PERC module from most solar companies is expected to be in the range of ₹30-50 per watt in 2026. Some premium panel manufacturers may offer panels at ₹55-70 per watt. 

System Size and Quantity

Larger systems are cheaper per watt as they are bought in bulk from solar companies, which offer the discount. A 1 kW home system might cost ₹80,000-1,00,000 (₹80-100 per watt). But a 10 kW system costs ₹7,00,000-8,50,000 (₹70-85 per watt). Thanks to bulk discounts, the cost of large commercial systems, with capacity of 100+ kW, is as low as ₹50-60 per watt from solar companies. 

Inverter Quality and Type

The inverter turns the direct current (DC) electricity generated by the panels into alternating current (AC) electricity used by the house. String inverters are more affordable, and suitable for most houses. Hybrid Inverters have higher battery storage and incur higher costs. Microinverters work on each panel individually and are most expensive. String inverters cost ₹15,000-25,000. Hybrid inverters cost ₹40,000-80,000. Quality brands are more expensive than unknown brands, but many solar companies specify quality inverters for their long life. 

Mounting and Installation Labor

The metal framework which supports the panels is expensive. The least costly method of mounting is on a roof. It is more expensive to install the unit in the ground. If the roof surface is a complex type (curved roofs, old buildings etc.), it will incur extra labor. The installation labor cost range varies from most solar companies with a minimum of ₹5-10 per watt. Professional installation will increase the costs by 15-20% and will guarantee the system to be working perfectly for the next 25 years. 

Brand and Warranty Period

solar companies, such as Tata Power, Waaree, and Vikram Solar, sell their brand products at 10-20% higher price than unknown brands. However, they provide warranties of up to 25-30 years, whereas small solar companies might provide only 10-15 years warranties. The actual cost per year of usage of the quality panels from known solar companies is less over the life of the system. 

Location and Transportation

solar companies near you would be cheaper as the transport costs will be lesser. In the case of Mumbai to Gujarat, one can expect transport costs to be lower than that from Delhi to Gujarat, when the order is placed with a Mumbai company. Local installers also save you money as you will not be required to travel long distances. Hence many solar companies established their regional distribution networks. 

How to Choose the Right Solar Company for Your Home or Business

The choice of solar companies is the most crucial decision. The steps for doing it are:

Understand What You Actually Need

Prior to calling any solar companies, give some thought to what you want. Is it necessary to have a home rooftop system? A business building installation? Then perhaps simply purchasing panels by the bulk? There are certain areas that different solar companies have their expertise in. If you only need home installation, then do not call an EPC contractor. That’s a time saver for everyone and will help you obtain improved quotes. 

Verify ALMM Certification and Certifications

Before buying a solar panel, it is important to keep an eye out for the solar companies that appear in the ALMM (Approved List of Models and Manufacturers). In order to receive back the subsidy money of PM Surya Ghar. Look for ISO 9001 (quality), ISO 14001 (environmental care) and BIS certifications as well. No solar companies can do without such certifications. Indian certified solar companies have standards and will not vanish after laying your hard-earned money to waste. 

Ask for References and Local Projects

Ask 3-5 pictures and addresses about the projects undertaken by solar companies in your locality or nearby area. Contact and follow up with these customers; find out what their experience was. Was the job completed within the required time frame? Do the panels function properly? Does the company assist in maintaining? This is a real deal with actual customers as opposed to what solar companies advertise. 

Compare Warranty, Not Just Price

There are lots of solar companies, who give cheap price but inadequate warranty. Inquire about the 25-year warranty on the panel, 5-10-year warranty on inverter and 1-5 year warranty for labor/installation. Tata, Waaree, and Vikram are a few good solar companies that provide a warranty of 25 years or more on their solar panels. Small solar companies that provide 10-year warranties may be cheaper initially but may be a risk for you in the event of a panel failure in the future. 

Check Subsidy and Approval History

If you are eligible for PM Surya Ghar subsidy, choose solar companies which have been of support to a lot of individuals to avail subsidy money. Inquire about the number of applications for subsidy they have received and the percentage successful. solar companies with experience, address paperwork easily and quickly. They also know the local rules of DISCOM ( electricity board) and approvals are faster. 

Get Detailed Written Estimates

When contacting any solar companies, request a comprehensive, written quote (actual amount) including: panel costs per watt, inverter cost, installation labor cost, total system cost, warranties, and maintenance fees. Do not take quotes that are merely ₹2 lakh without any breakdown. When it comes to solar companies quotes, you can compare quotes in detail and find out all the costs involved. 

Conclusion

If you have the right knowledge, you can easily select the solar companies. This Guide has provided you with all options whether you’re looking for a home roof-top system or perhaps a commercial installation, or you’re looking at putting money into solar company shares. The solar companies have seen a huge surge in 2026. The prices of technology are getting lower, and quality is improving, and the subsidies from the government make solar affordable for all. This is good for the customers as they are being given competition by the large solar companies like Tata, Waaree, and Adani, which are also local companies.

If you are a homeowner, choose local installers with good reviews, strong warranties and certified by ALMM. For business owners, hire EPC service providers from solar companies having experience of handling large projects. As an investor, you may want to invest in listed solar companies such as Solar Edge or Solar Auto Limited. Now is the best time to go solar! Making the transition to clean energy is easier than ever with the help of thousands of solar companies, dropping panel prices and PM Surya Ghar subsidy.

When it comes to solar companies just remember to rely on the right ones with proper certificates, references, and warranties. Don’t take the lowest priced seat and then be disappointed with the quality. Your solar panels will serve you for 25 years, so ensure that you select solar companies which you can trust. 

FAQs

Which is the best solar company in India?

There isn’t any one “best Solar Companies In India”, as it relies on the requirements of the individual. Tata Power Solar and Loom Solar are great options for homeowners. Adani Green energy and the Waaree are the best options for large projects. Vikram Solar and Premier Energies are the top brands for high-quality products. Check ALMM certification and local references before making a decision.

Who are the Top 10 Solar companies?

The top 10 Solar companies by manufacturing capacity in India are: Waaree Energies, Adani Green Energy, Rayzon Solar, Tata Power Solar, Vikram Solar, Premier Energies, Goldi Solar, Saatvik Green Energy, Insolation Energy and RenewSys India. These are the biggest factories, and best certified solar companies.

What are the solar companies that have shares in the stock market?

Adani Green Energy, Tata Power Company, Vikram Solar, Insolation Energy, and ReNew Power are a few companies that are listed on NSE/BSE. These Solar companies stocks can be purchased from any stock broker in India. Waaree Energies are also on the verge of being listed.

How much does a solar panel cost in India in 2026?

The price of solar panels offered by solar companies varies from ₹30 to ₹70 per watt, depending on the solar cell technology and its brand. A typical 5 kW home system costs ₹3,50,000-5,00,000. You can get a lower cost with PM Surya Ghar subsidy up to ₹78,000. Solar companies produce premium panels which are expensive, but have a longer life.

What solar company has the best warranty?

A typical Solar Company in India such as Tata Power, Waaree Solar, Vikram Solar and Premier Energies guarantees 25-30 years for the solar panels and 10+ years for the inverter. There are also good warranties available for Loom Solar and Insolation Energy with online tracking. Ensure warranty is obtained in writing prior to installation.

What is the market price of the Tata Power Solar share?

Tata Power Company Limited is publicly listed on NSE/BSE (symbol: TATAPOWER). It has a wholly-owned subsidiary called Tata Power Solar Systems Ltd, under the solar business. Tata Power shares can be purchased from any stock broker.

What is the difference between an installer and a manufacturer?

solar companies can be manufacturers but they may not install panels. Installers put panels on roofs but may not make them. For domestic systems, select local certification for installers. In the case of big projects, opt for solar companies that are well reputed for their EPC services. Many companies such as Tata Power sell and install.

Do government solar subsidy schemes exist in 2026?

Yes, PM Surya Ghar Yojana 2026 is available and offers financial assistance of Rs. 30,000 to 78,000 for various size systems. They are only eligible for the ALMM from a Solar Company in India certified by the Solar Alliance. The solar companies can assist you in filling out the application. Subsidy will be credited to your bank account once you have been inspected and approved by DISCOM. 

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