Mayank Singh India's rooftop solar market is expanding as households, businesses and institutions look for ways to reduce their dependence on grid electricity and adopt renewable energy. Government programmes such as PM Surya Ghar: Muft Bijli Yojana have also increased awareness of residential rooftop solar and created opportunities for businesses involved in system design, installation and maintenance.
According to the Ministry of New and Renewable Energy (MNRE), India's cumulative grid-connected rooftop solar capacity reached 30.11 GW as of 30 June 2026. This provides a substantial and growing market for installers, equipment suppliers, electricians and solar service companies. (Source: MNRE – Physical Progress.)
If you are considering entering this sector, this guide explains how to start a solar panel installation business in India in 2026, including business registration, vendor requirements, equipment sourcing, staffing, customer acquisition and basic project-cost planning.
1. Understand the Rooftop Solar Market
A solar installation company can work with several types of customers, including:
- Individual homeowners
- Housing societies and apartments
- Shops and commercial buildings
- Schools and educational institutions
- Hospitals and clinics
- Factories and warehouses
- Hotels and other hospitality businesses
Residential rooftop solar has received additional attention because of PM Surya Ghar: Muft Bijli Yojana. The scheme aims to support rooftop solar installations across one crore residential households by FY 2026–27. Eligible residential consumers can apply through the National Portal and select a registered vendor for installation.
Instead of assuming that every area will produce the same demand, research your local market. Electricity tariffs, rooftop availability, DISCOM procedures, competition, customer income levels and awareness of solar can all affect demand.
2. Choose the Right Business Structure
You do not necessarily have to form a Private Limited Company to start providing solar installation services. Depending on your scale and plans, your business may operate as a:
- Sole proprietorship
- Partnership firm
- Limited Liability Partnership (LLP)
- Private Limited Company
A small local installer may begin with a simpler structure, while a company planning to raise investment, work on larger projects or expand across several regions may prefer an LLP or Private Limited structure.
GST Registration
GST registration should be taken when your business becomes liable under applicable GST rules or where voluntary registration makes commercial sense. The requirement depends on factors such as turnover, type of supply and other provisions of GST law, so it is better to confirm your particular situation with a chartered accountant or tax professional rather than assuming that every new solar installer must immediately obtain GST registration. (Source: CBIC GST registration guidance.)
Udyam Registration
If your business qualifies as an MSME, you can also consider Udyam registration. Keep business, banking, tax and purchase records organised from the beginning, particularly if you intend to apply for business finance or participate in institutional projects.
3. Check State Electrical Licensing Requirements
Solar installations involve DC electrical systems, inverters, AC connections, earthing, protection devices and grid connectivity. Electrical contractor, supervisor and electrician licensing requirements can vary between states.
Before accepting projects, check the requirements of your state's electrical licensing authority and the relevant DISCOM. Do not assume that a single licence or procedure applies throughout India.
For grid-connected installations, your team should also understand:
- Net-metering or applicable metering procedures
- System protection requirements
- Earthing and electrical safety
- DISCOM inspection requirements
- Sanctioned load and connectivity rules
- Required drawings and technical documentation
4. Register as a Vendor if You Want to Work Under PM Surya Ghar
If your target market includes residential customers seeking Central Financial Assistance under PM Surya Ghar, understand the vendor-registration process on the scheme's official portal.
The PM Surya Ghar platform provides a dedicated vendor-registration system, while residential consumers can select vendors through the National Portal. Requirements and procedures should always be checked on the official portal because scheme and DISCOM processes can change.
Under the scheme, the central subsidy currently corresponds to:
- 1 kW system: ₹30,000
- 2 kW system: ₹60,000
- 3 kW or higher: Maximum ₹78,000
These amounts apply to eligible residential rooftop solar installations subject to scheme conditions. Commercial and industrial installations should not be marketed as eligible for the same residential subsidy. (Source: Ministry of New and Renewable Energy / Press Information Bureau.)
5. Source Solar Panels and Other Equipment Carefully
Your installation quality depends on more than the solar panel itself. A typical grid-connected rooftop system may require:
- Solar PV modules
- Solar inverter
- Module mounting structure
- DC and AC cables
- DC and AC distribution boxes
- Earthing equipment
- Lightning and surge protection where required
- Connectors and cable-management accessories
- Net meter or other metering equipment as applicable
Rather than relying purely on marketing terms such as "Tier-1", compare equipment based on technical specifications, warranties, certifications, after-sales support and compliance with applicable MNRE, BIS and DISCOM requirements.
For projects where the Approved List of Models and Manufacturers (ALMM) requirements apply, check the latest MNRE ALMM list before procuring modules. MNRE continues to update these lists, so a brand or model that was previously available should not automatically be assumed to meet the latest requirements.
6. Build a Practical Installation Team
You do not need a large workforce on your first day. A small solar installation company can begin with a combination of permanent employees and qualified project-based technicians.
Typical roles include:
- Site Surveyor: Measures usable rooftop area, checks shade and understands electricity consumption.
- Solar Designer/Engineer: Determines system size, layout and basic electrical design.
- Qualified Electrician: Handles electrical connections, protection systems and testing.
- Installation Technician: Installs mounting structures and solar modules.
- Sales or Customer Coordinator: Handles enquiries, quotations, documentation and follow-ups.
For smaller companies, one employee may initially perform more than one role, provided safety and licensing requirements are properly followed.
7. Create a Standard Site-Survey Process
Do not provide customers with a final quote based only on their electricity bill. Conduct a site survey before confirming the system design.
Your survey should check:
- Available shadow-free rooftop space
- Roof type and structural condition
- Customer's electricity consumption
- Sanctioned electrical load
- Meter and connection type
- Possible inverter location
- Distance between panels, inverter and electrical panel
- Earthing requirements
- Access for installation and future maintenance
Keep photographs and measurements for every site. This reduces mistakes during design, procurement and installation.
8. Prepare Transparent Customer Quotations
A professional solar quotation should clearly explain what the customer is paying for rather than providing only one total amount.
Include:
- System capacity in kW
- Panel manufacturer and model
- Number and wattage of modules
- Inverter make and capacity
- Mounting structure
- Electrical protection equipment
- Installation charges
- Warranty details
- Estimated installation timeline
- Government/DISCOM documentation included
- Taxes, if applicable
- Payment schedule
Avoid guaranteeing a particular electricity saving, power generation figure or investment payback period unless your calculation clearly states its assumptions. Actual solar generation depends on location, orientation, shading, weather, system performance and maintenance.
9. Sample 3 kW Solar Project Cost Calculation
Important: The following calculation is only an illustrative business example. It is not an MNRE benchmark price, supplier quotation or guaranteed market price. Actual equipment and installation costs vary by city, equipment specifications, roof type, project complexity and supplier.
| Example Cost Item | Illustrative Amount |
|---|---|
| Solar panels + inverter | ₹1,05,000 |
| Mounting structure and electrical components | ₹25,000 |
| Installation labour | ₹12,000 |
| Transport and project expenses | ₹8,000 |
| Business overhead allocated to project | ₹10,000 |
| Illustrative total business cost | ₹1,60,000 |
| Illustrative customer quotation | ₹1,80,000 |
| Illustrative amount remaining before other expenses/taxes | ₹20,000 |
This ₹20,000 should not automatically be treated as net profit. Warranty claims, callbacks, staff salaries, office costs, marketing expenses, insurance, taxes, financing costs and other overheads may still have to be paid.
If the same example represented an eligible 3 kW residential installation under PM Surya Ghar, the household may be eligible for Central Financial Assistance of up to ₹78,000, subject to the scheme's current rules and successful completion of the required process. This subsidy should be explained separately from the installer's project economics.
10. How to Find Solar Installation Customers
Solar is a relatively high-value purchase, so customers normally compare multiple vendors before choosing an installer. Trust, technical clarity and after-sales support can therefore be as important as price.
Google Business Profile
Create and maintain a Google Business Profile with your correct service area, phone number, website, project photographs and genuine customer reviews. This can help your company appear when people search locally for solar installation services.
Local SEO
Create useful pages covering services in the cities or regions where you actually operate. You can also publish educational articles answering common questions about system sizing, subsidy procedures, maintenance, net metering and solar installation costs.
For additional ideas on attracting customers online, visit our Marketing Insights section.
Local Partnerships
Potential referral partners can include:
- Electricians
- Architects
- Builders
- Electrical shops
- Real-estate consultants
- Housing societies
- Facility-management companies
Customer Referrals
After completing a project, stay in contact with the customer and request an honest review. You can also create a referral programme, but ensure the cost of any reward is included in your customer-acquisition budget rather than assuming that every referral will be profitable.
11. Offer Maintenance and After-Sales Support
Your relationship with the customer should not necessarily end after installation. Consider offering:
- Periodic system inspection
- Panel-cleaning services
- Generation-performance checks
- Inverter troubleshooting
- Electrical inspection
- Warranty coordination
- Annual maintenance contracts for suitable customers
Reliable after-sales support can help generate repeat business and referrals while distinguishing your company from installers that compete only on upfront price.
12. Start Small and Build a Track Record
A new installer does not need to begin with large commercial projects. Completing smaller residential systems can help you develop installation procedures, supplier relationships, customer reviews and a portfolio of completed projects.
As your experience grows, you can consider larger opportunities such as housing societies, schools, warehouses, hospitals and industrial rooftops. Larger projects may require more detailed engineering, financing, contracts, safety planning and working capital.
Conclusion
Starting a solar panel installation business in India in 2026 can provide access to a growing renewable-energy market, particularly as rooftop solar adoption expands. However, the business should not be treated as guaranteed high-profit or "future-proof". Results depend on equipment costs, local competition, regulatory requirements, customer acquisition, installation quality, working capital and after-sales service.
A sensible approach is to understand your local DISCOM process, meet applicable electrical and business requirements, use compliant equipment, build a qualified installation team and provide customers with transparent quotations.
For businesses targeting residential customers under PM Surya Ghar, regularly check the official MNRE, PM Surya Ghar and local DISCOM resources because subsidy, vendor, technical and documentation requirements may be updated over time.
Official Sources
- Ministry of New and Renewable Energy (MNRE) – rooftop solar programmes, installed-capacity data, policies and ALMM information.
- PM Surya Ghar: Muft Bijli Yojana National Portal – consumer applications, vendor selection and scheme information.
- PM Surya Ghar Vendor Portal – vendor-registration information.
- Local DISCOM – state/city-specific grid connectivity, metering and installation requirements.
- Central Board of Indirect Taxes and Customs (CBIC) – GST registration requirements and guidance.
Disclaimer: This article is for general business information only. Solar installation, taxation, licensing, subsidy and DISCOM requirements may differ by state and may change. Verify the latest requirements with the relevant government authority, DISCOM and qualified professionals before starting operations or quoting a project.