Complete guide to installing solar panels at home in India in 2026 - costs, government subsidies under PM Surya Ghar Yojana, ROI calculation, best brands and step-by-step installation process.
India receives over 300 days of usable sunshine in most states, yet fewer than five percent of residential rooftops have solar panels. That is changing fast. With electricity bills climbing year after year and the central government offering generous subsidies through PM Surya Ghar Muft Bijli Yojana, 2026 is shaping up as the best year to go solar at home.
This guide covers everything you need, from the cost per kilowatt to the exact subsidy you can claim, the best panel brands, installation steps and a realistic payback calculation.
Why home solar makes sense in 2026
Residential electricity tariffs in India have risen by 20 to 40 percent across most states between 2020 and 2026. A middle-class household spending Rs 2,000 to Rs 4,000 per month on electricity is now spending Rs 3,000 to Rs 6,000 for the same consumption. Meanwhile, the cost of solar panels has dropped by nearly 50 percent over the past five years.
The arithmetic is straightforward: a rooftop solar system that costs Rs 60,000 to Rs 1,20,000 after subsidy can eliminate or drastically reduce a monthly bill of Rs 2,000 to Rs 5,000. The system pays for itself in three to five years and then generates free electricity for the remaining 20 to 22 years of its lifespan.
Cost of solar panels for home in India 2026
Solar panel pricing depends on system size, panel type and whether you choose an on-grid, off-grid or hybrid setup.
Price per kilowatt (before subsidy)
| System size | Approximate cost (on-grid) | Approximate cost (off-grid with battery) |
|---|---|---|
| 1 kW | Rs 55,000 - Rs 70,000 | Rs 1,00,000 - Rs 1,30,000 |
| 2 kW | Rs 1,10,000 - Rs 1,40,000 | Rs 1,90,000 - Rs 2,50,000 |
| 3 kW | Rs 1,50,000 - Rs 1,90,000 | Rs 2,70,000 - Rs 3,50,000 |
| 5 kW | Rs 2,40,000 - Rs 3,00,000 | Rs 4,20,000 - Rs 5,50,000 |
| 10 kW | Rs 4,50,000 - Rs 5,80,000 | Rs 8,00,000 - Rs 10,50,000 |
On-grid systems are connected to the electricity grid and do not require batteries. Excess power is exported to the grid and you receive credit on your bill through net metering. Off-grid systems store energy in batteries and are suitable for areas with unreliable grid supply. Hybrid systems combine both features.
For most urban and semi-urban homes with reliable grid connectivity, an on-grid system is the most cost-effective choice.
What is included in the cost
- Solar panels (monocrystalline or polycrystalline)
- Solar inverter (string or micro-inverter)
- Mounting structure and wiring
- Net meter (for on-grid systems)
- Installation labour
- DISCOM approval and documentation
PM Surya Ghar Muft Bijli Yojana - government subsidy
The central government's flagship rooftop solar subsidy scheme provides a direct benefit transfer to households that install rooftop solar systems.
Subsidy amounts (2026)
| System size | Central subsidy |
|---|---|
| Up to 2 kW | Rs 30,000 per kW (total up to Rs 60,000) |
| 2 kW to 3 kW | Rs 30,000 per kW for first 2 kW + Rs 18,000 per kW for remaining (total up to Rs 78,000) |
| Above 3 kW | Subsidy capped at Rs 78,000 |
Effective cost after subsidy
| System size | Cost before subsidy | Subsidy | Cost after subsidy |
|---|---|---|---|
| 1 kW | Rs 60,000 | Rs 30,000 | Rs 30,000 |
| 2 kW | Rs 1,20,000 | Rs 60,000 | Rs 60,000 |
| 3 kW | Rs 1,70,000 | Rs 78,000 | Rs 92,000 |
| 5 kW | Rs 2,70,000 | Rs 78,000 | Rs 1,92,000 |
Some state governments offer additional subsidies. For example, Gujarat, Maharashtra and Kerala have state-level top-up incentives that can reduce the effective cost further. Check your state nodal agency website for the latest state-specific subsidy.
How to apply for the subsidy
- Visit the PM Surya Ghar portal at pmsuryaghar.gov.in
- Register using your electricity consumer number and Aadhaar
- Select an empanelled vendor from the portal
- Get the system installed and inspected by your DISCOM
- Upload installation photos, invoices and the net meter reading
- Subsidy is credited directly to your bank account within 30 to 60 days after verification
Choosing the right system size
The right system size depends on your monthly electricity consumption and available roof space.
Quick sizing guide
| Monthly electricity bill | Recommended system size | Roof space needed |
|---|---|---|
| Rs 1,000 - Rs 2,000 | 1 - 2 kW | 80 - 160 sq ft |
| Rs 2,000 - Rs 3,500 | 2 - 3 kW | 160 - 240 sq ft |
| Rs 3,500 - Rs 5,000 | 3 - 5 kW | 240 - 400 sq ft |
| Rs 5,000 - Rs 8,000 | 5 - 7 kW | 400 - 560 sq ft |
| Above Rs 8,000 | 7 - 10 kW | 560 - 800 sq ft |
A 1 kW system generates approximately 4 to 5 units of electricity per day in most Indian cities. A typical Indian household consuming 150 to 250 units per month needs a 2 to 3 kW system to offset most of the bill.
Best solar panel brands in India
Choose panels from manufacturers with proven track records and reliable warranties.
| Brand | Panel type | Efficiency | Warranty | Price range (per panel, 400W+) |
|---|---|---|---|---|
| Tata Solar | Monocrystalline | 20-21% | 25 years | Rs 12,000 - Rs 15,000 |
| Adani Solar | Mono PERC | 20-22% | 25 years | Rs 11,000 - Rs 14,000 |
| Waaree Energies | Mono PERC / Bifacial | 21-22% | 25-30 years | Rs 12,000 - Rs 16,000 |
| Vikram Solar | Monocrystalline | 20-21% | 25 years | Rs 11,000 - Rs 14,000 |
| Luminous | Mono PERC | 19-21% | 25 years | Rs 10,000 - Rs 13,000 |
| Loom Solar | Mono PERC | 20-21% | 25 years | Rs 11,000 - Rs 14,000 |
Always choose monocrystalline panels over polycrystalline for home installations. They are more efficient per square foot, perform better in high temperatures and have longer useful lifespans.
Monocrystalline vs polycrystalline vs thin-film
- Monocrystalline: Highest efficiency (20-22%), best for limited roof space, higher cost. Recommended for most homes.
- Polycrystalline: Lower efficiency (15-17%), cheaper, requires more space. Acceptable for large roofs with budget constraints.
- Thin-film: Lowest efficiency (10-13%), flexible, rarely used for home rooftops. Suited for commercial or curved surfaces.
Step-by-step installation process
Step 1 - Site assessment
An installer visits your home to assess roof orientation, structural strength, shading from trees or buildings, and available area. South-facing roofs get the most sunlight in India. East-west orientations also work with slightly reduced output.
Step 2 - System design and quotation
Based on the assessment, the installer designs a system layout and provides a detailed quotation covering panels, inverter, mounting, wiring and net meter.
Step 3 - DISCOM approval
The installer applies to your local DISCOM (Distribution Company) for a net meter connection. Approval typically takes 15 to 30 days. This step is mandatory for on-grid systems.
Step 4 - Installation
Physical installation takes one to three days for a typical home system. Panels are mounted on aluminium frames bolted to the roof, the inverter is wall-mounted near the main distribution board, and wiring connects the system to the grid through the net meter.
Step 5 - DISCOM inspection and net meter installation
After installation, the DISCOM sends an inspector to verify the setup. Once approved, the bidirectional net meter is installed. This meter records both the electricity you consume from the grid and the surplus you export.
Step 6 - Commissioning and subsidy claim
The system goes live. You upload documentation to the PM Surya Ghar portal and claim your subsidy.
ROI and payback calculation
Let us work through a real example for a 3 kW on-grid system in a city like Pune or Jaipur.
- System cost before subsidy: Rs 1,70,000
- Government subsidy: Rs 78,000
- Net cost: Rs 92,000
- Average daily generation: 12-13 units
- Monthly generation: 360-390 units
- Monthly electricity saved (at Rs 7 per unit): Rs 2,520 - Rs 2,730
- Annual savings: Rs 30,000 - Rs 33,000
- Payback period: 2.8 - 3.1 years
- System lifespan: 25 years
- Total savings over lifespan: Rs 7,50,000 - Rs 8,25,000 (assuming moderate tariff inflation)
After the payback period, you effectively generate free electricity for over 20 years. This makes rooftop solar one of the best investments a homeowner can make.
Maintenance requirements
Solar panels require minimal maintenance.
- Cleaning: Wash panels with water every two to four weeks to remove dust. Dusty panels lose 10 to 15 percent efficiency.
- Inverter check: Monitor the inverter display or app for any error codes. Modern inverters have Wi-Fi connectivity and send alerts to your phone.
- Annual inspection: Have the installer check wiring, mounting bolts and panel condition once a year.
- Warranty claims: Most panel manufacturers offer 25-year performance warranties guaranteeing at least 80 percent output at the end of the warranty period.
Common concerns addressed
Will solar panels damage my roof? No. Panels are mounted on frames that distribute weight evenly. A standard RCC roof can handle the load without any structural modification.
What happens on cloudy or rainy days? Panels still generate electricity on cloudy days, though at 20 to 40 percent of their peak capacity. On-grid systems draw from the grid when solar generation is insufficient.
Can I run an AC on solar? A 1.5-ton AC consumes about 1.5 to 2 units per hour. A 3 kW system generates 12 to 13 units per day, which is enough to run the AC for six to seven hours while also powering other appliances.
Is net metering available everywhere? Net metering is available in all Indian states, though the specific policies, such as export tariff rates and maximum allowed capacity, vary by state. Check with your local DISCOM.
What about apartments and flats? Many housing societies now install shared rooftop solar systems. Individual flat owners can also install systems on their allotted terrace space if the society permits it. Some states allow virtual net metering for group housing.
This article is for educational purposes and does not constitute financial or investment advice. Consult a certified solar installer for site-specific recommendations.
Frequently asked questions
How much does a solar panel system cost for a home in India in 2026?
A 1 kW on-grid system costs approximately Rs 55,000 to Rs 70,000 before subsidy. A 3 kW system, which suits most Indian households, costs Rs 1,50,000 to Rs 1,90,000 before subsidy. After the central government subsidy of up to Rs 78,000, the effective cost of a 3 kW system comes down to around Rs 92,000 to Rs 1,12,000.
What is the government subsidy for rooftop solar panels in 2026?
Under PM Surya Ghar Muft Bijli Yojana, the central government provides Rs 30,000 per kW subsidy for the first 2 kW and Rs 18,000 per kW for the 2 kW to 3 kW portion, capped at Rs 78,000 total. The subsidy is credited directly to your bank account after installation and DISCOM verification.
How many solar panels are needed for a house in India?
A typical Indian household consuming 150 to 250 units per month needs a 2 to 3 kW system, which requires 5 to 8 solar panels of 400W each. The exact number depends on your monthly electricity consumption and the wattage of the panels you choose.
How long does a rooftop solar system last?
Solar panels last 25 to 30 years with minimal degradation. Most manufacturers provide a 25-year performance warranty guaranteeing at least 80 percent output. Inverters typically last 10 to 15 years and may need replacement once during the system lifespan.
What is the payback period for home solar panels in India?
With the government subsidy, the payback period for a rooftop solar system in India is typically 3 to 5 years. After that, the electricity generated is essentially free for the remaining 20 to 22 years of the system lifespan.
Can I install solar panels in a rented house or apartment?
In a rented house, you would need the landlord's permission and a portable or removable mounting system. In apartments, housing societies can install shared rooftop systems. Some states also allow virtual net metering for group housing where credits are distributed among individual flat owners.
What is net metering and how does it work?
Net metering allows you to export surplus solar electricity to the grid and receive credit on your electricity bill. A bidirectional meter records both the electricity you consume from the grid and the surplus you export. At the end of the billing cycle, you pay only for the net consumption.
Which is better: on-grid or off-grid solar for home?
On-grid systems are cheaper, more efficient and recommended for homes with reliable grid connectivity. Off-grid systems with battery storage are suitable for areas with frequent power cuts or no grid access. Hybrid systems offer the benefits of both but cost significantly more.
Do solar panels work during monsoon or cloudy weather?
Yes, solar panels generate electricity even on cloudy days, though at 20 to 40 percent of their peak capacity. On-grid systems automatically draw from the grid when solar generation is low, so you never face a power shortage.