A residential rooftop solar system in India costs between ₹55,000 and ₹85,000 per kW in 2026 for a complete on-grid installation. A typical home needs 3 kW to 5 kW, which works out to roughly ₹1.65 lakh to ₹3.75 lakh before subsidies. Apply for the PM Surya Ghar subsidy, and that number drops significantly, often cutting the payback period to under four years.
What Does a Solar Power System Actually Cost in India Right Now?
There is no single solar system price in India. The final number depends on system size, panel quality, inverter type, roof condition, and your state’s DISCOM policies. That said, 2026 has brought more price clarity than any year before.
The average installed cost for a complete on-grid residential system runs between ₹55,000 and ₹85,000 per kW, depending on equipment quality, roof type, and installer. This is the total cost of making solar actually work on your roof, including panels, an inverter, a mounting structure, wiring, and commissioning it. It is not just the panel price.
The panel-only price looks low, but the complete installed cost per watt, including inverter, mounting, wiring, and labour, sits at ₹55 to ₹85 per watt for residential on-grid systems in 2026.
The cheap solar era is over. A structural change due to global commodity inflation, China’s revised export policies and India’s enforcement of ALMM (Approved List of Models and Manufacturers) regulations has resulted in commercial and industrial buyers facing solar project costs approximately 25% higher than in 2025. For residential buyers, the picture is slightly different because PM Surya Ghar subsidies buffer the impact.
How Much Do a 3kW, 5kW, and 10kW System Cost?
Most homes fall into one of three size categories. Here is what you can realistically expect to pay in 2026:
| System Size | Before Subsidy | After Subsidy (PM Surya Ghar) | Ideal For |
| 3 kW | ₹1.65L – ₹2.25L | ₹87,000 – ₹1.47L | 2-3 BHK home, moderate usage |
| 5 kW | ₹2.75L – ₹3.75L | ₹2.02L – ₹3.02L | Larger home, 1-2 ACs |
| 10 kW | ₹5.5L – ₹8.5L | No direct subsidy | Villas, small businesses |
A 3kW solar system price in India for an on-grid rooftop sits at approximately ₹1,65,000 to ₹2,25,000 before subsidy. After the central government subsidy of ₹78,000, the effective cost comes down to approximately ₹87,000 to ₹1,47,000 depending on your city and installer.
For bigger installations, a typical 2026 band for a 5kW solar system price in India ranges from ₹2.75 lakh to ₹3.75 lakh, with the main swing factors being the inverter grade and structure.
The price of a 10kW solar system in India is where quotes differ the most. At this scale, you are essentially installing a small rooftop plant. String planning, DC/AC protections, distribution board integration, and monitoring all add layers of complexity and cost that smaller systems do not need. Expect ₹5.5 lakh to ₹8.5 lakh for a quality 10 kW residential or light commercial setup.
What Does the Solar Subsidy in India Look Like in 2026?
The PM Surya Ghar Muft Bijli Yojana is the central government’s flagship scheme for solar subsidies in India 2026, and it remains active and well-funded.
As of March 2026, the PM Surya Ghar Muft Bijli Yojana has received 63,26,125 applications, completed 25,02,217 installations, and benefited 31,12,850 households, as confirmed in a Lok Sabha parliamentary reply dated March 6, 2026.
The subsidy structure works like this:
- Up to 2 kW capacity: ₹30,000 per kW
- 2 kW to 3 kW capacity: ₹18,000 per kW for the additional capacity
- Maximum subsidy cap: ₹78,000 per household
Only on-grid (grid-tied) systems are eligible. Off-grid or standalone battery systems are not covered. The system must be installed by an MNRE-empanelled vendor. The subsidy is credited directly to your bank account within 30 days of DISCOM approval. One household can avail itself of the subsidy only once.
Government employees and income taxpayers are NOT eligible. This is a detail many families miss before applying.
For commercial and industrial buyers, the subsidy picture is different. Commercial and industrial rooftop systems generally do not receive direct capital subsidies but benefit from accelerated depreciation, net metering, and energy cost savings.
What Goes Into the Solar Installation Cost for a Home?
When you look at any solar panel installation cost for a home in India, it helps to break the quote apart. A transparent installer will itemise each component.
Core components and their approximate cost contribution:
- Solar panels (modules): In 2026, solar panels cost between ₹16 to ₹40 per watt, with Mono PERC panels costing between ₹22 to ₹28 per watt. Tier-1 ALMM-listed manufacturer panels with higher efficiency and a 25-year linear output warranty.
- Inverter: Generally 15 to 25% of total system cost. String inverters are standard; hybrid inverters cost more but allow battery integration later.
- Mounting structure: Galvanised steel or aluminium rails. Never compromise here, as this is what keeps your panels standing through monsoon and heat cycles.
- Wiring, DC/AC protections, earthing: Often bundled but must be explicitly listed in any quote.
- Installation labour and commissioning: Varies by roof complexity and city.
If a quote looks unusually low, ask what is missing. DB work, earthing upgrades, and paperwork are common omissions in underbid quotes.
How Long Does It Take to Get Your Money Back?
The typical payback period is 3.5 to 6 years for residential systems in India, depending on system size, electricity tariff, and usage pattern. After payback, the system generates power for 20 or more years.
For homes that apply the PM Surya Ghar subsidy, payback compresses faster. A 3 kW system after subsidy costs around ₹1,00,000 to ₹1,32,000, with a payback period of 3 to 3.5 years and lifetime savings of ₹7 to ₹9 lakh over 25 years.
DS Group Solar, which operates as Solaxio DS Energy Pvt. Ltd. and has commissioned over 3,100 MW of solar projects across India, consistently sees residential clients in central India achieve payback within four years, particularly in states where grid tariffs have risen sharply over the past three years.
The risk of waiting? ALMM enforcement is expected to tighten further in the second half of 2026, which could push complete system costs up by another 10 to 15%. That is a real consideration if you are sitting on the fence.
How Do You Pick the Right Installer?
A cheap system installed badly will underperform for 25 years. Here is what to verify before signing any agreement: MNRE empanelment (only MNRE-empanelled vendors can process the PM Surya Ghar subsidy on your behalf), ALMM-listed panels, a transparent itemised quote, and a local after-sales support team.
Beyond credentials, ask the installer how they handle net metering paperwork with your DISCOM. This step delays many installations unnecessarily when the vendor is inexperienced or not locally connected.
DS Group Solar handles EPC (Engineering, Procurement and Construction) for residential rooftop, commercial, and large-scale MW projects. Their team uses ALMM-BIS-approved components and stays involved post-commissioning, including remote monitoring and O&M services. That matters when you are thinking about a 25-year investment.
FAQs
How much does a home solar system price in India cost in 2026 for a 2 BHK flat?
A 2 BHK home with moderate consumption (300 to 400 units per month) typically needs a 3 kW system. That costs ₹1.65 lakh to ₹2.25 lakh before the subsidy and around ₹87,000 to ₹1.47 lakh after applying the PM Surya Ghar benefit.
Is the solar panel cost for homes in India different from what commercial properties pay?
Yes, residential and commercial costs differ in two ways. Residential buyers get subsidies; commercial buyers do not. However, commercial buyers get accelerated depreciation benefits under income tax provisions, which reduces their effective cost over time.
What is the solar power system cost per kW in India for 2026?
For a complete on-grid residential installation, the benchmark is ₹55,000 to ₹85,000 per kW. Premium systems with high-efficiency panels and hybrid inverters can exceed this range. If a quote comes in significantly below ₹55,000 per kW, ask what components are excluded.
Can I get a loan to cover solar panel installation costs for a home in India?
Under PM Surya Ghar Muft Bijli Yojana, all nationalised banks and major financial institutions offer collateral-free solar loans starting from 7% interest per annum for systems up to 3 kW. The loan amount can go up to ₹2 lakh for systems of up to 3 kW capacity.
Does the rooftop solar system cost in India vary by state?
Yes, meaningfully so. States with higher grid electricity tariffs, like Maharashtra, Rajasthan, and Tamil Nadu, offer better financial returns on the same system. Additionally, some states layer their own subsidies on top of the central PM Surya Ghar subsidy, further reducing upfront costs. Your DISCOM’s net metering policy also affects how much value you get back from surplus generation.
