Home Solar Panel Installation Cost in India (2026): Complete Price Breakdown
Last updated at : Aug 13, 2026
If you are thinking about putting solar on your roof, the first question is almost always the same: how much will it cost? The honest answer is that it depends on your home's electricity use and the system size you need. This 2026 guide breaks down home solar installation costs in India by size, so you can match a budget to your bill.
Home Solar Cost by System Size
| System Size | Estimated Cost (Before Subsidy) | Suits Monthly Bill |
|---|---|---|
| 2kW | ₹1.5 – 2 lakh | Up to ₹2,000 |
| 3kW | ₹2 – 2.8 lakh | ₹2,000 – 4,000 |
| 5kW | ₹2.5 – 3.5 lakh | ₹5,000 – 8,000 |
| 10kW | ₹5 – 7 lakh | ₹15,000 – 30,000 |
These are installed prices covering panels, inverter, mounting structure, wiring and commissioning. Mono PERC and TOPCon panels, branded inverters and battery backup will push you toward the upper end of each range.
What Goes Into the Price
- Solar panels — the largest cost, usually 45–55% of the total
- Inverter — converts DC to usable AC power
- Mounting structure — sized for your roof type and wind zone
- Cabling, safety gear and earthing
- Battery — only if you choose a hybrid system for backup
- Installation, net metering and commissioning
Subsidy Brings the Cost Down
Under the PM Surya Ghar: Muft Bijli Yojana, residential rooftop systems qualify for a central subsidy of up to ₹78,000. The maximum is reached at a 3kW system, so homes of 3kW and above all receive that ₹78,000 ceiling on the eligible portion. Several states add their own top-up on top of this, so it is worth checking your state's combined benefit.
How Much You Save
A home solar system can cut your electricity bill by 70–90%. To put it in perspective:
- A 5kW system saves roughly ₹60,000–₹80,000 per year
- Over 25 years, total savings can reach ₹12–18 lakh
- Payback typically lands in the 3–5 year range
After payback, the electricity is effectively free for the remaining life of the system.
Roof Space You Will Need
- 2kW: around 250 sq. ft.
- 3kW: around 350 sq. ft.
- 5kW: around 450–500 sq. ft.
- 10kW: around 800–1,000 sq. ft.
The roof area should be shadow-free, ideally facing south, for best output.
Choosing the Right Size
The simplest approach is to match the system to your average monthly bill using the table above. If you plan to add an AC, an EV charger or more appliances soon, size up slightly so the system still covers you in a year or two. Most homes land on a 3kW or 5kW residential solar system. If the upfront amount feels steep, solar loans let you spread it across affordable EMIs that your savings help cover.
How Solnce Helps
At Solnce Energy, we survey your roof, calculate the right system size from your actual consumption, handle the entire subsidy and net-metering process, and install tier-1 components with long warranties. You get a clear, itemised quote and a realistic savings estimate before any work starts, so you always know exactly what you are paying for. For more guides, browse our solar blog.
Ready for a precise cost for your home? Get a free quote and we'll send a tailored proposal.
