3kW solar system price in India (2026)
The sweet spot for most Indian homes, runs one AC comfortably and maxes out the ₹78,000 subsidy. Suits a monthly bill of about ₹2,500-3,000.
~8 panels · ~270 sq ft of shadow-free roof
That's roughly the area of 2.1 car parking spots, counting ~415W panels with walking space for maintenance. Water tanks, parapet shadows, and dish antennas all eat into usable area, so get a site survey before finalizing size.
| Size | Gross (at ₹60k/kW) | Subsidy | Net cost | Units/month | Fits bill of |
|---|---|---|---|---|---|
| 1kW | ₹60,000 | ₹30,000 | ₹30,000 | ~120 | ₹700-1,000 |
| 2kW | ₹1,20,000 | ₹60,000 | ₹60,000 | ~240 | ₹1,500-2,000 |
| 3kW (this page) | ₹1,80,000 | ₹78,000 | ₹1,02,000 | ~360 | ₹2,500-3,000 |
| 4kW | ₹2,40,000 | ₹78,000 | ₹1,62,000 | ~480 | ₹3,000-4,000 |
| 5kW | ₹3,00,000 | ₹78,000 | ₹2,22,000 | ~600 | ₹4,000-5,000 |
| 6kW | ₹3,60,000 | ₹78,000 | ₹2,82,000 | ~720 | ₹5,000-6,000 |
| 7kW | ₹4,20,000 | ₹78,000 | ₹3,42,000 | ~840 | ₹6,000-7,000 |
| 8kW | ₹4,80,000 | ₹78,000 | ₹4,02,000 | ~960 | ₹7,000-8,000 |
| 10kW | ₹6,00,000 | ₹78,000 | ₹5,22,000 | ~1200 | ₹8,000-10,000 |
State top-up subsidies (e.g. Gujarat +₹10,000/kW) reduce net cost further, pick your state in thestate-wise calculator.
Collateral-free solar loan at ~7%
- ✓Under PM Surya Ghar, banks offer collateral-free loans of up to ₹2 lakh for residential rooftop systems up to 3kW.
- ✓Interest is capped at roughly 7% p.a. (pegged to repo rate + 0.5%), far below typical personal-loan rates of 11-16%.
- ✓Available through most public sector banks; apply via the Jan Samarth portal or your bank branch with your PM Surya Ghar application ID.
- ✓The subsidy (up to ₹78,000) can be used to prepay the loan once it lands in your account.
Official portals, apply & verify here
We are not affiliated with any government body. Applications and current scheme rules live on these official portals, never pay anyone to "arrange" the subsidy for you.
3kW solar system FAQs
What is the price of a 3kW solar system in India in 2026?
A 3kW grid-tied residential system typically costs ₹1,35,000-₹2,25,000 before subsidy (₹45,000-75,000 per kW depending on brand, structure, and location). At the mid-range benchmark of ₹60,000/kW that's ₹1,80,000 gross, and about ₹1,02,000 after the ₹78,000 central subsidy.
How much subsidy does a 3kW system get?
₹78,000 under PM Surya Ghar. Some states add a top-up on this, check your state's page.
How many units does a 3kW system generate per month?
Roughly 360 units per month (~4,320 units/year) at the conservative India-wide average of 4 units per kW per day. High-irradiance states like Rajasthan and Gujarat generate 10-20% more; cloudy or hill regions somewhat less.
How much roof space does a 3kW system need?
About 270 sq ft of shadow-free roof (80-100 sq ft per kW). Shadows from water tanks, parapets, or neighbouring buildings cut generation sharply, an installer's site survey will confirm usable area.
Is a 3kW system right for my home?
A 3kW system suits a monthly electricity bill of roughly ₹2,500-3,000. The sweet spot for most Indian homes, runs one AC comfortably and maxes out the ₹78,000 subsidy.
Not sure 3kW is the right size?
Enter your actual monthly bill and the calculator recommends a size matched to your usage, with subsidy, net cost, and payback for your state.
Size my system from my bill