Solar Installation Cost Breakdown in India (2026)
Complete breakdown of solar panel installation costs in India. Learn about panel costs, inverter prices, installation charges, and how to maximize your subsidy.
Thinking about going solar? One of the first questions everyone asks is: "How much will it cost?"
In this guide, we'll break down every component of a solar installation — so you know exactly where your money goes.
New to solar? Start with our beginner's guide to solar first.
The Big Picture
A typical rooftop solar system in India costs between ₹50,000 to ₹60,000 per kW before subsidies. After the PM Surya Ghar subsidy, this drops to around ₹30,000 to ₹40,000 per kW.
Where Does Your Money Go?
Let's look at each component in detail.
1. Solar Panels (45-50% of cost)
The panels themselves are the biggest expense. For a residential system, you'll typically use panels rated between 400W to 550W each.
| Panel Type | Price per Watt | 3 kW System Cost |
|---|---|---|
| Mono PERC (Standard) | ₹22-26/W | ₹66,000 - 78,000 |
| TOPCon Bifacial (Recommended) | ₹26-30/W | ₹78,000 - 90,000 |
| HJT (Premium) | ₹32-38/W | ₹96,000 - 1,14,000 |
2. Inverter (20-25% of cost)
The inverter converts DC power from panels to AC power for your home. This is the brain of your system.
| Inverter Type | Price per kW | 3 kW Cost |
|---|---|---|
| String Inverter (Recommended) | ₹8,000 - 12,000 | ₹24,000 - 36,000 |
| Hybrid Inverter | ₹15,000 - 20,000 | ₹45,000 - 60,000 |
| Micro Inverters | ₹6,000 - 8,000/panel | ₹36,000 - 48,000 |
For most homes, a simple String Inverter is more than enough. Read our inverter guide for more details.
3. Mounting Structure & BOS (15-20% of cost)
BOS stands for "Balance of System" — everything that connects your panels to your home. This includes:
- Mounting structure: Aluminum or galvanized iron frames to hold panels at the right angle
- DC cables: Special solar cables connecting panels to inverter
- AC cables: From inverter to your meter box
- Connectors & junction boxes: MC4 connectors, DCDB, ACDB
- Earthing kit: Safety grounding for the system
| Component | Cost (3 kW system) |
|---|---|
| Mounting Structure (GI/Aluminum) | ₹12,000 - 18,000 |
| DC & AC Cables | ₹6,000 - 10,000 |
| DCDB + ACDB + Junction Box | ₹4,000 - 6,000 |
| Earthing & Lightning Arrester | ₹2,000 - 4,000 |
4. Installation & Labor (10-15% of cost)
This covers the actual work of installing your system:
- Site survey and system design
- Mounting structure installation
- Panel mounting and wiring
- Inverter installation
- Electrical connections and testing
Typical labor cost: ₹5,000 to ₹8,000 per kW
What About Net Meter & Approvals?
For On-Grid systems, you need a net meter and DISCOM approval. This typically costs:
- Net meter + registration: ₹3,000 - 8,000
- DISCOM inspection fees: ₹1,000 - 3,000
- Documentation charges: ₹2,000 - 5,000
The Complete Picture: Per kW Cost
Cost Per Kilowatt (Before Subsidy)
| Component | Cost per kW | % of Total |
|---|---|---|
| Solar Panels | ₹23,000 - 28,000 | 45-50% |
| Inverter | ₹10,000 - 14,000 | 20-25% |
| Mounting & BOS | ₹8,000 - 10,000 | 15-20% |
| Installation & Approvals | ₹7,000 - 10,000 | 10-15% |
Total: ₹50,000 - 60,000 per kW (before subsidy)
PM Surya Ghar Subsidy
The government's PM Surya Ghar Muft Bijli Yojana offers significant subsidies for residential rooftop solar:
PM Surya Ghar Yojana Subsidy
Government subsidy for residential rooftop solar
* Subsidy directly credited to your bank account after installation
| System Size | Subsidy Amount | Rate |
|---|---|---|
| 1 kW | ₹30,000 | ₹30,000/kW |
| 2 kW | ₹60,000 | ₹30,000/kW |
| 3 kW and above | ₹78,000 | Maximum cap |
Sample Quote: What You Actually Pay
Here's a realistic breakdown for a 3 kW system (most popular size for 2-3 BHK homes):
Sample Quote: 3 kW System
Cost by System Size (After Subsidy)
| System Size | Gross Cost | Subsidy | Net Cost |
|---|---|---|---|
| 2 kW | ₹1,10,000 | ₹60,000 | ₹50,000 |
| 3 kW | ₹1,65,000 | ₹78,000 | ₹87,000 |
| 5 kW | ₹2,75,000 | ₹78,000 | ₹1,97,000 |
| 10 kW | ₹5,50,000 | ₹78,000 | ₹4,72,000 |
Hidden Costs to Watch Out For
Some installers quote low prices but add hidden charges later. Watch out for:
- Net metering fees: Some quote excludes meter and DISCOM charges
- Elevation charges: Extra for 3rd floor and above
- Cable extension: If inverter is far from meter box
- Structural modifications: If roof needs reinforcement
- Annual maintenance: Some charge separately
Is Solar Worth It?
Let's do the math for a typical 3 kW system:
- Net Investment: ₹1,02,000 (after subsidy)
- Monthly Savings: ₹2,000 - 3,000 on electricity bills
- Payback Period: 3-4 years
- Returns After Payback: Free electricity for 20+ more years
Compare this to a Fixed Deposit at 7% interest — solar gives you 15-20% effective returns, tax-free!
Get Your Exact Quote
No Hidden Costs, No Surprises
The costs above are estimates. Your actual quote depends on:
- ✓Your roof type (RCC, metal sheet, tiled)
- ✓Distance from your meter box
- ✓Local permit requirements
- ✓Panel and inverter brand choice
We give you an all-inclusive quote upfront. The price we quote is the price you pay — no hidden charges, no surprises after installation.
Next Steps
Now you know exactly what goes into solar installation costs. The next step is getting a personalized quote for your home.
Use our free calculator to get an instant estimate based on your electricity bill.
→ Calculate Your Solar Savings
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