Your electricity bill keeps going up every year. For many Indian homes, a monthly bill of ₹4,000 to ₹8,000 has become normal, especially when ACs, water pumps, and kitchen appliances run throughout the day.
This is exactly why more families are switching to rooftop solar, and the 5 kW solar system has become one of the most popular choices for medium and large homes.
In 2026, a 5 kW solar system price in India ranges from approximately ₹2.8 lakh to ₹3.8 lakh before subsidy. After the government subsidy of ₹78,000, the effective cost can reduce to around ₹2.0 lakh to ₹3.0 lakh depending on the location, panel type, and system configuration.
What Is a 5 kW Solar System?
A 5 kW solar system is a rooftop setup that converts sunlight into electricity for your home. It consists of:
- Solar panels
- Solar inverter
- Mounting structure
- Wiring and protection equipment
- Net meter
Together, these components work like a small power plant on your rooftop.
Power Generation Capacity
A 5 kW system typically generates:
- 20–24 units per day
- 7,000–8,000 units annually
This is generally sufficient for:
- 3–5 BHK homes
- 2 air conditioners
- Refrigerator
- Washing machine
- Water pump
- Fans and lights
- Television and kitchen appliances
5 kW Solar System Price in India (2026)
The final price depends on the type of solar system selected.
On-Grid, Off-Grid & Hybrid Price Comparison
| System Type | Description | Price Range |
|---|---|---|
| On-Grid | Connected to electricity grid, exports excess power | ₹2.8 lakh – ₹3.8 lakh |
| Off-Grid | Battery-based system for backup power | ₹3.1 lakh – ₹5.4 lakh |
| Hybrid | Grid connection with battery backup | ₹4.5 lakh – ₹5.8 lakh |
For most urban homes with reliable electricity supply, an on-grid solar system is usually the most economical and subsidy-friendly option.
Cost Breakdown of a 5 kW Solar System
| Component | Share of Cost | Approximate Cost |
|---|---|---|
| Solar Panels | 50–60% | ₹1,10,000 – ₹1,60,000 |
| Inverter | 15–25% | ₹35,000 – ₹70,000 |
| Mounting Structure | 8–10% | ₹18,000 – ₹30,000 |
| Wiring & Accessories | 8–10% | ₹15,000 – ₹30,000 |
| Installation & Labour | 5–7% | ₹12,000 – ₹20,000 |
A complete installed on-grid system generally costs around ₹55,000–₹85,000 per kW.
Factors Affecting 5 kW Solar System Price
Several factors influence the final quotation:
Panel Technology
Modern N-Type TOPCon panels are more efficient than older Mono PERC panels and may cost slightly more.
Inverter Brand
Premium inverter brands generally offer better performance, reliability, and warranty support.
Location and DISCOM
Local electricity board requirements, transportation, and state regulations affect pricing.
Roof Structure
Building height, roof layout, and installation complexity impact mounting and labour costs.
Service & Warranty
Installers offering strong after-sales support and maintenance packages may charge slightly more.
To claim subsidy benefits, ensure the system uses ALMM-listed and DCR-compliant solar panels.
5 kW Solar System Price After Subsidy
Under the PM Surya Ghar Muft Bijli Yojana, residential rooftop solar users can receive government subsidy support.
Central Government Subsidy
| System Size | Subsidy Amount |
|---|---|
| Up to 1 kW | ₹30,000 |
| Up to 2 kW | ₹60,000 |
| 3 kW and Above | ₹78,000 |
A 5 kW residential on-grid system qualifies for the maximum subsidy of ₹78,000.
Some states may provide additional incentives on top of the central subsidy.
Eligibility for Solar Subsidy
To claim subsidy benefits:
- You must own the rooftop.
- The installation must be residential.
- ALMM-listed panels must be used.
- Installation must be done through an approved installer.
- The property should not have already received rooftop solar subsidy.
How to Apply for Subsidy
Step 1
Register on the PM Surya Ghar Portal.
Step 2
Submit rooftop and electricity connection details.
Step 3
Choose an approved installer.
Step 4
Complete solar installation.
Step 5
Finish net metering and commissioning.
Step 6
Receive subsidy directly in your bank account.
Sample Price Calculation After Subsidy
Example:
| Item | Amount |
|---|---|
| System Cost | ₹3,00,000 |
| Central Subsidy | ₹78,000 |
| Final Cost | ₹2,22,000 |
If an additional state subsidy of ₹30,000 applies:
| Item | Amount |
|---|---|
| Final Cost After State Subsidy | ₹1,92,000 |
Savings, ROI and Payback Period
A 5 kW solar system provides significant long-term savings.
Expected Savings
| Metric | Value |
|---|---|
| Monthly Savings | ₹2,500 – ₹4,500 |
| Annual Savings | ₹30,000 – ₹50,000 |
| Payback Period | 3–5 Years |
| System Life | 25+ Years |
After the payback period, most electricity generated is effectively free.
Net Metering Benefits
With net metering:
- Excess electricity is exported to the grid.
- The utility provides credits for exported units.
- Electricity bills reduce further.
Is a 5 kW Solar System Right for Your Home?
A 5 kW system is ideal for:
- 3–5 BHK homes
- Villas and bungalows
- Homes consuming 7,000–8,000 units annually
- Families with monthly bills between ₹3,000–₹8,000
- Homes running multiple air conditioners
Number of Panels and Roof Space Required
Solar Panels Required
Depending on panel wattage:
- 9–14 panels typically required
- Modern 540W–575W panels require around 9–10 panels
Roof Space Needed
- 350–450 sq. ft.
- Shade-free area preferred
- 6–7 hours of daily sunlight recommended
Simple Formula to Calculate System Size
- Collect electricity bills from the last 12 months.
- Add annual unit consumption.
- Divide by 1,400.
Example
Annual Consumption: 7,000 units
7,000 ÷ 1,400 = 5 kW
Required System Size = 5 kW
Benefits of a 5 kW Rooftop Solar System
Lower Electricity Bills
Can reduce monthly electricity expenses by up to 90%.
Protection Against Tariff Increases
Generate your own electricity instead of depending entirely on grid power.
Environmental Benefits
Can offset emissions equivalent to planting approximately 75 trees annually.
Increased Property Value
Homes with rooftop solar often attract higher buyer interest due to lower operating costs.
Why Choose Sunheaven for Your 5 kW Solar Installation?
MNRE Registered & ALMM Approved
Uses approved high-efficiency solar components.
Complete End-to-End Support
Assistance with:
- Site survey
- Design
- Installation
- Net metering
- Subsidy documentation
Transparent Pricing
Clear cost breakdown with no hidden charges.
Reliable After-Sales Service
Ongoing support to maintain long-term system performance.
Conclusion
A 5 kW solar system is one of the best choices for medium and large Indian households. With prices ranging from ₹2.8 lakh to ₹3.8 lakh and subsidy support reducing the effective cost, rooftop solar has become more affordable than ever.
The system can generate around 7,000–8,000 units annually, reduce electricity bills significantly, and recover its cost within 3–5 years. With a lifespan exceeding 25 years, it continues delivering value long after the initial investment is recovered.
Frequently Asked Questions
What is the 5 kW solar system price in India in 2026?
A 5 kW on-grid solar system typically costs between ₹2.8 lakh and ₹3.8 lakh before subsidy. After subsidy, the cost generally falls between ₹2.0 lakh and ₹3.0 lakh.
How much subsidy is available for a 5 kW solar system?
Eligible residential installations can receive up to ₹78,000 under the PM Surya Ghar scheme.
How many solar panels are required for a 5 kW system?
Generally between 9 and 14 panels depending on panel wattage and efficiency.
How much rooftop space is needed?
Approximately 350–450 square feet of shade-free rooftop area.
How many units does a 5 kW solar system generate?
Around 20–24 units per day or 7,000–8,000 units annually.
How many ACs can a 5 kW solar system run?
Typically two 1.5-ton ACs along with other common household appliances during daytime operation.
What is the payback period?
Most homeowners recover their investment within 3–5 years.
Do solar panels work at night?
No. Solar panels generate electricity only when sunlight is available. At night, on-grid systems draw power from the utility grid.