How much does a solar installation cost in kerala ?
The typical cost for a solar installation in Kerala in 2025 is between ₹75,000 to ₹85,000 per kW before subsidy, and after applying central government subsidies, the net cost comes down significantly, especially for smaller residential systems.
Cost Breakdown by System Size
| System Size | Cost Before Subsidy | Subsidy | Net Cost (After Subsidy) |
|---|---|---|---|
| 1 kW | ₹75,000–₹85,000 | ₹30,000 | ₹45,000–₹55,000 |
| 2 kW | ₹1,50,000–₹1,70,000 | ₹60,000 | ₹90,000–₹1,10,000 |
| 3 kW | ₹1,89,000–₹2,15,000 | ₹78,000 | ₹1,11,000–₹1,37,000 |
| 5 kW | ₹3,15,000–₹3,57,000 | ₹78,000 | ₹2,37,000–₹2,79,000 |
| 10 kW | ₹5,31,000–₹6,07,000 | ₹78,000 | ₹4,53,000–₹5,29,000 |
Government Subsidy Details
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The national subsidy is typically fixed: ₹30,000 for 1 kW, ₹60,000 for 2 kW, ₹78,000 for 3 kW or above for residential rooftop systems.
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Subsidy amounts are processed via the National Portal for Rooftop Solar after installation and inspection.
Factors Affecting Cost
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System capacity: Higher capacity systems have a lower per-kilowatt price.
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Roof/site conditions: Installation complexity and material can slightly adjust pricing.
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Off-grid/Hybrid: Systems with battery backup are more expensive than on-grid systems.
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Installer choice: Prices can vary depending on the company and the quality of components.
Example Calculation
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For a typical 3 kW residential rooftop system, expect to pay ₹1.89 lakh to ₹2.15 lakh upfront, and after a subsidy of ₹78,000, the net cost will be ₹1.1 lakh to ₹1.37 lakh.
These prices include solar panels, inverter, structure, installation, net-metering, and basic documentation, making solar energy increasingly accessible in Kerala.