3 kW Solar Panel System — Cost, Subsidy & Savings Calculator
India's most popular residential solar configuration. Eligible for the maximum ₹78,000 PM Surya Ghar cash subsidy.
Requires 285 sq. ft. of shadow-free roof. Generates ~357 units/month.
Direct Bank Transfer (DBT) credited straight to your bank account via PM Surya Ghar portal.
Original Cost: ₹1,65,000. Recovers cost in 2.7 Years!
Full Financial & Energy Feasibility Breakdown
Why 3 kW is the Sweet Spot for Indian Households
Over 65% of residential solar installations in India are 3 kW on-grid systems. Here is why the 3 kW plant offers the highest return on investment:
🎯 Maximum ₹78,000 Subsidy Utilization
The Government of India caps the PM Surya Ghar subsidy at ₹78,000. By installing a 3 kW system, you extract the maximum financial assistance of 50% of the benchmark equipment cost.
⚡ 300 Free Units / Month Target
The scheme aims to eliminate electricity bills up to 300 units per month. A 3 kW setup produces ~360 units per month, completely wiping out typical electricity bills of ₹2,500 to ₹3,500.
3 kW System Equipment Specifications
| Component | Typical Specification | Warranty |
|---|---|---|
| Solar Panels | 6 x 540W or 550W Mono PERC / Bi-facial DCR Modules | 25-Year Performance Warranty |
| Grid-Tie Inverter | 3 kW Single Phase On-Grid String Inverter (WiFi enabled) | 5 to 10-Year Warranty |
| Mounting Structure | Hot-Dip Galvanized Iron (GI) or Anodized Aluminium (wind rating 150 km/h) | 15-Year Structural Warranty |
| Net Meter | Bi-directional Smart Meter approved by DISCOM | DISCOM Standard |