Detailed Comparison: 3kW vs 5kW Rooftop Solar
Choosing between a 3kW and a 5kW rooftop solar system is the most frequent decision facing residential homeowners in Assam. Below is a comprehensive breakdown evaluating financial costs, government subsidies, roof area requirements, and APDCL bill savings.
| Feature | 3kW Solar System | 5kW Solar System |
|---|---|---|
| Target Property Size | Standard 2 to 3 BHK Home | Large 4+ BHK Home, Duplex, or Small Office |
| Gross Package Cost | ₹1,90,000 | ₹3,25,000 |
| PM Surya Ghar + Assam Subsidy | ₹1,30,800 (Maximum % benefit) | ₹1,30,800 (Capped max allowance) |
| Net Payable Cost | ₹59,200 | ₹1,94,200 |
| Required Roof Area | 250 – 300 sq ft | 400 – 500 sq ft |
| Monthly Generation | 330 – 380 Units (kWh) | 550 – 650 Units (kWh) |
| Monthly APDCL Bill Offset | Up to ₹2,800 – ₹3,200/month | Up to ₹4,800 – ₹5,500/month |
| Air Conditioner Capability | Runs 1 Inverter AC during daytime | Runs 2 to 3 Inverter ACs during daytime |
Our Technical Recommendation
Choose **3kW** if your monthly APDCL bill is under ₹3,500 and your terrace space is limited. Choose **5kW** if your monthly bill exceeds ₹4,000, you run multiple air conditioners, or you anticipate increasing power usage in coming years.
Next Step: Get a Free Site Survey
Send your APDCL bill copy and rooftop photos to Solar Assam via WhatsApp for a tailored quote and subsidy eligibility check.