3kW Rooftop Solar System Price in Assam (2026 Breakdown)
A 3kW on-grid rooftop solar system is the single most popular solar installation capacity for residential homes in Assam. Designed for households with monthly electricity bills ranging between ₹1,800 and ₹3,500, a 3kW system generates enough electricity to offset 80% to 100% of your power expenses under APDCL LT-Domestic tariffs.
3kW Solar System Financial & Subsidy Matrix
Homeowners in Assam benefit from dual subsidy support under the PM Surya Ghar Muft Bijli Yojana (Central Government Financial Assistance) combined with the Assam State Government top-up subsidy.
| Financial Parameter | Amount / Calculation |
|---|---|
| Indicative Gross Cost (3kW System) | ₹1,90,000 (Turnkey installation including panels, inverter & wiring) |
| Central PM Surya Ghar Subsidy (CFA) | ₹85,800 |
| Assam State Government Top-Up | ₹45,000 |
| Total Combined Subsidy | ₹1,30,800 |
| Effective Payable Cost After Subsidy | ₹59,200 |
| Estimated Monthly Generation | 330 – 380 Units (kWh) per month |
| Estimated Monthly Bill Savings | ₹2,300 – ₹3,000 per month |
| Payback Period | Approximately 1.8 to 2.2 years |
What Is Included in Solar Assam's 3kW Package?
- Solar Modules: 3,000W total capacity of ALMM and DCR compliant Mono PERC or TOPCon panels (Tata, Adani, or Waaree).
- On-Grid Solar Inverter: 3kW single-phase grid-tied inverter with built-in WiFi monitoring and anti-islanding safety protection.
- Structural Mounting: Hot-dip galvanized GI structure designed for RCC flat roof or leak-proof tin roof clamping.
- Protective Gear: ACDB & DCDB boxes, Surge Protection Devices (SPD), and triple-pit chemical earthing (< 5 Ohms).
- APDCL Net Metering: Complete documentation, site inspection support, and bi-directional net meter commissioning.
Roof Space & Feasibility for 3kW Solar
A 3kW system requires approximately **250 to 300 square feet** of shadow-free rooftop space facing South. It seamlessly powers 1 Inverter AC (1.5 Ton), refrigerator, water pump, TV, fans, and LED lighting during daylight hours.