3 kW Rooftop Solar System for Home
A 3 kW rooftop solar system for home is suitable for households with moderate electricity consumption. It can help power lights, fans, televisions, refrigerators, washing machines, computers, and other common appliances while reducing dependence on grid electricity.
EKA Synergy Solar provides complete residential solar solutions, including site survey, system design, installation, subsidy assistance, net-metering support, commissioning, and after-sales service.
Who Should Choose a 10 kW Solar System?
A load assessment and site survey help determine whether 10 kW is the right capacity.A 10 kW solar system can be suitable for:
Homeowners looking for long-term electricity savings
Large independent houses, villas, and farmhouses
Properties with sufficient shadow-free roof space
Homes with high monthly electricity consumption
Families using multiple air conditioners
Homes planning EV charging
3 kW Solar System Cost
The 3 kW solar system cost depends on system type, panel and inverter selection, battery requirement, mounting structure, electrical work, and installation conditions.
- On-Grid Solar System: ₹1.20 – ₹1.50 Lakh
- Off-Grid Solar System: ₹1.60 – ₹1.80 Lakh
- Hybrid Solar System: ₹1.70 – ₹2.00 Lakh
Prices are indicative and may vary according to equipment, battery capacity, location, taxes, and installation requirements.
3 kW Solar System Generation
Actual generation depends on location, sunlight, shading, weather, orientation, and system efficiency.
Under suitable conditions, a 3 kW solar system may generate approximately:
- Daily: 12–15 units
- Monthly: 360–450 units
- Annual: 4,200–5,400 units
Government Subsidy for 3 kW Solar System
Eligible residential consumers can receive subsidy under the PM Surya Ghar: Muft Bijli Yojana. The current Central subsidy structure is:
- First 2 kW: ₹30,000 per kW
- Additional 1 kW: ₹18,000
- Maximum subsidy for 3 kW: ₹78,000
A 3 kW residential rooftop solar system can therefore qualify for subsidy up to ₹78,000, subject to scheme eligibility and applicable conditions. No additional Central subsidy is provided for rooftop capacity beyond 3 kW. EKA Synergy Solar can assist with subsidy documentation, registration, net-metering, and related procedures.
3 kW Solar System Roof Area
A 3 kW rooftop solar system may require approximately 250–350 sq. ft. of usable shadow-free roof space. The actual requirement depends on:
- Solar panel wattage
- Roof layout
- Shading
- Mounting structure
- Maintenance clearance
RCC, metal-sheet, and suitable tiled roofs can be considered after site assessment.
Technical Specifications
| Specification | Typical Details |
|---|---|
| Capacity | 3 kWp |
| Solar Panels | Depends on module wattage |
| Inverter | Around 3 kW |
| Daily Generation | 12–15 units |
| Roof Area | Approx. 250–350 sq. ft. |
| Panel Life | 25+ years* |
Benefits of a 3 kW Rooftop Solar System
Get up to ₹78,000 Central subsidy if eligible
Suitable for common household appliances
Reduce household electricity bills
Add battery backup with hybrid systems
Generate clean electricity at home
Use net metering where applicable
Low routine maintenance
Why Choose EKA Synergy Solar?
Quality Installation
Suitable solar panels, inverters, mounting structures, earthing, and electrical protection.
Subsidy & Net-Metering Assistance
Support with applicable 3 kW rooftop solar subsidy, documentation, and net-metering procedures.
Customized System Design
System planning based on electricity consumption, roof space, budget, and backup requirements.
After-Sales Support
Assistance with monitoring, maintenance, cleaning, and troubleshooting.
Complete Solar Support
From site survey and system design to installation and commissioning.
Frequently Asked Questions About 3 kW Solar Systems
1. How much electricity does a 3 kW solar system generate per day?
Approximately 12–15 units per day under suitable conditions.
2. What is the subsidy for a 3 kW solar system?
Eligible residential consumers can receive up to ₹78,000 Central subsidy under PM Surya Ghar, subject to prevailing scheme conditions.
3. How much does a 3 kW solar system cost after subsidy?
Based on an indicative on-grid price of ₹1.20–₹1.50 lakh, the effective project investment may reduce after the applicable subsidy. Final cost depends on the actual quotation and eligibility.
4. How many solar panels are required for 3 kW?
The number depends on the wattage of the selected modules. Higher-wattage panels require fewer modules.
5. How much roof area is required?
Approximately 250–350 sq. ft. of usable shadow-free rooftop area may be required.
6. Can a 3 kW solar system run an AC?
It may support an AC depending on its capacity, efficiency, solar generation, inverter rating, and other appliances operating at the same time.
7. Does a 3 kW solar system work during a power cut?
A standard on-grid system normally shuts down during a grid outage. A hybrid or off-grid system with batteries is required for backup.
8. Is a battery required for a 3 kW system?
No. Batteries are not required for a standard on-grid installation.
9. Is 3 kW solar enough for a home?
It can be suitable for households with moderate electricity consumption and sufficient rooftop area. Your electricity bills and load should be reviewed before selecting capacity.