Solar Installation Calculator

Calculate complete solar system installation cost including all components and services

System Configuration

Solar panel system capacity in kilowatts
Config: 5kW grid-tied, RCC, metro
Cost per watt: ₹66.6 | Total: ₹3,72,960

Cost Breakdown

Solar Panels (5kW @ ₹38/W):1,90,000
Inverter (grid-tied):40,000
Mounting Structure (rcc):40,000
Wiring & Accessories:23,000
Installation (metro):40,000

Total Investment

Subtotal (Before GST):3,33,000
GST (12%):39,960
Grand Total:3,72,960
Cost per Watt
66.6/W

System Specifications

System Capacity
5 kW
System Type
grid tied
Roof Type
rcc
Location
metro

Cost Distribution

Component-wise cost breakdown for 5kW solar system

Quick Summary

System Size:5 kW
System Type:grid tied
Installation:metro location
Cost per Watt:66.6
GST (12%):39,960
Total Investment:3,72,960

How Solar Installation Cost Works

Equipment Costs

Solar Panels:1,90,000 (5kW × 1000W × ₹38/W)

Inverter:40,000 (grid-tied type at different rates)

Total equipment: ₹2,30,000

Installation & Structure

Mounting Structure: ₹40,000 (rcc type)

Installation: ₹40,000 (metro rates)

Wiring & Accessories: ₹23,000 (10% of equipment cost)

Final Calculation

Subtotal: ₹3,33,000 + GST (12%): ₹39,960 = ₹3,72,960

Cost per watt: ₹3,72,960 ÷ 5000W = ₹66.6/W

Cost Variations

Costs vary by location, roof type, and system configuration. Ground mounting and off-grid systems cost more due to complexity.

Metro installation: ₹8K/kW | Rural: ₹4K/kW | RCC roof: ₹8K/kW | Ground mount: ₹15K/kW

Installation Process & Tips

Installation Steps:

  • Site Survey: Roof assessment and shading analysis
  • Design: System layout and component selection
  • Permits: Electricity board approvals
  • Installation: Mounting, wiring, and commissioning

Cost Optimization:

  • • Choose appropriate system type for your needs
  • • Consider local installation rates
  • • Compare quotes from multiple vendors
  • • Check for government subsidies and incentives

Your 5kW System Estimate:

System: Grid-tied
Location: Metro
Roof: RCC
Cost/W: ₹66.6
Before GST: ₹3,33,000
Total: ₹3,72,960

The Solar Installation Cost Calculator gives homeowners and businesses in India a detailed, itemized estimate of what a rooftop solar system will cost to install, covering panels, inverter, battery (if applicable), mounting structure, wiring, labour and GST — useful for budgeting before requesting vendor quotes.

Solar Installation Cost Calculator - FAQs

What's included in the total solar installation cost?

The estimate covers solar panels, inverter, battery (for off-grid/hybrid systems), mounting structure, wiring and accessories (10% of equipment cost), installation labour, and 12% GST on solar systems.

Why does roof type affect the cost?

Mounting structure costs vary by roof — RCC roofs are cheapest to mount on (around ₹8,000/kW) while ground-mounted systems need more structural work (around ₹15,000/kW).

Why does my city or location change the price?

Installation labour rates differ by location — metro cities charge more (around ₹8,000/kW) than rural areas (around ₹4,000/kW) due to differences in labour and logistics costs.

Does this estimate include the government subsidy?

No, this calculator shows the gross installation cost before any subsidy. Use the Solar Subsidy Calculator to see your net cost after PM Surya Ghar Yojana and state incentives.

How accurate is the ₹38/watt panel price used here?

Panel and component prices fluctuate with market conditions and technology, and subsidy or GST rules can also change over time. Treat this as a ballpark estimate and get vendor quotes for an exact price.