Your Smart Solar Planning Tool: Calculate Your Needs in Minutes

Advanced Solar System Calculator

Precisely calculate solar requirements for any location with comprehensive technical options

IMPORTANT: This calculator provides estimates only. Actual requirements may vary based on specific conditions. Always consult a solar professional before making decisions.

Calculate Your Solar Requirements

Basic Information

Project Name

Country United States (USD) India (INR) United Kingdom (GBP) Germany (EUR) Australia (AUD) Canada (CAD) Japan (JPY) UAE (AED) South Africa (ZAR) Brazil (BRL)

Your Location Rajasthan Desert, India North India Mumbai, India Kolkata, India Bangalore, India California, USA New York, USA Toronto, Canada London, UK Berlin, Germany Madrid, Spain Tokyo, Japan Bangkok, Thailand Singapore Sydney, Australia Perth, Australia Dubai, UAE Riyadh, Saudi Arabia Cairo, Egypt Nairobi, Kenya

Monthly Electricity Usage (kWh)

System Configuration

System Type On-Grid Off-Grid Hybrid Behind the Meter

Installation Type Rooftop Ground Mount Solar Carport Tracking System

Include Battery Storage

Panel Type Standard Mono High-Efficiency Bifacial TOPCon Ultra-High Premium Advanced

Panel Wattage (W)

Inverter Capacity (kW)

Advanced Configuration

Number of Inverters 1 2 3 4 5

Number of Panels

Tilt Angle (degrees)

System Voltage 48V (Off-grid) 120V (US Standard) 230V (EU Standard) 240V (Grid-tied) 415V (3-Phase) 800V (Commercial)

Module Voc (V)

Inverter Min Voltage (V)

Inverter Max Voltage (V)

Cable Distance - Panels to Inverter (m)

Cable Distance - Inverter to Grid (m)

Minimum Expected Temperature (°C)

System Efficiency (%)

85%

Autonomy Days (Off-grid)

Your Solar Solution

Solar Panel Capacity

7.2 kW

12 panels TOPCon (620W)

Inverter Specifications

6.5 kW

1 inverter 240V System

Space Requirements

35 m(sq) (376 ft(sq))

Approx. 7m X 5m Rooftop Installation

System Configuration

6 panels per string

2 strings Voltage: 200-350V

Cable Sizing

String Wiring: 4 mm² (12 AWG)

After DCDB: 6 mm² (10 AWG)

AC Cable: 10 mm² (8 AWG)

For 15m DC run, 5m AC run, <3% voltage drop

Battery Storage

10 kWh

Lithium 2 days autonomy

Energy Production

32.4 kWh/day

11,826 kWh/year

Financial Analysis

System Cost

₹418,000 INR

Annual Savings

₹56,064/year

Payback Period

7.5 years

ROI (25 years)

₹1,400,000

Based on current electricity rates and 30% government subsidy

Environmental Impact

186 tons CO₂

Equivalent to 2,790 trees

25-Year Impact:

Equivalent to removing 40 cars from the road for a year

Understanding Solar Systems

For Homeowners

For Engineers

Global Considerations

Residential Systems

Typical home systems range from 3-10kW. A 6kW system can power an average 3-bedroom home, reducing electricity bills by 60-90% depending on location and usage.

Financial Benefits

Solar panels typically pay for themselves in 5-8 years through electricity savings. Many countries offer tax incentives and subsidies to reduce upfront costs.

Environmental Impact

A 6kW solar system prevents about 7.5 tons of CO₂ emissions annually - equivalent to planting 112 trees each year.

Maintenance Tips

Solar systems require minimal maintenance. Clean panels 2-4 times yearly and monitor system performance through manufacturer apps.

System Sizing

Calculate DC system size: (Daily kWh usage) ÷ (Peak sun hours) ÷ (System efficiency). Add 20% buffer for degradation and seasonal variations.

Voltage Considerations

Higher system voltages (800V) reduce current and allow smaller conductors. Ensure VOC stays within inverter limits, especially in cold temperatures.

Cable Sizing

Calculate voltage drop: V_drop = (2 × L × I × R) ÷ 1000. Limit to <3% for DC, <2% for AC. Consider temperature derating factors.

Advanced Technologies

TOPCon and HJT cells offer 22-24% efficiency. Bifacial panels gain 5-20% additional yield from ground reflection. Optimize tilt for latitude ±15° seasonally.

Regional Variations

Peak sun hours range from 3.5 (UK) to 6.5 (Arizona). System sizing must account for local climate, electricity rates, and regulatory requirements.

Grid Compatibility

Voltage standards vary: 120V/240V (North America), 230V (Europe), 220V (Asia). Inverters must comply with local grid connection requirements.

Financial Incentives

US: 30% federal tax credit. Germany: Feed-in tariffs. Australia: STCs. India: Central and state subsidies. Brazil: Net metering with tax exemptions.

Climate Considerations

Desert: Optimize for high temperatures and dust. Tropical: Account for high humidity and rainfall. Temperate: Design for lower light conditions.

Advanced Solar Calculator © | This tool provides estimates only. Consult a professional solar installer for detailed assessment.

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