Off-Grid PV Calculator

Design and calculate your off-grid photovoltaic solar system with this comprehensive calculator.

• Energy Consumption

Calculate your daily energy needs by entering device power consumption (watts) and operating hours, or directly input your daily energy requirement.

• PV Array Configuration

Configure your solar panel system:

- Get sun hours for your location using GPS or map selection (PRO version)

- Calculate required PV power based on your energy needs

- Configure panel specifications (power, voltage, current)

- Choose connection type (series, parallel, or series-parallel)

- Access detailed solar data (PRO version)

- View monthly energy production charts (PRO version)

- View recommended parameters for solar charge controller (MPPT)

• Battery System

Calculate battery capacity needed:

- Set system voltage (12V, 24V, or 48V)

- Configure autonomous days (sunless days)

- Adjust depth of discharge

- Calculate required capacity in Wh and Ah

- Configure individual battery specifications

- View recommended parameters for inverter

• System Costs & Return (PRO version)

Calculate total system costs and investment return:

- Cost per panel watt

- Cost per battery Wh

- Regulator and inverter costs

- Installation materials

- Electricity price comparison

- Return on investment analysis

Key features

✓ Step-by-step design wizard

✓ Solar data integration

✓ Cost analysis and ROI calculations (PRO version)

✓ PDF export of system design (PRO version)

✓ Works offline (FREE version)

✓ Data sync across devices using Google account

PRO version

PRO features are available via in-app purchase. Upgrade to PRO for advanced features:

• Detailed solar data

• Monthly energy production charts

• Complete cost analysis

• PDF export of system design

FREE features

The FREE version includes:

• Basic energy consumption calculations

• PV array configuration

• Battery capacity calculations

• System design results

• Offline functionality

Perfect for:

• Homeowners planning off-grid solar installations

• Engineers and installers

• Students learning about solar systems

• Anyone interested in solar energy calculations

Start designing your off-grid solar system today!