About
Off-Grid PV Calculator
About Off-Grid PV Calculator
Design and calculate your off-grid photovoltaic solar system with this comprehensive calculator.
Features
• 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
Developer
Developer: Milan Ligo
Email: milan.ligo@gmail.com
This application is developed as a tool to help individuals and professionals design off-grid photovoltaic systems. If you have questions, suggestions, or feedback, please don't hesitate to contact me.
Version
Current version: 1.2.5
I continuously work on improving the application and adding new features. Stay tuned for updates!
Support & Feedback
I value your feedback and am here to help:
- For questions or support, contact me at milan.ligo@gmail.com
- For privacy concerns, please review my Privacy Policy
- Report bugs or suggest features - I'm always looking to improve!