# RenuSolarVolt

> RenuSolarVolt is a web-based solar panel system sizing tool that helps homeowners, businesses, and communities anywhere in the world estimate and design off-grid solar power systems using real satellite solar irradiance data.

## Key Features

- Multi-step wizard: Location → Building Type → Appliances → Usage Hours → System Recommendation
- Uses real satellite solar irradiance data for accurate peak sun hours at any location worldwide
- Calculates PV array size, battery bank (lithium or lead-acid), inverter, and charge controller specs
- Proven solar engineering methodology with worst-month sizing
- Generates detailed PDF reports with equipment specifications and cost estimates
- Supports English, French, and Spanish
- Works offline as a Progressive Web App (PWA)
- Designed for low-bandwidth environments

## How It Works

1. User enters their location (geolocation or city search) — the app fetches solar irradiance data
2. User selects building type (home, shop, clinic, school, worship, market)
3. User selects appliances and quantities with customizable wattage
4. User sets daily usage hours per appliance
5. App calculates complete off-grid solar system: panels, batteries, inverter, charge controller, cabling, and protection devices
6. User can download a professional PDF report or share via WhatsApp

## Technical Details

- Solar data source: satellite-measured global horizontal irradiance for any location worldwide
- Sizing methodology: accounts for system efficiency losses (inverter 93%, wiring 3%, heat derating 12%, dust 5%)
- Battery options: Lithium LiFePO4 (80% DoD, 90% efficiency) or Lead-Acid (50% DoD, 80% efficiency)
- Autonomy options: 12 hours, 1 day, or 2 days backup
- Inverter sizing: peak load + 25% safety margin, pure sine wave
- Tilt angle: optimized based on latitude
- DC bus voltage: auto-selected based on system size (12V/24V/48V)
- Balance of system: cable sizing per IEC 60364/62548, protection devices, surge protection, earthing

## Coverage

- Works for any location worldwide with satellite solar data coverage
- Voltage standards: 220-240V/50Hz and 110-120V/60Hz regions supported
- Adapts panel tilt angle, system voltage, and cost estimates based on user location

## Pages

- [Solar Sizing Tool](https://renusolarvolt.com/): Main wizard application
- [About](https://renusolarvolt.com/about): Mission, methodology, and what makes us different
- [Contact](https://renusolarvolt.com/contact): Get connected with solar equipment suppliers and installers

## Optional

- [Sitemap](https://renusolarvolt.com/sitemap.xml): Full sitemap for indexing