Build a Solar Irradiance to Power Estimator that Reveals Real Solar Panel Performance with Arduino Uno

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Ever wondered how much power a solar panel can generate just by looking at the sunlight? This kit lets you build a device that reads light intensity in lux using a BH1750 sensor, converts it to solar irradiance in watts per square meter (W/m²), then compares that estimate with the real power output of a 6V solar panel measured by an INA219 sensor. You’ll see firsthand the gap between theory and actual performance—and understand what really drives solar energy.

What You'll Build

A compact module that calculates expected solar power from ambient light and instantly displays both estimated and real power values on a 0.96-inch OLED screen. Use it to test how clouds, shading, and tilt angle affect panel output—making it an ideal demonstrator for science fair exhibits or classroom curiosity. The whole setup fits on one breadboard and runs off a 9V battery.

What You'll Learn

• How to use the BH1750 digital light sensor to measure illuminance precisely
• Converting lux readings to W/m² using the standard solar spectrum conversion
• Measuring DC voltage, current, and power with a high-side INA219 sensor
• Comparing theoretical solar power estimates with real-world panel output to understand efficiency losses

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Young explorers aged 5–15 who want to learn solar energy through hands-on building. Perfect for CBSE Class 11–12 physics projects, ATL tinkering labs, and B.Tech ECE/EEE students exploring sensor integration. Even first-timers can succeed—the AI companion walks you through wiring and code without any prior experience.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.