Projects / Electrical / Electrical project 75

DC Nano-Grid for Lighting: Solar, Battery and LED Loads

Approx. component budget: Rs. 6,000 - 10,000

Objective

Show how a DC-only system avoids conversion losses and compare it with an AC inverter system.

What you will build

A 12 V or 24 V DC system with a solar panel, charge controller, battery and LED lighting loads, with energy monitoring and priority control.

Results you can expect

• Energy delivered to LEDs per day on DC vs AC (through an inverter)
• Conversion loss percentage
• Battery state over 3 days
• And cost estimate per household

What you will learn

DC distribution, system efficiency and solar home system design.

Tools and notes

Solar panel, MPPT controller, battery, LED strips, INA219, ESP32. Use proper DC fuses and wire sizes.

Resume points from this project

• Built and tested DC Nano-Grid for Lighting: Solar, Battery and LED Loads; objective: show how a DC-only system avoids conversion losses and compare it with an AC inverter system.
• Measured and analysed energy delivered to LEDs per day on DC vs AC (through an inverter) and conversion loss percentage; wrote the report and presented the results in a viva. Add your own numbers: [x].

Replace [x] with your own measured results. Write only what you really did.

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