Introduction
This working model demonstrates how solar and wind energy can be used to power a house, a street light, and a windmill, promoting the use of renewable energy for a sustainable future. It highlights the practical applications of solar panels and wind turbines in daily life.
Materials Required
- Cardboard (for house and street light pole)
- Small solar panels (for house and street light)
- Mini DC motor with fan blades (for windmill)
- LED lights (to show electricity generation)
- Battery (optional, for energy storage)
- Wires & connectors
- Glue, tape, scissors, and color paper for decoration
Model Setup
- Solar House Construction:
- Build a small house using cardboard.
- Place a solar panel on the roof and connect it to an LED light inside the house.
- When exposed to sunlight (or a flashlight), the LED will glow, showing power generation.
- Solar Street Light:
- Create a street light pole using cardboard or a straw.
- Attach a solar panel on top and connect it to a small LED light to simulate a solar-powered street light.
- When light falls on the panel, the street light will glow.
- Windmill Demonstration:
- Attach fan blades to a DC motor and place it on a stand (windmill tower).
- When you blow air (or use a small fan), the windmill will rotate and generate electricity.
- This can be used to power an LED light or store energy in a small battery.
- Energy Storage (Optional):
- A small rechargeable battery can be connected to store the energy from solar panels and windmills.
- This will allow the LEDs to remain on even when sunlight or wind is not available.
Key Learning Points:
- Solar panels convert sunlight into electricity for homes and streetlights.
- Windmills generate electricity from wind energy.
- Both solar and wind energy can be stored in batteries for later use.
- Renewable energy is a sustainable and eco-friendly solution to power needs.