“This is a combined renewable energy model. On the left, hydroelectric power is generated when water flows and turns the turbine. In the middle, wind energy converts kinetic energy of air into electricity.
On the right, solar energy is captured by solar panels to power homes.All these sources are eco-friendly, renewable, and sustainable.
Here’s a combined renewable energy working model idea showing Hydroelectricity, Wind Energy, and Solar Energy — perfect for a science exhibition.
It’s colorful, educational, and interactive using cardboard, mini motors, LED light
1. Hydroelectric Power
- Show a water tank (plastic bottle) on a cardboard mountain.
- Water flows down through a pipe or syringe tube.
- Hits a small turbine (fan on DC motor) which turns and lights up an LED.
- Can simulate water manually or using a syringe.
2. Wind Power
- Use a fan blade connected to a DC motor fixed on a paper pipe or stick.
- Blow air using mouth or a hand fan.
- Spinning blades turn the motor shaft generating enough energy to light an LED.
3. Solar Power
- Place a mini solar panel facing upward.
- When exposed to sunlight or a torchlight, it powers an LED.
- Mount on a cardboard house roof to show rooftop solar.