This paper will describe how to create models of solar energy generation tools by utilizing solar panels. The engineering product is a solar panel car. This energy-saving car is of course because it does not use batteries to run it. How to make it easy. For this toy car project is not programmed by the computer, so it is really manual and rely on sunlight to move the car.

Tools and materials needed:

• Solar panels.
• Ice cream or plastic bottled water bottles.
• 4 motors and 4 wheels (if no 4 enough 2 wheels and one more substitute for the third wheel).
• The bread board (optional).

How to make

• Make a small hole in the ice cream box cover. Adjust the hole position with the (+) (-) axis in the solar panel. Since the (+) (-) axis to be used in this example is centered then the hole placement is also adjusted in the center of the ice cream box.

• Glue the solar panel on the ice cream case cover by double tape. Paste on the edge of the solar panel.

• Connect the cable to the (+) axis (-) in the solar panel by soldering it.

• Next make a hole or drill on both sides of the ice cream box to put the wheels of the car. Connect the wheel with the motor.

• Connect the cable according to the rules, (+) with (+), (-) with (-). Cabling can also be observed on toy cars that use batteries. Here we use bread board only to avoid soldering process. So, if you want to solder also not pp. Or can also see the series of electronics below.

• For those who only use 2 wheels use other alternative materials for the third wheel. This third wheel serves to balance the position of the car.

• Put it in the sun. So your solar panel toy car is ready to run.

The working principle of solar panel car
The solar panel captures and absorbs direct sunlight which is then used to run the car.

Solar panels do not store energy in sunlight so if suddenly the sky is overcast or solar panels do not get sunlight then the solar panel toy car above can not run. To get around this we can add batteries or batteries to store sunlight so that toy cars can still be played even if not get sunlight.

Car solar panels are an environmentally friendly future technology as well as solutions to reduce fuel consumption. Why environmentally friendly? Because the utilization of renewable energy sources (such as water, wind, solar, biomass / biogas) has low exhaust emissions that do not cause pollution.