Building a Solar-Powered RC Car: A Step-by-Step Guide

Building a Solar-Powered RC Car: A Step-by-Step Guide

Remote Control (RC) cars have always been a source of fun for people of all ages. But imagine having an RC car that runs on solar power! It not only adds a unique twist to this hobby but also offers environmental benefits. The idea of building a solar powered RC car might sound intimidating, but it is not as complicated as it sounds. With a little bit of research, some essential tools, and a few instructions, it is possible to create your very own solar powered RC car. Moreover, learning to build one will teach you about renewable energy, electronic components such as motors, batteries, solar panels, and how they work together. This article will offer step-by-step instructions on how to build a solar powered RC car as well as tips on how to troubleshoot common issues. So, let’s dive in and get started on building your own solar powered RC car!

Research and Planning

Before starting the project, it is important to have a clear understanding of the components needed for building a solar powered RC car. To build a successful model, it is necessary to plan and do research. Here are some essential things to consider:

  • Choose the right motor, battery, and controller depending on the size and weight of the car
  • Select the ideal solar panel based on power output, size, and weight
  • Research various solar RC car kits and products available in the market

There are numerous websites, forums and YouTube channels available that provide useful information on building a solar powered RC car. Some good resources to check out are:


These resources have detailed instructions, technical information, and various kits and products that could be helpful when building a solar powered RC car.

Can you make a solar-powered car?

Yes, it is possible to make a solar-powered car. In fact, there are already some solar-powered cars on the market today, such as the Lightyear One and the Sono Motors Sion. Here are a few things to keep in mind if you want to make your own solar car:

  • You will need a large surface area to mount solar panels on your car to produce enough electricity.
  • A lightweight and aerodynamic car design will help maximize energy efficiency.
  • Battery technology will be crucial for storing energy from the solar panels and powering the car’s motor.

If you’re interested in learning more, there are many online resources and guides available on how to build your own solar car.

Building the Frame

The frame is the foundation of any RC car and building it accurately is crucial to the success of the project. Below are some tips on building the frame:

Materials Required To Do
Metal rods or aluminum tubing Measure and cut the rods or tubes to required lengths
Nuts, bolts, and washers Secure the rods or tubes together using nuts, bolts and washers
Metal or plastic plates Attach the plates to the frame to support the solar panel and other components

Note: It is possible to buy pre-made frames for solar powered RC cars as well, but building one from scratch can be more rewarding and cheaper.

Interesting fact: The construction of the frame depends on the type of RC car, and it can differ significantly from car to car. A durable, lightweight and aerodynamic frame is the goal when building a solar powered RC car.

Don’t forget to wear protective equipment when working with metal cutting and welding tools such as goggles, gloves, and protective jackets.

There are many instructional videos and articles available to help with building the frame, such as the following:

Installing the Solar Panel

Proper installation of the solar panel is crucial for the efficiency of the car. Follow the steps mentioned below to get the most out of your solar panel:

  • Choose the right direction to install the solar panel
  • Use solid adhesive to attach the panel to the car (eg. Araldite, Gorilla glue or double-sided tape)
  • Test the voltage of the solar panel before installing it to ensure it is in working condition

By testing the solar panel beforehand, it is possible to ensure the panel is outputting the correct voltage and current. Inaccurate performance may be caused by the wrong angle, improper connection, or even a damaged solar panel.

There are many options for where to purchase solar panels, but it is essential to buy high-quality panels that can deliver the most power. Below are some online websites where you can purchase solar panels:

Websites to buy solar panels

Website Features Specializes in selling solar panels for hobbyists Provides a comprehensive resource for solar panels of high quality and many types Provides a range of suppliers all in one place to compare and choose from

How solar panels should be placed?

When installing solar panels, their placement is critical for optimal energy generation. Here are some factors to consider:

  • Orientation: solar panels should face to the south in the northern hemisphere, and face to the north in the southern hemisphere, for maximum sunlight exposure.
  • Angle: solar panels should be tilted at the angle that corresponds to the latitude of your location for maximum sun exposure.
  • Shading: avoid placing the solar panels in areas with shading from trees, buildings or other obstructions that can interfere with sunlight exposure.

For more detailed information about solar panel placement, check out websites of solar panel manufacturers or suppliers such as SunPower or SolarWorld.

Assembling the Car

Now that you’ve built the frame and installed the solar panel, it’s time to assemble the car. Follow these steps to assemble your solar powered RC car:

  • Mount the motor onto the frame
  • Connect the battery to the motor
  • Attach the controller to the battery and motor
  • Connect the solar panel to the controller and battery
  • Test the car’s performance to ensure all the components are functioning as expected

It’s essential to be careful when connecting the different electronic components to ensure proper and safe operation of the car. If you have no experience with electronics, it may be best to ask for help from someone more experienced.

In addition to the materials we’ve already discussed in previous sections, you may need additional materials for assembling your car, such as wires, connectors, and a charger. Below are some online websites that sell different components necessary for building solar powered RC cars:

Websites to buy components for a solar powered RC car

Website Features
Amazon Provides a wide range of materials for solar powered RC cars
RobotShop Has a good selection of motors, batteries and controllers specific for RC cars
SparkFun Provides electronic components, solar panels and kits for building solar powered devices

By following these tips and using the proper materials, you can successfully build and assemble your solar powered RC car. Once you’ve assembled your car, it’s time to take it for a spin and enjoy the benefits of clean, green energy!

How to Build a Solar Car?

Building a solar car is an innovative way to incorporate sustainable design into transportation. Here are some basic steps to get you started:

  • Design the car: Create a basic design using CAD software or sketch it on paper.
  • Choose the power source: Select high-efficiency solar cells that will collect sunlight and transform it into energy for your car.
  • Sizing the battery: Calculate what size battery you need by multiplying the power output of your solar cells by the hours of sunlight available per day.
  • Build the frame: Use lightweight but sturdy materials to create a frame that can support the solar cells and battery.
  • Wire and connect: Connect the cells to the battery, ensuring that the wiring is safe and secure.
  • Add the wheels: Attach wheels to your car’s frame and add steering mechanism.
  • Test and adjust: Test your car and adjust anything that is not functioning properly.

If you’re interested in learning more about building a solar car, resources like Solar Electric Vehicle Society or Solar Car Team can offer guidance and additional information.


Even with the best planning and execution, it’s possible to experience problems when building your solar powered RC car. Here are some potential issues and how to troubleshoot them:

  • The car isn’t moving: check the battery voltage and charge it if necessary. Also, check the motor connections and wiring for any issues
  • The solar panel isn’t producing enough power: check the angle and position of the panel. Also, ensure that the panel is receiving enough sunlight
  • The car is slow: check the motor and battery specs. It might need a more powerful motor or larger battery capacity
  • The car is too heavy: reassess the frame construction, materials and motor power. You may need to make adjustments to lighten the car’s weight

If you’re still having issues, the following online forums can be helpful resources to resolve problems:

Online Forums for Solar Powered RC Car enthusiasts

Website Features
RC Groups Active online community forum, with user groups offering advice on RC car builds and troubleshooting
Instructables Offers a variety of detailed build instructions, forums, and groups for solar powered devices enthusiasts
DIY Electric Car Online specialized forum, with users sharing information on EV components, tips on solar energy and alternative fuel vehicle systems and projects

Even if you experience problems, don’t give up! Building a solar powered RC car is an exciting project that requires patience, technical knowledge, and a can-do attitude. When you finally do get it up and running, you’ll be thrilled with the results!

Is there a solar-powered car?

Yes, there are solar-powered cars available. However, they are not yet mainstream and are mostly in the prototype or experimental phase. Some examples are:

  • The Lightyear One, a solar-powered electric car that can reportedly travel up to 450 miles on a single charge.
  • The Sion by Sono Motors, another solar-powered electric car that has solar panels integrated into the body of the car.
  • The Stella Lux, a solar-powered family car developed by students at the Eindhoven University of Technology in the Netherlands.

It is worth noting that while solar-powered cars have potential environmental benefits, they still face challenges such as limited range and high cost. Consult the manufacturers’ websites for more information on available models and pricing.


Building a solar-powered RC car is an amazing project that offers numerous benefits. Not only will you enjoy the fun of a remote-controlled car, but you also will learn about solar energy and electrical engineering. Moreover, you’ll have a car that is environmentally friendly and that can run without needing to replace batteries constantly or needing electricity from the grid.

When building the car, ensure that you have done sufficient research and planning. Although it can seem daunting at first, with patience and perseverance, you’ll be able to create something extraordinary. And, with so many online communities available to provide guidance and help troubleshoot any problems, you’ll be able to get any support you need.

So, why not take the plunge and start building your solar-powered RC car today? Whether you’re an experienced builder or a beginner, this project is a fun, cheap and rewarding way to explore the role of renewable energy in our lives.