Building a portable solar generator and keeping it mobile isn’t as hard as it seems. With a few ready-made tools and materials, you can assemble a compact kit suitable for use anywhere. Drawing on guidance from popular maker resources, here are practical steps to turn this idea into a reality.
In this project, parts of a child bike trailer have been repurposed as the chassis, though other similar items could work just as well. The goal is a sturdy, light frame that can bear the weight of a small solar panel and the related electrical components. The approach prioritizes affordability, with a complete setup typically costing between 400 and 700 euros, depending on the chosen components and suppliers.
Necessary materials
- Trailer: Any similar transport trailer available at home can serve as the base. The body should be removed, and the remaining frame connected to a new platform using screws for solid support. The goal is a stable structure that can securely hold the solar module and power electronics.
- Solar module: A 17-volt, 80-watt panel was selected for this project, providing a balance between portability and output.
- Inverter: A 400-watt vehicle inverter is used to convert 12-volt DC from the battery into 120-volt AC usable for small devices.
- Charge controller: Nearly any 12-volt charge controller helps protect the battery by regulating charging current and voltage.
- Battery: A 12-volt battery is required; a 24-volt option is possible, but it must match the panel and inverter specifications.
- Mounting materials: Steel props, supports, nuts, screws, washers, and electrical cabling are needed to secure components and route wiring safely.
Steps to build the generator
1.- Build the trailer
Stability is essential. The frame must be solid so the solar panel remains firmly attached. The wood should be fixed to the steel frame with screws, and shelf supports or similar brackets can hold the wood upright. A stable base is critical because all electrical hardware will be mounted on the plank, and any movement could compromise connections.
To secure the solar panel, use components typically designed for this purpose. They can be purchased from specialist suppliers or sourced from standard hardware outlets. The choice of materials may depend on local availability and personal preference for reliability and ease of assembly.
Finally, a nylon strap buckle or any durable cord can hold the battery in place during movement.
2.- Electrical components and wiring.
For the electrical work, follow the manufacturer’s step-by-step instructions. A schematic is often used for mobile solar setups to guide the wiring path and ensure safe operation.
3.- Ready to use.
With the setup complete, the system is ready for use. It can provide power for camping trips, beach outings, or short excursions, keeping essential devices charged without needing to plug into a distant outlet. A well-built unit can save time and reduce the need to carry multiple adapters or extra batteries on the go.
The full instructions for this build can be found on the structural-focused resource referenced above.
……….
For further guidance, consult the environmental department guidance and local safety standards to ensure compliance with regulations and safe operation of portable solar gear.