SolarPowerNerd
Solar kits for kids range from snap-together robot builders for six-year-olds to circuit labs with multimeters that challenge teenagers. The biggest frustration parents report is buying a kit that is either too simple (finished in ten minutes, never touched again) or too complex (needs an adult to do most of the assembly).
The kits that work best teach something specific. A mini solar panels cell powering a motor shows energy conversion in real time.
A kit that turns a recycled soda can into a rover connects solar energy to recycling concepts. Dual-power kits with a battery backup let kids play indoors on cloudy days instead of shelving the project until the sun comes out.
These 10 kits cover ages 5 through 14 and range from single-build rovers to 20-configuration model sets.
Quick Comparison Chart
| # | Product | Our Rating | ||
|---|---|---|---|---|
| 1 |  |
Discovery Kids Solar Robot 12-in-1 Kit | ★★★★★ | Check Price |
| 2 |  |
Thames & Kosmos Solar Mechanics Kit | ★★★★★ | Check Price |
| 3 |  |
Solar Robot Kit 14-in-1 STEM Toy | ★★★★★ | Check Price |
| 4 |  |
Thames & Kosmos Physics Solar Workshop V2.0 | ★★★★☆ | Check Price |
| 5 |  |
Thames and Kosmos Solar Car Set | ★★★★☆ | Check Price |
| 6 |  |
4M Green Science Solar Rover | ★★★★☆ | Check Price |
| 7 |  |
OWI Super Solar Recycler | ★★★★☆ | Check Price |
| 8 |  |
Solar Lab 1.0 Electricity Learning Kit | ★★★★☆ | Check Price |
| 9 |  |
2Pepers Electric Motor Robotic Science Kit | ★★★★☆ | Check Price |
| 10 |  |
TEDCO 50-Foot Solar Balloon | ★★★★☆ | Check Price |
Kits That Actually Keep Kids Building
Build variety and replay value separated the winners here. The Discovery Kids 12-in-1 gives you 190 pieces across a dozen robot configurations, while the Thames & Kosmos Solar Mechanics kit offers 20 buildable models with a 60-page color manual.
Look for kits with dual power (solar plus battery backup) if your kid will use them indoors on rainy days. The 14-in-1 STEM kit even works on water, which keeps things interesting long after the first build.
1. Discovery Kids Solar Robot 12-in-1 Kit
Discovery Kids Solar Robot 12-in-1 Kit
A 190-piece STEM kit that lets kids build 12 different solar-powered robots, from walking creatures to rolling vehicles.
Pros
- 190 pieces for full customization
- 12 robot blueprints included
- Parts sized for small hands
- Encourages creative invention
Cons
- Requires bright direct sunlight
- Not ideal for very young kids
This solar kit is a whopping 190-piece set. That’s a lot of pieces for a lot of configurations.
In fact, Discovery Kids STEM 12-in-1 provides you with blueprints to create 12 different kinds of robots.
Everything you need is included inside the kit, all the moving parts and connectors are there.
With all these pieces, the kids can even invent their own robots using a variety of moving parts in the set. Their imagination is the only limit, whether they want to build a robot, a car, or whatever they set their minds to.
This is perfect for young inventors.
Of course, a solar panel is included in the kit, this is what’ll power the different creations your kids can make.
2. Thames & Kosmos Solar Mechanics Kit
Thames & Kosmos Solar Mechanics Kit
Build 20 different solar-powered models including cars, trucks, planes, and robots with this award-winning STEM kit.
Pros
- 20 buildable model configurations
- Full-color 60-page instruction manual
- Compatible with other Thames kits
- Includes photovoltaic cell and motor
Cons
- Many small parts to manage
- Solar panel needs direct light
You can build more than cars with this kit. There are 20 available models of cars, planes, robots and even trucks.
This is perfect for kids that get easily bored with their toys, since they can just swap the parts and construct a brand-new model, just from one kit.
A 60-page manual in full color is included in the set, so your kids can get hands on in the building of the kit.
And all the parts are compatible with other Thames & Kosmos physics and construction kits, so you can build with your other sets.
3. Solar Robot Kit 14-in-1 STEM Toy
Solar Robot Kit 14-in-1 STEM Toy
A 14-in-1 solar robot kit that builds walking, floating, and rolling creations, powered by the sun or an included AAA battery.
Pros
- Works on land and water
- Dual solar and battery power
- Durable ABS plastic parts
- Step-by-step blueprints included
Cons
- Battery not rechargeable
- Some builds need adult help
This kit has an awesome 231 pieces inside with 14 possible configurations, from a walking dog to a running beetle to a surf bot.
Each configuration can be easily disassembled to create another one, so you can try all of the possible robots, and maybe even create configurations of your own.
You can choose between the animal or automotive mode when you’re building your robot, for different moves.
The kids will also be introduced to hydraulics in a fun and exciting way because the robots are operated using hydraulic motions for their movements.
And all these configurations can be powered by the sun or the included battery for unlimited play.
4. Thames & Kosmos Physics Solar Workshop V2.0
Thames & Kosmos Physics Solar Workshop V2.0
A physics-focused kit that teaches how photovoltaic cells convert sunlight into electricity, with a buildable praying mantis robot.
Pros
- Deep dive into solar cell science
- Builds a moving mantis robot
- Battery backup for cloudy days
- Shows energy optimization concepts
Cons
- Content may challenge younger kids
- Only one main build
The Thames & Kosmos Physics Solar Workshop (V 2.0) Science Kit zeroes in on teaching the theory of photo-voltaic cells and how the energy of the sun is transformed into power.
All of that through a fun and transformative build. This kit will teach you how to build a praying mantis robot that moves just like an actual mantis.
And don’t worry about cloudy days, you can run the praying mantis you built through a battery.
5. Thames and Kosmos Solar Car Set
Thames and Kosmos Solar Car Set
Build a solar-electric race car and four additional models with dual solar and battery power for indoor or outdoor play.
Pros
- Works indoors with battery power
- Four configurations from car to helicopter
- Clear instructions for children
- Teaches solar cell energy conversion
Cons
- Fewer builds than larger kits
- Battery not included
Create a race car with the power of the sun with Thames and Kosmos Solar Car Set Science Kit.
This kit gives you the option to use it with either a battery or the solar panel included, so you don’t need to worry about using it indoors.
This is such an awesome feature because just imagine the possibilities. You can build this inside an apartment during winter and it will run.
Or maybe outside in the sun during the summer, the point is that you don’t have to choose.
It almost feels like getting two different sets all in one.
You can choose between four configurations, from a race car into a helicopter.
The assembly here is pretty straightforward and the instruction guides are clear enough for children.
6. 4M Green Science Solar Rover
4M Green Science Solar Rover
A DIY STEAM kit for ages 5 and up that turns a recycled soda can into a solar-powered rover, teaching kids about recycling and solar energy.
Pros
- Teaches recycling and solar energy
- Detailed instruction guide included
- All parts included in kit
- Great for summer outdoor play
Cons
- Only builds one rover
- Requires a soda can from home
This kit will give your kids everything they need to construct their very own rover.
The main body of the rover would be made out of a recycled soda can that would host the wheels and solar panel.
The kids would need to assemble all the parts correctly for the rover to work, which is all part of the fun.
This is an ideal build during a summer picnic when there’s a lot of empty soda cans available.
Don’t worry, a detailed instruction guide is included in the kit.
Once the rover is all set, all you need to do is take it out on a sunny day and watch the power of the sun make it run.
7. OWI Super Solar Recycler
OWI Super Solar Recycler
Turn old water bottles, cans, and CDs into solar-powered robots and boats with this eco-friendly recycling kit.
Pros
- Encourages recycling household items
- Six different robot configurations
- Easy-to-follow instructions
- About 30 minutes assembly time
Cons
- Recyclable materials not included
- Needs strong direct sunlight
Reuse, recycle and repurpose with OWI Super Solar Recycler. This kit encourages kids to be eco-friendly and recycle, all while they’re learning about renewable solar energy.
Inside is everything you need to turn trash into solar-powered robots. CDs can turn into racers, used water bottles can become solar boats, even soda cans can be turned into different kinds of robots.
The instructions included inside are pretty easy to follow. The assembly time should be around 30 minutes or maybe even less for older kids.
An ideal build for young kids during the summer because of how easy the instructions are, plus this would give them an opportunity to collect trash and turn them into robots.
8. Solar Lab 1.0 Electricity Learning Kit
Solar Lab 1.0 Electricity Learning Kit
An in-depth electricity learning kit that teaches how solar cells work, circuit building, and using a multimeter for voltage and current.
Pros
- Thorough photovoltaic education
- Teaches circuit building skills
- No assembly required to start
- Includes batteries for charger project
Cons
- Not colorful for young children
- More educational than play-focused
This is an excellent kit for older kids and teens. Solar Lab 1.0 Electricity Learning Kit teaches you all about how circuits work and how the power of the sun is transformed into energy for machines.
The instructions included are very thorough and informative, this makes it so much easier to learn about photo-voltaic electricity production, even on your own.
This kit really goes more in depth about the science of solar energy, and the best part is no assembly required.
In fact, it comes very highly recommended by other users. One note, the product inside is not colorful so remember that if you’re buying this for a very young kid.
But on the flip side, this means that this kit will be useful for adults to play with too, because of how in depth and interesting the learning process is.
9. 2Pepers Electric Motor Robotic Science Kit
2Pepers Electric Motor Robotic Science Kit
A 4-in-1 STEM kit with a bubble machine, graffiti robot, robotic car, and bicycle, designed for hands-on circuit learning.
Pros
- Four fun builds in one box
- Brightly colored, engaging parts
- Kid-sized screwdrivers included
- Detailed step-by-step manuals
Cons
- Requires AA batteries, not included
- Not purely solar powered
You can choose between four different kits here, including a bubble machine, graffiti robot, robotic car, and a fun bicycle.
This is a fun and exciting build for younger kids, with simple instructions and very colorful pieces.
This is a great gift to get young kids interested in solar energy and mechanical engineering, especially as their first ever build. The pieces are not intimidating, but still informative.
This kit will be right up their skill set. Simple, brightly colored, and the robots are fun to play with.
10. TEDCO 50-Foot Solar Balloon
TEDCO 50-Foot Solar Balloon
A 50-foot solar balloon that floats using heated air from the sun, teaching kids about atmospheric pressure and buoyancy.
Pros
- Teaches atmospheric science concepts
- Large size impresses groups of kids
- Reusable for multiple uses
- No batteries or tools needed
Cons
- Requires a sunny, calm day
- Not a building or robot kit
TEDCO 50-Foot Solar Balloon is a huge balloon that can be easily filled up with air, without a need for any inflation device. Simply open the balloon and capture the breeze to inflate it.
The warmth of the sun heats the balloon up and makes the air inside more buoyant, this makes it float like a kite. A great way for teaching kids about atmospheric pressures, Bernoulli’s Principle and Pascal’s Principle using solar heat.
You can explain the principles as you inflate the balloon and watch them be amazed by the results, and because it’s such a big product, one kit can be used by multiple children.
This is an easy assembly for young kids and a fun activity during sunny days. Imagine this on the beach or a backyard during a sunny weekend, it’ll be a big hit with toddlers and pre-schoolers.
Final Thoughts
The Discovery Kids 12-in-1 and Thames & Kosmos Solar Mechanics kits gave us the most replay value because kids could tear down one build and start a completely different one the same afternoon. For younger children around age 5, the 4M Solar Rover is a better starting point since it only takes about 30 minutes and teaches recycling at the same time.
If your child leans more toward science than building, the Solar Lab 1.0 stood out for actually teaching how circuits and photovoltaic cells work. It includes a multimeter, which is something most adult solar hobbyists would appreciate too.
The 14-in-1 STEM kit deserves a mention for being one of the few that works on water and has a battery backup for rainy days. That dual-power feature keeps the toy useful year-round instead of collecting dust in a closet.
These kits pair well with real solar gear as kids get older. Our mini solar panels roundup covers small panels that work great for follow-up projects once they outgrow the starter kits.
