Solar Cells By The Watt

Original price was: $2.49.Current price is: $1.50.

Solar cells by the watt. Buy solar cells by the watt. This is a cost effective way to start making your own solar panels. If you’re interested in learning more about solar cells and how they work, get started with your first solar panel kit. We also have tabbing materials and the necessary accessories for building your own solar panels.


SKU: EduSol-Pro-CellsByWatt Category:

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Solar Cells by the Watt

Buy solar cells by the watt. For year’s we’ve been offering solar cells by the watt. Whether you’re building your own science project or a custom solar panel, our cells by the watt is a low cost way to dive into solar energy. Looking to buy in bulk? We offer solar cells in bulk as low as $0.20 per watt. For more bulk quotations, just shoot us a message or give us a call.

Don't forget the accessories you'll need

Be sure to check out our soldering iron and accessories perfect for building your solar panel project.
  • Soldering Iron – make sure you have a good quality soldering iron when soldering solar cells.
  • Flux Pen – Is essential when building a solar panel. Not all flux pens are created equal. Make sure the flux will not react with your solar cells after 1-2 years (80% of flux on market will destroy solar cell)
  • Tabbing – You’ll need 2mm and 5mm tabbing. The 2mm is for interconnecting between the solar cells, and 5mm between your “strings” of solar cells.

Our suggestions

Plan a little before building your solar panels.

  • How many watts do you need? 
  • What voltage do you need?
  • Where will the solar panel go? 
  • How will you encapsulate it? 

Tech Specs

How to Order?

Simply enter the number of watts you would like in the quantity field above. Each watt corresponds to approximately 2.5″ x 2.5″. We typically include an additional 10% of solar cells to compensate for different sizes.

Our Solar Cells by the Watt are an easy way to learn how solar energy works while saving time and money at the same time.

Our solar cells by the watt come from our damaged solar cells in production that are chipped/broken into large pieces or have been used for testing experiments.

Each group of broken solar cells are designed for experimentation in the solar realm before
making the large investment in making large PV modules.

  • Use our highly efficient Poly-crystalline solar cells
  • Save $$$ by learning how solar panels are made first hand
  • Used by customers of all ages to construct their own custom solar panels
  • Be smart and test your knowledge before making the big decision

For anyone who is interested in creating their own solar photovoltaic system, Solar Cells by the Watt are the way to go. After you have completed a solar panel and tested it out, gaining valuable experience in solar panel construction and becoming more comfortable with photovoltaics, you should consider going one step further and giving our commercial grade solar cells a try. Also check out our solar cells by the pound.

In this subcategory you will also find a Solar Cell Information Packet. This offers an easy-to-follow, detailed
introduction into Solar Energy which will help you understand the basics of PV solar technology and teach you how you can make your own solar panel.

Additional information

Weight1 lbs
Dimensions2 × 2 × 2 in

22 reviews for Solar Cells By The Watt

  1. 4 out of 5


    It works well.The panel is very light and portable

  2. Adair

    Thank you. Solar cells functioned well thank you

  3. 5 out of 5

    Liam S

    Highly recommended! We’ll purchase more Thanks Silicon Solar!

  4. 5 out of 5


    Great Product. Dependable Quality Solar Cells!

  5. 5 out of 5

    Aldrin E

    Great Delivery and undamaged! Thank you Silicon Solar

  6. 5 out of 5

    Gerry R.

    Super light but still sturdy

  7. 4 out of 5


    Great cells for your projects

  8. 4 out of 5


    These are great and low cost. All are functional.

  9. 5 out of 5

    Jason T

    Great packaging..Much nicer little solar cells than I expected…

  10. 5 out of 5

    Chance R

    Excellent solar cells! Quality, portable cell deliver great power in a small package

  11. 5 out of 5


    They are in fact solar cells, and they work.

  12. 4 out of 5


    Delivers great performance for its size. The product is as described, and delivers great performance for its size.
    Arrived promptly.

  13. 4 out of 5

    Agnes L.

    The package was well done no damaged cells.We’ll do business with u again

  14. 5 out of 5


    Small size light weight yet powerful cell! We’ll purchase more!

  15. 5 out of 5

    Anne G.

    I have tested one cell and looks good. I’ll order again soon!

  16. 4 out of 5


    Great product. Awesome little solar panels

  17. 5 out of 5

    Cess R.

    Five Stars.Just as described

  18. 5 out of 5

    Rihanna R

    Great value. Perfect cells and good packaging

  19. 4 out of 5

    Jezzy Y

    Small, lightweight, powerful

  20. 5 out of 5

    Riener R

    These solar cells works FABULOUSLY

  21. 5 out of 5


    Works perfect!

  22. 4 out of 5

    Freed G

    It works well. The portability was worth the extra cost to me.

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Since 1999 we've helped thousands of customers with their renewable energy projects. From science projects to solar powered container tracking systems, our team is here with 20 years of experience to help you with your project. If you're ever in the area, we invite you to stop by. Learn more about our history here.

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