Monocrystalline and Polycrystalline Solar Panels: What’s the Difference?

Monocrystalline and Polycrystalline Solar Panels: What’s the Difference?

Solar energy is fast gaining traction and already powers more houses than ever before. One-third of the projected 3 million solar installations in the United States were erected in the last two years. 

However, when looking for solar panels for your photovoltaic (PV) system, you’ll come across two basic types: monocrystalline solar panels (mono) and polycrystalline solar panels (poly).

The Difference Between Monocrystalline and Polycrystalline Soler Panels

Both types of panels use the sun to generate electricity, but there are several crucial distinctions to be aware of. It’s vital to examine every component of your solar energy system, particularly the decision between monocrystalline and polycrystalline solar panels. Try to consider how the type of solar panel you choose affects efficiency, price, and durability.

Monocrystalline Solar Panels

Monocrystalline Solar Panels

Monocrystalline solar panels have a dark black color. Every cell is a cut of a single silicon crystal manufactured specifically for the production of solar panels. The crystal is formed in the lab into a cylindrical log shape known as an ingot, which is then sliced into thin discs. 

Each disc is sliced into octagons along its borders. The octagonal designs of the solar cells enable the solar panels to fit the most solar cells into the array when they are placed on the solar panel. They are black and usually have an efficiency range of 15% to 20%, but some newer experimental types have been able to make them work as well as 50% of the time.

The Advantages of using monocrystalline solar panels

  • These solar panels take up less area (hence they are space-efficient).
  • Among silicon-based solar panels, these are the ones that endure the longest. These are regarded as high-end solar products.
  • It provides higher efficiency and a more streamlined appearance.
  • The electrons that generate an electric current have greater freedom of maneuver in a monocrystalline cell since it is made up of a single crystal.
  • It has a longer shelf life and operates better in low-light conditions.
  • This is why monocrystalline solar cells are more efficient than polycrystalline solar panels.

Its disadvantages

  • They are the priciest type of solar panel.
  • It has rising temperatures at substantial-performance levels.
  • Waste production is high throughout the manufacturing process.

Polycrystalline Solar Panel

Polycrystalline Solar Panel

Polycrystalline solar cells are built of silicon crystals just like monocrystalline solar cells. The distinction is that the silicon crystal cools and fragments on its own rather than being extruded as a single isolated ingot. In an oven, the fragments are heated and molded into cubes, which are then cut into thin wafers.

Rather than a single crystal like in a monocrystalline solar cell, this amalgam has a lot of different crystals in it instead. Manufacturers integrate various shards to make the panel’s wafers. Polycrystalline silicon solar cells are often referred to as “multi-crystalline” or “many-crystal silicon.” 

Because there’s so many crystals in every cell, the electrons have less flexibility to move.


  • They offer the advantage of being less expensive.
  • The blue-colored square polycrystalline cells nicely fit side by side, leaving no gaps between them.
  • There are more solar cells that may be manufactured faster and at a lower cost.


  • It offers lower efficiency.
  • The manufacturing process is less precise.

Monocrystalline vs Polycrystalline: It’s all about the cells!

Solar panels, whether monocrystalline or polycrystalline, serve the same purpose in a solar PV system, and the science behind them is straightforward: they catch solar energy and convert it to electricity. They’re also made of silicon, which is commonly used in solar panels since it’s a cheap and durable material. A number of manufacturers offer monocrystalline and polycrystalline solar panels.

Both monocrystalline and polycrystalline solar panels could be better options for your house, but there are several major differences to be aware of before committing to a solar purchase. In the most basic sense, monocrystalline solar panels use a single piece of silicon. Polycrystalline solar panels, on the other hand, use several pieces of silicon fused together.

So, what solar panel is best for you?

One of the top reasons for going solar is to save money, and whether you go with mono or poly solar panels, you’ll see a reduction in your electricity bills. Personal preferences, space limitations, and the financing option you choose help you decide which option to go with.

If the color of your solar panels is important to you, keep in mind that monocrystalline and polycrystalline solar panels will appear on your roof differently. The normal monocrystalline panel will be a darker black in color.

But the typical polycrystalline panel will be bluer in hue. Also, if you care about where your panels were built, make sure you know enough about the company that made your mono or polycrystalline solar panels.

If the size of your PV system is restricted by the amount of space available on your roof, higher efficiency solar panels are desirable. As a result, investing in more efficient monocrystalline panels that can help you increase your electricity production will pay off in the long term. When you have plenty of roof area or are putting ground-mounted solar, lower-efficiency polycrystalline panels may be a more cost-effective alternative.

Take Away

The sort of panel you choose is influenced by the manner by which you fund your system. If you choose a power purchase agreement, for example, you pay per kilowatt-hour for the electricity generated by the system. This implies that your monthly payments, not the type of equipment you’re providing, will determine your savings. 

On the other hand, paying more for high-efficiency monocrystalline solar panels, on the other hand. Can result in larger returns on your solar investment if you’re buying your system.