Difference Between A Grade And B Grade Solar Panels

By Kami Turky

Last Updated:

A grade solar panels are a type of photovoltaic panel that is considered to be a high-end product.

They have a lower cost per watt and a higher efficiency than their cheaper counterparts. They also come with a better warranty and a higher life expectancy, so they may be the best choice for your home or business needs!

Further, they don’t have any visible defects such as missing busbars, missing prints, bends, scratches, etc.

In this article, we will provide you with all the information you need to know about A grade and B grade solar cells and how are they different than their counterpart.

What Is Solar Panel Grading?

When a solar panel is graded, it means that the manufacturer has tested each cell within a particular solar panel to determine how efficient they are.

Solar panel producers rate their goods on the basis of the type and degree of flaws.

These grades have a range from A to D and it was originally limited to performance only, but it has evolved into including various levels for physical faults as well.

Grading allows manufacturers to adjust their production process until they produce cells with uniform efficiency.

Once manufacturing processes like this become more uniform and effective for all types of photovoltaic panels, then the grading system may become a thing of the past.

How Solar Panels Are Graded?

Each solar panel is given a rating based on their performance and whether they have physical defects or not.

Here are some of the defects that can determine the grade of the solar cell:

  • The frame, glass, or backsheet has scratches.
  • Dents in the frame or backsheet.
  • Microcrakcs in the cells
  • Bubbles in the glass.
  • Uneven glue on the glass or frame.
  • Gaps between the glass and frame
  • Output below specification

The highest possible grading system for a cell is “grade A”.

Depending on how severe the defects are, the solar cell is then graded from B to D.

Cells with these grades will typically have lower overall wattage but are a great way to save money on your energy bill.

Cells with a grade of D or F are considered sub-par.

Why Are A Grade Solar Panels More Expensive?

These types of photovoltaic cells are typically more efficient than the lower grades and come with a higher warranty as well!

Most a grade solar panels have an average life expectancy of 25 years while their cheaper counterparts last only about 15-20 years on average before a replacement is necessary.

For a business or homeowner who wants to save money in the long run, a grade solar panels are a great choice!

If you’re looking for something that will have a lower upfront cost but may require more maintenance throughout its lifetime, then a cheaper photovoltaic panel might be your best bet.

Related article: How Long Does It Take For Solar Panels To Pay For Themselves?

What Are Other Advantages Of A Grade Solar Panels?

Aside from a grade solar panels being more efficient and having a higher life expectancy, there are a few other reasons why they may be the best choice for your home or business.

A grade solar panel is made using silicon cells that can last up to 25 years on average before needing replacement.

This makes a grade solar panel a great choice for homeowners who want to save money on their energy bills!

Another advantage of a grade solar panels is that they are more likely to have a warranty.

This means you can rest easy knowing your purchase will be covered in the event something goes wrong with it within a certain time period after purchase!

Related article: Advantages And Disadvantages Of Solar Energy

What Are The Disadvantages Of A Grade Solar Panels

The biggest drawback of these types of photovoltaic cells is the price tag!

These products typically have a higher upfront cost than some other types on the market, but they also tend to be more efficient and have a longer life expectancy.

Grades B, C, D & F are typically not as effective or long-lasting as a grade solar panels which is why they may be a better choice if you’re looking for something more affordable.

If you don’t mind spending a little extra up front in exchange for lower energy bills throughout a a grade solar panels’ life expectancy, then a grade solar panel may be a great product for your needs!

What Are My Options If I Cannot Afford A Grade Solar Panels?

Though a grade solar panels are the most efficient and highest rated types of photovoltaic cells available on the market today, they can be quite expensive.

If a grade solar panels are out of your price range, there are a few other options to consider.

The most common type is b grade solar panels.

These cells do not perform quite as well but still come with a warranty and typically last a long time before needing replacement!

What Are B Grade Solar Cells?

In B Grade solar cells, only visible defects are present, and they completely fulfill all data sheet performance criteria.

These flaws can be seen from up to 7 feet away, but they’re barely noticeable beyond that distance when compared to A-Grade panels.

B grade solar panels are a much cheaper option to a grade solar panels but still offer a lot of great features! They may typically be purchased for about 35% less than a A-Grade module.

Additionally, these photovoltaic cells will typically last about 15 years before they need to be replaced and come with a warranty in case something goes wrong during that time period.

Difference Between A Grade and B Grade Solar Panels

The a grade solar panel is a high-end product that has a lower cost per watt and a higher efficiency. They have a better warranty and a longer life expectancy, so they may be the best choice for your home or business needs!

Grade B solar panels, on the other hand, might have tiny defects.

The following visible defects are common:

  • Slight bend
  • Color deviation
  • Missing prints
  • Part of front Busbar missing
  • Paste leakage
  • Scratches
  • Water marks

Last Words

Solar cells are one of the most efficient types of renewable energy available, so they definitely deserve a place in your home or business.

If you’re looking for a way to save money on your electric bill, then a grade solar panel is probably right up your alley.

For a lower cost per watt than standard solar panels, you can still get a good chunk of energy from the sun every day!

Kami Turky

Kami is a solar engineer with nearly a decade of experience in researching, testing, and reviewing various solar products.He has also provided technical consultation to several organizations on the best ways to incorporate solar energy into their operations.When he’s not busy helping others find the best solar solutions, Kami enjoys spending time outdoors, hiking, camping, and exploring the natural wonders of his home state.

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