JA Solar: The Comprehensive Review | Solar.com

Please enter a valid zip code.

JA Solar: The Comprehensive Review


Founded in May 2005 and later listed on the New York Stock Exchange in 2007, JA Solar is a globally recognized manufacturer of solar technologies for residential, commercial, and utility-scale energy generation.

JA Solar is headquartered in Shanghai, China and has a large customer base in Europe, Asia, and North America. Their list of product offerings include items such as silicon wafers, solar cells, solar panel modules, and other solar energy components.

In terms of solar panel options, JA Solar has a number of variations for the customer to choose from. With the ability to get different power outputs, solar cell counts, and solar cells types, JA Solar offers a great level of flexibility that earns them a spot as a top solar panel on our reviews.

To make it easier to understand, we’ll break down JA Solar’s solar panel offerings into simple categories and explore the details of each solar panel that falls within.

JA Solar Standard Solar Module Information

The standard JA Solar panels for sale come with either polycrystalline or monocrystalline solar cells. Polycrystalline solar cells are manufactured differently from monocrystalline, and as a result, have different features.

Polycrystalline solar panels are produced by filling a mold with silicone and allowing it to set into a wafer. The uneven texture of these cells leads to many silicon crystals forming, which gives these panels a sparkling look. They are also blue in appearance.

Monocrystalline cells are produced through a much more involved process, which leads to higher efficiency solar cells and thus a higher cost than polycrystalline. These panels are also black in color.

JA Solar’s standard solar modules also come in a 60-cell or 72-cell count. Here is a table to outline the differences in power output and efficiency for these modules:


Solar Panel Module Max Power Output (Pmax) Efficiency
60-Cell Poly (JAP60S01/SC) 280 W 17.1%
72-Cell Poly (JAP72S01/SC) 335 W 17.2%
60-Cell PERC Mono (JAM60S01/PR) 310 W 19.0%
72-Cell PERC Mono (JAM72S01/PR) 335 W 17.2%


Outside of power output and efficiency, there are a few other features that differentiate these solar modules.

JA Solar’s standard panels have limited power degradation. All solar panels degrade over time from weathering, but some panels degrade slower than others. Also, each one of these modules has a high salt mist, Sand dust, and ammonia resistance, which allows you to install it in a number of climates.

These models have higher efficiency due to a lower temperature coefficient, but the monocrystalline models have a much better performance in low-light environments. Lastly, each of these modules have 5 busbars to further help with their efficiency.

JA Solar Half-Cell Module Review

In case you need a quick review, each solar module (aka solar panel) is composed of individual solar cells, the little square components within panels. JA Solar’s half-cell solar panels are unique in that their solar cells are smaller in size than the standard model.

JA Solar Half-Cell Module

JA Solar’s Half-Cell Modules

This results in higher power outputs, lower temperature coefficients, reduced shading effect on the module’s energy production, lower risk of hot spots, and an improvement in tolerance for mechanical loading.

Solar Panel Module Max Power Output (Pmax) Efficiency
60-Cell Poly Half-Cell (JAP60S03/SC) 290 W 17.4%
72-Cell Poly Half-Cell (JAP72S03/SC) 345 W 17.4%
60-Cell PERC Mono Half-Cell (JAM60S03/PR) 320 W 19.2%
72-Cell PERC Mono Half-Cell (JAM72S03/PR) 335 W 17.2%

As you can see from the above table, the half-cell modules all come in the same models as the standard. So, the only difference is what results from the half-cells.

Additionally, when it says 60-cell, there really are 120 individual cells, since the 60 original cells are split in half. Same goes for the 72-cell models.

Double Glass Module

The double glass modules have a different backsheet than the traditional polymer ones. These units are covered with heat-strengthened glass that leads to lower power degradation and higher productivity in all types of environments.

JA Solar Double Glass Panel

JA Solar’s Double Glass Modules

Overall, the double glass feature makes these modules more durable and reliable. They also come in the four options as the previous JA Solar panels. One notable difference is that the 72-cell monocrystalline panel has a much higher output and efficiency.

Solar Panel Module Max Power Output (Pmax) Efficiency
60-Cell Poly Double Glass (JAP60D00/SC) 280 W 17.0%
72-Cell Poly Double Glass (JAP72D00/SC) 335 W 17.2%
60-Cell PERC Mono Double Glass (JAM60D00/PR) 310 W 18.8%
72-Cell PERC Mono Double Glass (JAM72D00/PR) 370 W 19.0%

These glass backsheets are not transparent. Those kinds of modules are called bifacial – which JA Solar also offers.

Bifacial Mono PERC Double Glass Module

The final category of solar panel modules that JA Solar has to offer are the Bifacial Mono PERC Double Glass modules. There are also 4 options within this category — two 60-cell options and two 72-cell options.

Front and Back of JA Solar Bifacial Modules

Front and Back of JA Solar’s Bifacial Modules

JA Solar’s bifacial PERCIUM cells have the ability to generate energy on both sides of the panel. This leads to higher-performing and more cost-effective modules. This also helps with its durability and longevity.

The only difference between the two models for each cell size is that one of them has a 30mm frame added to it. This makes it easier to transport and install. Here are the other details:

Solar Panel Module Max Power Output (Pmax) Efficiency
60-Cell Bifacial Mono PERC Double Glass (JAM60D00/BP) 310 W 18.7%
72-Cell Bifacial Mono PERC Double Glass (JAM72D00/BP) 370 W 18.8%
60-Cell w/ 30mm Frame (JAM60D00/BP) 310 W 18.5%
72-Cell w/ 30mm Frame (JAM72D00/BP) 370 W 18.6%

Is JA Solar Right For Me?

From the above tables, you can see that the power output and efficiency of JA Solar’s modules are very comparable with the majority of other solar panels on the market. It is very common to see panels around 15-16% efficiency on the low end and 18-19% on the high end, although some solar panels can reach an efficiency of over 21%.

All of JA Solar’s panels are quite durable and have 10-year product quality warranties and up to 25-year power output warranties. Feel free to get on a call with one of our experienced energy advisors to learn more about JA Solar and their product offerings

Three Tips on Choosing the Best Solar Panel

We cover this thoroughly in our Best Solar Panels Guide, but here are a few quick things to keep in mind when choosing a panel brand and product for you:

  1. Understand your roof – Your roof type, space, and age will have a large effect on what solar panel system will be best for your home.
  2. Efficiency isn’t everything – You don’t need to pay extra for a 20% efficiency panel if you have enough space on your roof.
  3. Get multiple solar quotes – Use online solar design and quote tools like Solar.com to gather multiple competitive quotes. This ensures you’re getting a better deal for your system, particularly if you choose one of Solar.com’s pre-vetted installers.


Return to

Solar Panel Efficiency - Pick the Most Efficient Solar Panels

⇠ Return

See how much solar panels cost in your area.

Please enter a valid zip code.

Please enter a valid zip code.

Zero Upfront Cost. Best Price Guaranteed.


How To Find the Best Solar Panels for Your Home in 2024

Trying to determine the best solar panels for your home is like trying to determine the best car – there’s no one correct answer. Everybody...

Learn More

How Does Solar Power Work on a House? Your Questions Answered

How does solar power work? A simple explanation is that solar panels convert sunlight into electricity that can be used immediately or stored in batteries....

Learn More

Solar Inverters: Types, Pros and Cons

What is a solar inverter? Solar energy doesn’t provide electricity in a format that your table lamp could be powered by. Inverters change the power...

Learn More

Solar Providers Near Me

When beginning your home solar project, you might start by searching “Solar Providers Near Me.” Then, you'll be presented with dozens of different solar companies...

Learn More

Solar Panel Installation Process

Transitioning to power from solar panels is an exciting step for homeowners. There are several steps in the process which ensure the homeowner gets a...

Learn More

Charging Your EV With Solar Panels and Using the EV Tax Credit To Lower the Cost

Ditching your gas-guzzler for an electric vehicle (EV) is a great way to lower the cost and emissions of getting from A to B. But...

Learn More

Community Solar

It’s no secret that many of us spend a large portion of our income on energy and electricity bills. In fact, in 2012 we spent...

Learn More

Solar for Condo Owners

Solar for condominium unit owners is gaining steady popularity throughout the country, as more and more states are writing legislation to promote clean energy accessibility....

Learn More

Key Solar Terms

Going solar isn't something people do everyday and unless you have an electrical engineering degree, it's likely you'll bump into some new phrases and terms....

Learn More