How Big is a Solar Panel?

How Big is a Solar Panel?How Big is a Solar Panel?

For beginners, they might wonder “how big is a solar panel”. This is the main question that might arise. For people planning to integrate a solar panel on their home, it’s important to know the size of the solar panel required. In this article, we will have a quick rundown on the solar panel sizes. This will help you have the best value for your money and efficiency.

Traditional Solar Panels

Usually, this kind of solar panels is very common in residential houses. They have sizes that are really tolerable particularly to areas with limited spaces. The 60-cell comes in the size of 3.25 x 5.5 ft. On the other hand, the 72-cell configuration in 3.25 x 6.42 ft. which is suited for bigger houses.

Since some houses have super limited spaces, you’ll have to take note of it prior to buying. With regard to that, the 60-cell might be the one fitted for your needs.

Right now solar panels do have a standardized size. This makes it easier for people to choose the right solar panel for their needs. Those traditional solar panels are good for both residential and business use. 

Bigger Capacities

If you have a bigger home then you might as well consider having a bigger solar panel. One of the most popular mid-sized solar panels is made by Panasonic. It has the following dimensions of 41.5 x 62.6 inches. It is powered by 96-cell panels that are effective in giving your place a decent source of solar energy. 

It is a little bit uncommon to find this kind of solar panel though because it is pretty expensive compared to what we’ve discussed a while ago. However, when it comes to efficiency there is no doubt that it is more reliable. This is because they can accumulate more solar power compared to the lower-end solar panels.

Important Facts about Solar Panel Sizes

For you to determine the right size of solar panels for your needs, you’ll need to learn more about it. So in this portion, we will talk about more facts regarding solar panel sizes.

Usually American household consumes 867 kilowatts per hour of electricity on a monthly basis. In order to reach that a 6.5-kilowatt solar array is expected.

In reality here is the following maximum capacity of solar panels. 

  • 60-cell = 285 to 315 watts
  • 72-cell = 335 to 375 watts

There are several factors to know the number of panels to use in forming a 6.5-kilowatt solar panel project. The chart goes as follows:

  • 23 panels can produce 285 watts
  • 21 panels can produce 315 watts
  • 20 panels can produce 340 watts
  • 18 panels can produce 375 watts

Although those numbers are estimated but mostly close in helping you build a 6.5-kilowatt solar panel system.

Usually, the standard solar panel system will be able to function using 18 to 23 panels. Well, it is pretty obvious that the more panels you have the more power you accumulate. But expect that it is more costly to run in terms of maintenance.

The Efficiency of Every Panel

If you are wondering what is the most and the least efficient panel then we will discuss it here on this part of the article.

For the 375 watts/72-cell it can accommodate up to 375.38 square feet. While the 285 watts/60-cell panel has the ability to accommodate up to 429 square feet.

To conclude, the standard solar panel system can be in the range of 375 to 429 sq. ft. It can be placed on the top of your house or on the ground but make sure that it is mounted. This will ensure that sufficient sunlight will come across the surface of the panels. As a result, better energy efficiency with the use of sunlight will be achieved. 

The Size of RV Solar Panels

Portable solar panels are trending nowadays. There might be a time wherein RV solar panels will be one step ahead of the traditional solar panels. This is because they are mobile, unlike their conventional counterparts. They are very useful as they can be used for multiple things such as:

  • Boats
  • RVs
  • Street lights

They somehow save more space because a 5-watt panel can only consume 1 sq. ft. of floor area. Although, they also come in variations that are pretty normal for solar panels, and mostly they come on 12 or 24 volts. Although, there are new technologies that might take place in the near future for more variations on voltages.

What is the Corresponding Weight of Solar Panels?

If you are about to ask the question of “how big is a solar panel” then most probably weight is also relevant to it. Mostly, solar panels are hefty in terms of weight. This is why you’ll need a sturdy roof for you to accommodate them efficiently. This is also an assurance that your roof will not break down once you integrate your solar panel system in it.

From a factual standpoint, an entire solar panel might weigh in from the range of 40 to 60 lbs. They are pretty easy to lift but the problem lies in their physical shape. Not only that, but they are also very fragile that is why they must be handled with extreme care.


Now we know the answer to the question of “how big is a solar panel”, then integrating one for your home might become easier. This is because you’ll know what type will perfectly fit there without giving you a hard time.

Read more:

How Long to Charge 12v Battery with Solar Panel?

How Long to Charge 12v Battery with Solar Panel

How Long to Charge 12v Battery with Solar Panel?How Long to Charge 12v Battery with Solar Panel?

Solar power is the primary resort to acquire energy at no cost. Since sunlight is abundant especially in the summer season, it is a great time to accumulate energy.

In a solar panel, you will see 12-volt batteries on it. It is where the converted energy is stored. So it only means that you have to charge it in order for you to use the energy from the sun. 

Knowing what a 12v battery is

If you are planning to use solar energy in your home, it is important to know how long to charge a 12v battery with solar panels.

If the battery is in good working condition, a fully-charged one has a waiting time of 4 to 8 hours. It primarily depends on the current energy level of the battery. That battery is mostly used in cars and it has the maximum output of 1 ampere. This might help us answer the question of how long to charge 12v battery with solar panel.

How to efficiently charge a 12-volt battery in a solar panel?

In order to quickly charge a 12-volt battery, there are some ways that you can utilize to make it happen. In this part of this article, we will enumerate some tips that you can use immediately.

  • The panels must have direct contact with the sun. You can achieve this by removing any object that prevents the panels from getting full sunlight such as branches of trees and etc.
  • Ensure that the batteries are fully-functioning. Defective batteries can have a subpar effect on your goal to reach the utmost efficiency. 
  • Solar panel size matters. The charging time of the battery also depends on how big the solar panel is. A larger solar panel has the ability to accumulate more solar energy which will result in quicker charging.

The Required Size of the Solar Panel for 12v Battery Charging

It is known that solar chargers are absolutely great for compact off-grid systems. They are multi-functional and can be used for various purposes such as for charging:

  • Cars
  • Cabins
  • ATVs
  • Boats

Some people even use a converter in order for them to be used for smart devices charging. It is an efficient way to reduce greenhouse gasses in the air. The most desirable size that a solar panel must have is 65 x 39-inches. It is perfect to use in charging a 12 volts battery. For business purposes, a solar panel must have a size of 77 x 39 inches.

Why you should not charge a car battery using solar panels?

Charging a car’s battery with solar energy might sound nice but if done incorrectly, it can damage your battery and the panels.

So in this part of the article, you will learn why a car battery is pretty sensitive. By knowing it, you will surely prevent bad things from happening.

The most important thing that you must do is not to plug the cable of the battery straightforwardly to the solar panel. This is because you do not want a spike of voltage from happening. High voltages can surely burn the battery which can result in permanent damage.

The Proper Technique

One cool workaround is by using a solar charge controller. It acts as a voltage regulator after you connect it both ways on the battery and the solar panel.

The process of width modulation is acted upon to ensure that the voltage will not go over the tolerable limit. 


Can a direct charge be done on a battery using solar panels?

Just be sure that you will put a charge controller so that you will avoid voltage spikes and overheating.

Is a 10-watt solar panel enough for charging 12 volts battery?

Yes as long as the solar panel is also 12 volts. This will give the panel the ability to have a peak of 13.8 volts while charging.

How long do I have to wait for charging a deep cycle battery?

Deep cycle batteries are the ones used in vehicles. Their cycle is to charge and discharge on a constant basis. So charging them will only take a few hours as the alternator of the vehicle will continue charging the battery when the car is running.

Why solar car battery chargers are good?

They are good as long that you take good care of them and you follow the proper use of those chargers. By keeping them on tiptop shape, charging using solar energy will be more efficient.

The Proper Use of Solar Panel in Charging a Lead Acid Battery

You need to things to make it happen, a voltmeter and solar panel. It must be a standard-size to avoid any hassles. The indication of a fully-charged battery is one you see that it reaches 14 volts using the voltmeter. After that, you must remove the connection immediately. This will prevent overheating to happen thus preventing damage on both the battery and the charger. There are also maximum amps written in the manual on how much your car battery could handle \, you must take note of it too.

Trickle Charging

This is a unique technique of maintaining the current battery life. You will need a specialized solar charger to make it happen. This is perfect if you are the type of person who always loves to idle their vehicles. This way of charging is mostly powered by low voltage operated chargers.


Now you know how long to charge 12v battery with solar panel, you have learned that there is no specific answer to that but most of the time 5 to 8 hours are the closest answer.

It all depends on the factors that we have discussed such as the sun’s intensity, time exposure, the voltage of the charger, and etc. The most important thing is that solar panels bring a lot of good things in our life.