Jessica PirroJanuary 21, 2020 1583 3
Buying solar panels can be a difficult task unless you have the technical knowledge. Therefore you will need to do your homework by gathering as much information as you can by taking solar installers and other professionals that are in the industry.
Since it is a substantial investment, be sure to consider all the essential aspects of your purchase. When you wish to buy the best solar panels, you should compare the solar panels' efficiency, the cost of solar panels, the solar panels' durability, and the compatibility.
Though there’s a wide range of companies that will offer their solar panels, it’s going to be best to choose ones that will best meet your solar power systems needs. When buying the solar panels for your home, you should keep these important factors in mind.
What Kind of Solar Panels Do You need?
Before getting a solar panel installation, you should be sure to figure out the kind of solar panels you can mount on your roof. If you don’t have a lot of space on your roof, you should try to install highly efficient monocrystalline solar panels.
You should also keep in mind the overall number of solar panels that are required and the cost of solar panel installations. You should be sure to determine if you are going to need solar panel installation tacking on your roof.
The Solar Company’s Warranty
As a prospective solar panel installation customer, it is your right to know about what type of warranty for solar panels that they will offer. Ask about the warranty that the solar company offers when buying solar panels.
If the solar company’s warranty is substantial (a minimum of 25 years), meaning that the solar power product is reliable. You are going to want to be sure that your warranty covers the entirety of the lifespan of the solar panels. The lifespan of solar panels will typically be 30 to 35 years. Some solar power technologies are going to allow for up to 40 years of a lifespan.
Compare the Cost of Solar
When you compare the cost of solar panels, you can get a better idea about the quality of the solar power product. Typically, low-quality solar power products are going to be cheaper than high-quality solar power products.
Solar Panel Certifications
Only certified solar panels can meet the advertised specifications. Look for the certifications that are awarded to the product that you want to buy. It is going to allow you to evaluate the solar panels' efficiency and performance level of a solar panel. Be sure that the solar panels are tested by an independent laboratory.
What Is Going to Impact the Performance of a Solar Panel?
After understanding how the solar panels produce power, it is going to be just as important to understand what factors affect their performance.
The solar panels' efficiency ranges from 14% to 18%. This is going to be the best way to determines the efficiency of the solar panels. Some of the high-performing solar panels perform above the 18% solar panels efficiency mark but usually end up costing more.
What Impacts the Solar Panels Performance?
The solar panels' orientation indicates the angle they are tilted at from the ground up. This angle is going to directly affect their efficiency as they directly face the sun. The orientation varies by hemisphere, region, and even your city or town.
But, when it comes to domestic solar power systems, though they may not be cost-efficient. The angle your solar panels are installed at will determine the optimal solar panels efficiency based on your location.
- The Shade
An issue that plagues the performance of the solar panels is going to be the shade. The whole point of installing solar panels is going to be to expose them to the sunlight so that they can produce solar power. The shade is going to block the sunlight and reduce the output.
A little bit of shade on one of the solar panels might have a domino effect on all others in the solar power system. The best way to ensure that there isn’t any shade on the solar panels is to place them at a decent distance.
This may be an issue if you have limited roof space. Just be sure that there isn’t any shade at peak house, which is during midday.
- The Temperature
The temperature can also affect the efficiency of the solar panels, although not by much. Solar panels do not work great at high temperatures. With higher temperatures, the conductivity increases making the overall voltage lower.
One way to deal with this issue is to allow ample air circulation around the solar panels. Alternatively, you can choose solar panels that are better to withstand high temperatures.
Useful Tips to Help You Buy Solar Panels
Since solar panels last a lifetime, you may think it is should be easy to buy them without much decision making. However, you can make the most of your money by using these tips:
- Look out for the solar manufacturer warranties as they can help estimate their life. A warranty of 25 years or longer indicates the solar panels are high-quality.
- Solar panels should have appropriate certification. Not only does it ensure that they have standardized performance but might even earn you tax rebates.
- Consider where your solar panel installation is going to be. If you have limited space, you may want to invest in the solar panels that have the highest efficiency.
- Pay attention to the solar power inverter because it can either make or break the output of your solar panels. If it isn’t efficient enough, your solar panels’ output might not be materialized.
- You should always compare the solar panel installation quotes, especially when making a major purpose. A good solar company can even give you quotes with all of the details that you can use to find the best deal.
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