Deciding which solar panels to buy is very important since they represent the largest expense in a PV system.
Here are a set of questions you may have in regard to panels, and some possible answers.
Is It Important That I Know How Buying Solar Panels Work?
That's an easy question to answer. And the answer is "Yes", because, without knowing anything about how panels work and what to look for when considering which panels to buy, you may end up spending more than you need to or buying the wrong panels for your project.
Solar panels are made up of cells that contain silicon which reacts with sunlight to generate an electrical charge, following the principles of what's known as the photovoltaic effect.
Yes, there are, and they vary quite a bit in cost and efficiency, so it's very important to know which is which so you can decide which type is right for you.
There are 3 types, as follows, in descending order of cost and efficiency:
- Mono-crystalline – manufactured from single-crystal silicon
- Polycrystalline – made using grains of single-crystal silicon
- Amorphous – non-crystalline silicon is printed on surfaces such as glass, metal or plastic
Should I Buying Solar Panels?
That depends on a couple of factors – your budget and the amount of space you have available for the installation of the panels.
Newer panels are more efficient than older ones and are about the same size. But, if you've got the space, you could save quite a bit of money if you buy older panels with slightly more primitive technology. These panels may have the disadvantage of older technology, but they'll get the job done just as well, and that, after all, is the main thing.
What Should I Expect To Pay?
The best criterion to use to determine the value of a solar panel is the cost per watt, with $4 per watt being a reasonable amount to pay. A little bit more or less shouldn't be a major concern.
Using that criterion, you should expect to pay around $200 for a 50 watt panel.
Buying solar panels is an important part of putting a PV system together, and usually the most expensive part of the system, so it's something that shouldn't be entered into without some prior knowledge and research. These are some of the more important questions you may have and the answers to help you with your buying decision.