How to Work Out How Many Solar Panels You Need

Posted by Mark Taylor on May 17th, 2021

If you are interested in the thought of using free, environmental friendly energy to power your household, and you would like to have a solar panel array installed, among the simplest requirements you want to keep tabs is the variety of solar panel which you require.

There are lots of aspects that would ascertain just how many you would have to utilize, and the number of you will in fact have the ability to buy. Some of them include the results of your energy consumption target calculations (how much electricity your household appliances and apparatus have to have in order to operate correctly ), the budget you've got at your disposal along with the type of solar panel you are using.

Also, depending on if you're thinking about the purchase of a high tech solar selection or you're considering building your personal panels yourself out of cheaper materials, the prices may vary. Hence, the number of solar panels you are able to put together in an array may be different, and their quality may also have to be assessed.

Obviously, depending upon your needs, you may not always have to consume a lot of energy on a regular basis. Especially if you're an ecological enthusiast, and you know how to select appliances offering better functionality, while consuming less energy, then you might actually have the ability to reduce that number to half, or even less.

Furthermore, if you would like to build your own solar panel, then you may find that the production costs can effectively be reduced to under 0 for a standard 36 solar panel. Depending on the quality of your home made solar selection, you simply need about 30 or 40 panels to provide enough power for your entire house.

Use caution, as distinct types of solar cells will offer a varying level of energy. You can calculate the energy output easily, however: Once you construct your DIY solar panel, measure the voltage and current it generates, and then multiply them to acquire the volt worth. Because of this, a little, 6 ampere solar panel which generates 12 volts, for example, will offer about 72 watts.

Now, such a weak solar panel might not supply you with too much energy, but the good thing is that there are many inexpensive panels available on the marketplace that could offer a few times as much power, and you do not have to pay more than 300 to 400 bucks for one. A solar array made of 10 to 20 of those panels would, consequently, represent a viable alternative when it comes to powering a large number of low energy appliances or gadgets.

The speed and efficiency with which solar cells are able to transform solar power into power also plays a part in determining how many solar panels you will need.

In the case of panels with monocrystalline solar cells, for example, the amount of sunlight required for generating a specific quantity of energy is far less than in the case of thin film or polycrystalline cells.

In 2010, a company that produces high excellent monocrystalline solar panels managed to break the world record for solar energy efficiency, producing solar cells which could transform more than 24% of the sun's rays into usable electrical power.

Some researchers even consider that, in a couple of decades, it may be possible to create monocrystalline solar cells which can go beyond the 30 percent or even the 40 percent mark, significantly increasing the efficiency score of these kinds of solar cells, which of solar energy in general.

A good example of the energy efficiency these solar panels may offer would be that a solar panel system using a total of 36 monocrystalline cells can normally produce around 100 to 130 watts. This practically means that in case you would like to receive 1 kw (1000 watts), you will need about 10 of these panels. Based on the quality and brand of the panel, pricing can range between 00 and 00 with this particular strategy.

Compared with these results, technologies utilizing polycrystalline cells are barely able to get close to the 20% limitation today, while thin film based technologies hardly provide about 15 to 17% efficacy.

These numbers can conclude the technological excellence of monocrystalline PV cells, however they do not prove that the best choice is to acquire such panels. It is correct that you will not need as many panels to achieve a overall output of approximately 1 to 3 kw in this circumstance, but the problem is that the more monocrystalline solar panels you purchase, the greater the cost difference becomes.

You may also opt for significantly less energy efficiency and a much better pricing alternative in order to spend less. In this regard, polycrystalline cells are far better, since they're not as weak as thin film-based technologies, and therefore are somewhat less costly than monocrystalline solar cells.

Now, everybody is generally thinking about budget issues when it comes to buying or producing a solar panel. DIY solar panels are clearly cheaper, but the quality differences can be great, not to mention that you will have to put a great deal of work to it, if you want your new panels to carry out properly.

If you choose to purchase a solar panel, on the other hand, you will already have all the amounts necessary regarding how many watts it produces, and how stable it is. By using some simple math, then you may then compute exactly how a number of these devices you need so as to meet your energy goal.

You have to take all the choices into consideration, however, and avoid clinging to your brands just because they have a more"catchier" marketing agenda. In the end, the numbers will show you everything that you need to know, and you can create your own mind concerning which types of panels you should purchase, and how many of these you will need.

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