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When we are about to buy a photovoltaic solar panel, we look especially at the price, but is the price the most important criterion when choosing a photovoltaic solar module? There are many factors to take into account: manufacturer’s solvency, warranty conditions, references of operation in other facilities, quality in the manufacturing process, certification tests and many more. They are undoubtedly important but often difficult to find out factors. When we want to buy a photovoltaic solar panel we usually look at the price and the technical characteristics. And this is where we must pay special attention to the details to “translate” all that information and know which is relevant to make the decision of which panel to buy.

3Kw Complete DIY Solar Kit 260W Watt REC Solar Panels SMA SunnyBoy String Inverter Roof Tech Rail-Less Racking

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3Kw Complete DIY Solar Kit 260W Watt REC Solar Panels SMA SunnyBoy String Inverter Roof Tech Rail-Less Racking

How to choose batteries for solar panels

The main function of batteries for solar panels lies in storing solar energy during the hours with light to be used during the night or for prolonged periods of low light or bad weather. Knowing which battery is suitable for our photovoltaic generation system consists mainly of the one that best suits our needs.

Regardless of its energy storage functions, batteries for solar panels also have the capacity to provide a greater current intensity than that generated by the photovoltaic system during daylight hours.

Just as each battery is different, the capacity of accumulation of energy in a device depends on the speed of discharge of the same: the longer there is in the discharge, the greater the amount of energy that the solar battery will generate.


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Find out how much you usually spend in kw/h per day:

You can check your electricity bill, or consult the electric company. This will help you make your choice by calculating your consumption.

Where would you place it?

Remember that your panel should give sunlight in the most powerful hours of the day, which covers from 10 to 3 in the afternoon. When you know where you will locate it then it will also be easier for you to know the size of panels you need.

Monocrystalline or polycrystalline.

The theoretical yield of monocrystalline is slightly higher, but also its price.

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Considerations prior to the installation of solar panels.

To take advantage of the advantages of placing solar panels at home, it is convenient to have some considerations about their installation.

It is important to know the performance we can obtain according to our location, there is a map in which the climatic zones are classified according to the solar radiation or the annual sunshine hours. To capture the maximum solar radiation, we must orient the panels to the south.

It is also necessary to take into account the inclination of the panel that will depend on variables such as use or geographical latitude and a fixed value (18º), which must be added to it, in order to obtain optimum performance.


We invite you to ask yourself these questions before making your purchase because they are necessary considerations to keep in mind. If you need help, the technical team of tutiendaenergética.es will be happy to help you with your purchase.