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When deciding on renewable energy sources such as photovoltaic panels, many people ask themselves how much electricity will they produce? In this situation, it should be borne in mind that the final amount of electricity that is generated by photovoltaic panels is conditioned by many factors. This applies to both the entire technology of devices that are used during the installation and the correct design and implementation of the photovoltaic system. In the following article you will learn, among other things, what photovoltaics are, how much electricity solar panels can produce and many other interesting information!
Photovoltaic panels – how much electricity do they produce?
If you are interested in photovoltaics, how much electricity can be produced in a year with the use of photovoltaic panels, this is a question to which the answer is not clear. What is worth remembering? The fact that the weather conditions prevailing in a given area of operation of the installation are also very important here, and perhaps above all. What is important? This applies especially to the intensity of solar.
Modern technological solution – photovoltaic panels
Did you know that photovoltaic panels are currently very popular, growing year by year? They are made using the latest technology, which uses silicon with a polycrystalline or monocrystalline structure. In the cells that are connected to each other, electricity is generated, then it is output through DC wiring, thanks to which it is possible to connect photovoltaic panels into one coherent chain. What is worth bearing in mind? The fact that the amount of electricity produced from one module depends primarily on the entire technical specification, which includes, among others:
- number of cells used
- the physical dimensions of the photovoltaic modules are also important.
Today, most of the modules available on the market have the following dimensions:
- height – about 1.7 meters
- width – about 1 meter.
It is worth noting that these sizes are in line with the standards that are currently in force on the market in the photovoltaic industry and have been uninterrupted for many years! The popularity of photovoltaic panels is greatly influenced by the effectiveness of new technological solutions that are used in the modules. The effect of photovoltaic panels produced today is the ability to produce more electricity than a dozen or so years ago!
What is the efficiency of photovoltaic panels?
If you are interested in photovoltaics, how much electricity is a question that is very closely related to the efficiency of photovoltaic panels. You should know that the efficiency of the modules is determined by the amount of solar radiation that is converted into electricity. It is worth noting that the nominal power is very important here, because it is the value that determines the power of the photovoltaic module, which is expressed in watts. Did you know that today the current standard among available photovoltaic panels is the power in the range of 270-275 watts? Importantly, the power level depends on the efficiency and size of the module. However, what matters most to the user of solar panels is the amount of energy that is produced by the entire string, not a single module! Remember that the nominal power of each panel is specified in a special plate, which is on the back, moreover, such information is also included in the catalog card. The information contained in it determines the power that the photovoltaic panel is able to produce, taking into account optimal weather conditions.
Photovoltaic cells and the amount of energy
Please note that in order to precisely determine the power of photovoltaic panels, it is necessary to test them in good conditions! The level that is obtained on clear days in the afternoon is about 1000 W / m2. It looks like this:
- Check the rating plate, because there is a value, for example, if it is possible to generate 250 W of power for the appropriate STC parameters, then within 1 hour you can get 250 Wh of electricity.
- By connecting 4 of this type of photovoltaic panels, you get the opportunity to produce 1 kWh of electricity.
- Based on the example above, you can calculate the amount of electricity generated in 1 day and in 1 year by multiplying the result by 365 days.
If you are interested in photovoltaics, how much electricity can be generated in 1 year is a question that is also worth asking specialists in this industry, because they are always ready to help and provide professional advice.
Photovoltaics in Poland
What is worth remembering? The fact that the amount of electricity obtained from a photovoltaic installation depends on the amount of sunlight in a given place throughout the year. According to observations and research conducted in Poland, there are on average 2 hours and 45 minutes of full solar radiation in one day. What is important? It is only about the time when the rays fall directly on the panels, you can easily calculate the daily result in this way, because it is enough to multiply 250 watts by 2 hours and 45 minutes. The result obtained is the value for one panel per day. It should be borne in mind that it is very important to choose the size of the installation to the house’s electricity needs!
If you are interested in photovoltaics, you will find out how much electricity the photovoltaic panels can generate based on individual calculations for your household. Familiarize yourself with the available offer and choose the right solution for you and your family!