Calculate Short Circuit

How to Calculate the Output of Solar Panel

A single photovoltaic module is responsible in converting the sunlight into a DC electrical power. Working on this method, the developers have designed improved panels containing several amount of photovoltaic cells to meet the industrial and household needs of today. Many electronics installed in the house are better to run on solar panel, so that it will control the expenses we have to accumulate in the form of electrical bills.

But one can set up effective solar panels if they could identify the value of output that a solar panel will be able to produce. In order to be able to understand the output levels of any solar panel one have to understand on a few things. First being that heat trapped in the cells is shifted into a DC electrical power, which is a product of current (I) and voltage (V) and measured in Watts (W). The power released by the solar panel is directly influenced by the electrical load resistance linked to the panels. This resistance is measured in the unit of Ohm and can be calculated according to Ohm's Law, which includes dividing voltage by resistance to get the estimation of the current.

To measure out the output value, it is actually linked to multiple values of resistors which can measure the voltage produced value, thus can be used to obtain the best power output value for any panel overall. A digital multi-meter that reads the DC can also be used for finding the output value. One can determine the output levels of a solar panel by reading the voltage calculated with the help of the meter when it is connected to the resistor.

The digital multi-meter can also be used to measure the open and short circuit voltages and calculate each current by dividing the measured voltage from the resistance value. Power then can be verified by multiplying the voltage with the current as mentioned in the formulae given earlier.

One of the most well known attributes of all the solar panels is that they produce highest level of power when the resistance measures 25 Ohm and power to 81 watts. The optimum point for a solar panel is described when the voltage and the current are produced at their fullest. When testing the solar panel output, try not to use 1/4 or 1/2 watt resistors as they are prone to getting over heated and thus, burn. Use the rheostats instead, or high watts resistors for helping in deciding the accurate measurements quick.

Once you have determined the solar panel output, you can opt for better options according to the house and family requirements.

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Article Source: ArticlesBase.com