Solar panels are devices which can be useful for producing electricity from sun light. Solar panels are comprised of many individual photo voltaic cells organized in series. Each cell has the capacity to produce handful of voltage as a reaction to the incident sun rays over its surface. Arrays of these individual cells are attached in series to form a single solar panel, which leads to the generation of an important significance of voltage in the existence of sunlight.
This awesome capability of these devices to convert free and numerous solar energy into electrical power helps make it greatly helpful in the appropriate application.
Undoubtedly, solar panels are getting reputation at a very quick pace and can be looked at as the devices of the future for changing traditional techniques of producing electricity.
With regards to individual use, solar panels could become a tough parameter to digest. Although choosing solar panels, people are likely to rely completely on the producer and the technical personnel, thereby are not able to obtain personal decisions with the devices technical specifications and high quality.
In this post we’ll talk about a few of the simple techie factors associated with solar panels which assists us to recognize solar panels from the core and make use of them effectively. The mentioned points are although very fundamental, offers common yet valuable inputs concerning these types of excellent devices.
As described in the above paragraph, solar panels transfer direct sunlight incident over their surface into electricity. Considering that the produced electricity is instantly proportional to the striking sunrays, the direction and the strength of the rays turn out to be the main factors disturbing the outcomes.
Consequently, the voltage magnitude obtainable across solar panel output terminals can vary greatly in accordance with the power and the amount of sun light obtainable over its surface, and differs linearly.
Usually every solar panel is related to a specific set of technical and electrical specs, which defines its working and utilization.
The following technical features may be usually observed:
Short circuit current,
As a customer, the guidelines which might be especially crucial are: optimal voltage, optimal current, short circuit current and the fuse rating.
Even though the installations is going to be taken care of by the connected engineer, the user needs to be conscious relating to the working conditions connected with these devices. This might tremendously enable them to to examine, personalize as well as troubleshoot some of the well-known mistakes followed with these devices.
Returning to the specifications, maximum voltage describes the importance of voltage which may be obtained from a solar panel under standard circumstances; optimal current is furthermore the magnitude of current that’s offered by it under the above situations, that is definitely when the sun light is perpendicular to the surface of the panel with clear skies.
Optimal voltage should invariably be higher than the minimum needed voltage for the application. In reality it ought to more than twice the essential value. This indicates that sure that even under depressing problems the output from the panel could possibly be simply enough for the requirements or above the bare minimum needs.
Throughout optimal situations, the extra voltage from the panel is properly customized by the related voltage regulator such that only the needed magnitude touches the application; generally this voltage is going to be employed for charging an inverter battery.
Highest voltage might be disregarded as it represents the capability of the panel to generate electricity under highest artificial forced light conditions, not anything associated with regular utilization.
Short circuit current is the magnitude of current which in turn causes the output of the solar panel achieve a zero level when its output leads are connected or shorted, a point in which the panel output implies a zero voltage and is unable to function.
The problem might cause serious weakening or even a long term harm to the device. This requirement shows the loading current of the panel which simply cannot be surpassed above the rated value; usually this value has to be stored at around 50% of the specific value.
The optimum fuse rating is the amperage of the fuse wire associated in series with the panels output. This rating ought to be a shade lower to the above short circuit current rating so that the fuse immediately blows-of before the current can go over and attain the harmful short circuit conditions.
The highest wattage spec can also be overlooked simply because as soon as the best current and voltage are chosen correctly, the wattage which the product of the above two limitations, instantly adjust with the requirements.
In spite of this today’s modern solar voltage regulators and charger connected with solar panels look after the most crucial circumstances, removing short circuit, overload or over voltage situations, preserving both the solar panel and the inverter/battery stage which are usually incorporated to the panel for the preferred procedures.
Despite the fact that the solar panel might be creating almost enough current for your batteries, it might be quite ineffective once the sun rays quit achieving the surface of the panel.
To prevent this problem, solar trackersmechanisms are usually used with solar panels to ensure that the panels keep producing electrical power at the most effective rates during the day no matter the sun’s position in the sky.
This actually also allows the incorporation of fairly modest solar panels mainly because now the maximum voltage could be picked just near to the specific necessity and would not needs to be twice or thrice than the exact need.