How does a solar panel system work
Solar energy works by transforming the sun’s energy into electricity that can be utilized to power your personal or commercial appliances. But how does this happen? Read ahead because we will be answering all your queries aboutsystem work in this blog.
The Sun, which is one of the main producers of electricity in the solar system, releases tiny packets of energy which are known as photons. They go all the way from the sun to the Earth and the number of photons released in one hour is enough to supply the world energy needs for one complete year.
So how exactly does this process take place?
Solar Panels are installed to fulfill this purpose. As soon as the photons reach a solar panel, they knock off the electrons from the atoms. The presence of conductors on the positive and negative sides of a cell generates an electrical circuit. When electrons flow through the electrical circuits, electricity is generated. Therefore, the more panels you put, the more electrons will be liberated and the more power will be generated. And this is how it goes.
How a solar panel system works
A solar panel comprises many solar cells wired in a certain method. Each cell has a relatively small output, often less than 0.5 volts, and a specific amount of current, typically 1 to 2 amps. The cells are wired in series until the desired panel voltage is attained, and then numerous strings are wired in parallel until the desired panel output current is reached. This is the power output of the panel in optimal lighting conditions. For example, if each cell output is 0.5 volts at 1.5 amps, then 48 cells may be placed in series, and five strings of 48 series cells are wired in parallel. The outcome is a panel of 240 cells whose output is 24 volts at 7.5 amps, resulting in a 180-Watt panel.
While a single panel may be used in remote applications to power a light or equivalent load, for ordinary power generation a collection of panels is linked together as an array. As with the wiring for solar cells, the panels are wired in series until the desired voltage is attained, and then numerous strings are wired in parallel until the desired output current, and hence power, is reached. For example, 20 of the panels in the preceding example (24 volts at 7.5 amps) may be wired in series as a single string, and then two strings can be wired in parallel. The result is an array of 40 panels whose output is 480 volts at 15 amps, resulting in a 7200-watt system – delivering the amount of power consumed by one average Arizona home.
The power from an array is then normally routed through an inverter, if necessary, and supplied into a building’s power panel, into the power grid, or into a backup system of batteries or other storage.
Solar panels absorb sunlight and convert it into direct current (DC) energy. This energy is sent to an inverter, which converts it to alternating current (AC) which flows through the home’s electrical panel powering any appliances with electricity. Any excess electricity produced by theis fed back to the electric grid.