Explaining The Photovoltaic Systems

The technical term for solar power systems is Photovoltaic Systems or PV systems. The word “photovoltaic” is derived from two words: “photo,” which means “light,” and “volt,” a measurement of electric power. In simplest terms, a photovoltaic system is a configuration that collects energy from sunlight and turns it into electric power. Here is a simple explanation of the process.

PV systems begin with a means of gathering the energy from sunlight. This is usually achieved using solar panels that are made to take in the sun’s energy once exposed to the sun’s rays. Most solar cells today are efficient enough that they don’t have to have direct sunlight to gather energy (although they obviously are most effective in times of direct sun); they can even gather some energy on cloudy days.

Once the solar cells collect the energy from the sunlight, the photovoltaic system converts that energy into electricity, which can be used immediately or stored for future use. PV systems are examples of standalone systems which stores unused energy in electric batteries. At present, homes and business establishments utilizing solar energy can remain connected with the local power grid because their PV system can be tied to it. This set up helps eliminate the need for storage batteries because the local power grid can serve as storage for any unused energy that is sent by your PV system. In this kind of set-up, your electric company deducts a certain amount from your monthly electrical bill in recognition to the electricity that you are feeding to the power grid.

Although photovoltaic systems are eco-friendly, it is fairly obvious that there will be days when you will be able to gather excessive amounts of energy and some days when you can hardly gather some energy. In standalone systems, especially, there is often a need to hybridize the system-in other words, to include an alternate power source for those rare occasions when the solar cells aren’t gathering enough energy to match the usage. Usually, the alternative power sources of standalone systems can come in the form of a diesel generator or biogas. For individuals who are keen on helping save the environment, another alternate source of power is the wind. For the typical home or business user, though, the alternate energy source is simply the local power company. Because most consumer PV systems are tied to the power grid, the home or business simply starts drawing from the power grid when the system is not producing enough solar energy.

Hopefully, this short discussion will help you better understand the function of the photovoltaic systems. While these systems rely on the amount of daylight available, adaptations can be made to make solar energy a reliable energy source.