What are Photovoltaic Systems?
Photovoltaic systems utilize a collection of solar cells to create electricity for use in a variety of capacities. The process converts sunlight or ultraviolet radiation into energy. The system uses a number of solar cells packaged into modules and connected to a capacitor to store the direct current (DC) power and distribute it to devices or components that need powered. The way a photovoltaic system works is simply by harnessing the photons from sunlight and allowing them to impact electrons. This event creates a higher state of energy which builds an electrical charge. The base part of the system is a photodiode, which is also the primary collector of the photons. There are two main forms of photovoltaic systems: standalone and hybrid. Standalone systems are not connected to any external power source. The energy that is collected is stored on-site and used to power an individual device. This can vary from small garden lights to spacecraft. Hybrid systems are photovoltaic systems tha
Solar Photovoltaic modules generate power when exposed to sunlight. This power can be harnessed in several ways – depending on how the electricity has to be used. Typically we can have 2 types of systems : 1). Grid Tied Systems 2). Off Grid (Standalone) Systems Depending on the requirement, the modules are typically connected to a battery via a charge controller – that regulates the amount of charge on the battery and prevents discharging. The power now obtained from the charged batter is in the form of Direct Current – DC – (Mostly used in standalone systems) which can be converted to Alternating Current – AC – Mostly used in Grid Tied Systems) by an Inverter.
By: Pv systems convert sun directly to electricity. Unlike solar thermal systems, photovoltaic systems change sun directly to electricity. Different than solar thermal systems for heating water, Photovoltaic does not use the sun’s heat to produce electricity. Instead, electrons freed by become the interaction of sun with semiconductor materials in Photovoltaic cells are caught in an electric current. Pv lets you produce electricity with no sound or air pollution from a clean, renewable resource. A Pv system never runs out of fuel, and it will not augment oil imports. Many Pv system components are manufactured in North America. These characteristics may produce Photovoltaic technology become the energy source of choice for this century. The basic building block of Pv technology is the solar cell. Multiple Photovoltaic cells are connected to form a Pv module, become the smallest Photovoltaic component for sale commercially. Modules vary in power output from roughly 10 watts to 300 watts.
