AC Load Center: An AC Load Centre is somewhat like a panel board with all appropriate switches, fuses and circuit breakers that help maintain required AC voltage and current to corresponding loads. ![]() Transfer switches can be automatic or manual. For example if the solar system is backed up by a diesel generator, a transfer switch helps you to choose the source of electricity. A transfer switch helps you to switch between two sources of power. Transfer Switch: Whenever a backup generator is installed, a transfer switch must be installed.Modern generators can be configured to start automatically when the solar array and /or battery bank doesn’t provide sufficient power. By installing it, you are making sure that you are not solely dependent upon solar for your power requirements. Backup Generator: Even though a backup generator is not always required, it is a good device to add as it increases reliability as well as redundancy.Connected Load: Load ensures that the electrical circuit is complete, and the electricity can flow through.DC loads can be directly fed from the solar system and do not require an Inverter. This conversion takes place in real time with a very minimal time gap (nowadays inverter efficiency goes up to 98%). The electricity generated by Solar Systems is DC in nature while most of our household loads require AC power. DC-AC Inverter: A DC-AC solar inverter (or just a ‘solar inverter’) is a power electronics device which is used to convert Direct Current to Alternating Current.In order to provide electricity during these periods, excess energy, during day, is stored in these battery banks and is used to power loads whenever required. ![]() Evenings, nights and cloudy days are examples of such situations beyond our control. Battery Bank: There may be periods when there is no sunlight.The charge controller protects the battery bank from overcharging. As it determines the efficiency of the entire solar system as well as the operating life of the batteries, it is a critical component. Charge Controller: A charge controller determines how much current should be injected into the batteries for its most optimum performance.Whenever sunlight falls upon these panels, these generate electricity which feeds the batteries. PV Panel: This is used to convert solar energy to electrical energy.The following Picture shows the typical Off-grid solar system somponents: Off-grid solar system components Here are the functions of each solar system component: Off-Grid solar system components explained A backup Generator or a Backup Source of power.Optional components Off-Grid solar systemĭepending upon your needs, there may be other components that you require. ![]() For this system to work, you need a load connected to the batteries. Instead of a grid-tied solar inverter, you can use a standard power inverter or off-grid solar inverter to power your AC appliances. Components needed for an Off-Grid solar systemĪn Off-Grid solar system is slightly more complicated and needs the following additional components: A grid-tied solar system consists of the following components:įor this system to function well, you need a connection to the grid. Components needed for a grid-tied solar systemĮvery solar system needs similar components to start with. This article explains solar system components in detail. For a typical off-grid solar system you need solar panels, charge controller, batteries and an inverter.
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