SOLAR PHOTOVOLTAIC SYSTEM
Ri - ON GRID TIED SOLAR PV SYSTEM
Also Known As: On-Grid, Utility-Interactive, Grid-Intertied, or Grid-Direct
Grid-tied systems are the most common type of solar PV system. Grid-tied systems are connected to the electrical grid, and allow residents of a building to use solar energy as well as electricity from the grid.
Grid-tied systems do not need to produce 100% of the electricity demand for a home or business. When there is no demand for energy, the solar panels send excess electricity back out into the grid for use elsewhere.
When a home or business is using energy, but the solar panels aren't producing enough energy (at night, or on a stormy day), electricity from the grid supplements or replaces electricity from the panels.
Ri - OFF GRID TIED SOLAR PV SYSTEM
Also Known As: Battery Stand Alone Backup Systems
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It is possible to install a solar system that is independent of the electrical grid. This is called an off-grid system, and it requires that the solar panels are able to produce enough electricity to cover 100% of the energy needs of the building.
Most homes have higher electricity demand in the evening or at night, so off-grid systems usually incorporate either a battery (to store energy produced during the day), a backup source of energy (like a generator), or both. Off-grid systems are more complex and less flexible than grid-tied systems.
Ri - ON/OFF GRID TIED HYBRID SOLAR PV SYSTEM
Also Known As: Battery Backup Systems/HYBRID
(combination of On and OFF Grid Tied
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Most homes have higher electricity demand in the evening or at night, so off-grid systems usually incorporate a battery (to store energy produced during the day), a backup source of energy (like a generator), or both.