What is the difference between a grid-tied inverter and an off-grid inverter?
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Working Principle and Application
- Grid-tied inverter:
● Converts direct current (DC) to alternating current (AC) and connects it to the public grid. It is able to seamlessly inject the DC generated by renewable energy generation systems (such as solar photovoltaic panels or wind turbines) into the public grid. The microprocessor in the grid-tied inverter can sense the AC waveform of the grid and generate voltage based on this waveform to send back to the grid.
● Usually 240V RMS at 50Hz or 120V RMS at 60Hz. They are used between generators: hydroelectric generators, solar panels, grids, and wind turbines.
- Off-grid inverter:
● Also known as a stand-alone inverter, it operates independently of the public grid. It is mainly used in conjunction with off-grid power generation systems, such as solar power systems or wind power systems. An off-grid solar system is a 100% self-sufficient energy system.
● The main function of an off-grid inverter is to convert the DC power generated by a DC power source (such as a solar panel) into AC power for use in homes or devices in an off-grid environment.
Cost and efficiency
- Grid-connected inverter:
● The system has high power and relatively low cost. Because the grid-connected inverter can directly inject power into the grid without the need for additional energy storage and transmission equipment.
● Efficient use of renewable energy, reducing carbon emissions and reducing energy consumption.
- Off-grid inverter:
● The cost may be higher due to the need for additional energy storage systems and more complex control systems.
● However, for remote areas or scenarios where access to the grid is not possible, the high efficiency of off-grid inverters in power conversion and self-sufficient energy systems make them an ideal choice for these areas.
ZK off-grid solar inverter is an efficient energy solution designed for off-grid environments! It is independent of the power grid and converts DC power into AC power, providing stable power for homes and devices in remote areas or without access to the power grid. With high efficiency and high reliability, it is an ideal choice for your self-sufficient energy system!
Off-grid/grid-connected hybrid solar inverters
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