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What is a solar system?
2023-10-21 10:25According to the needs of different application scenarios, PV power generation system can be categorized into three types: PV grid-connected system, PV grid-connected energy storage system, and PV off-grid system.
Green and clean energy is the trend of the future, are you torn hesitation, do not know whether it is suitable for your family, the next article will provide you with a detailed introduction to these three different types of solar energy systems.
Different types of solar energy systems
There are three main types of solar systems: grid-tied, hybrid and off-grid. Each type of solar panel system has its pros and cons, and it really boils down to what the customer wants to get out of the solar system that is installed.
1. On-grid solar system
Main components: solar modules, grid-connected inverter, load and grid.
Working logic: DC power from solar panels is converted into AC power by inverter and sent to the power grid.
Application Scenario: Large ground power station, medium-sized industrial and commercial power station and small household power station.
Advantage: No need to use batteries, saving costs; from the investment point of view, the excess electricity can be sold to the power company for revenue.
But the biggest disadvantage of this type of solar system is that because it uses a grid-tied inverter, when the national grid fails or there is a blackout, your home will have no electricity. But don't worry, you can always add storage batteries to your system to cope with such a crisis, this is known as a hybrid system
2. Hybrid solar system
Main components: solar modules, batteries, grid-connected storage inverter, load and grid.
Working logic: when solar power is greater than load power, part of solar power will be converted to AC power through inverter to supply power to the load, and the rest of inverter will store the power to the battery; when solar power can not meet the needs of the load, the inverter will convert the power stored in the battery to supply the load to ensure the continuity and stability of the whole system.
Application Scenario: It is applied in the application places where PV self-generation and self-consumption can't be carried out with residual internet access, the price of self-consumption electricity is higher than the price of internet access electricity, and the price of wave peak electricity is more expensive than the price of wave leveling electricity, and so on.
Advantage: When the light is strong during the day and the electricity consumption is not high, it can store the excess power generation and increase the proportion of self-generation and self-consumption, and it can upgrade the batteries at any time and replace the large-capacity batteries to cope with your electricity demand, which is extremely flexible.
3.Off-grid solar system
Main components: solar module, off-grid inverter, battery, load.
Work logic: independent operation without relying on the power grid, converting DC power into household AC power to supply power to the load and charging the battery pack at the same time when there is light; when there is no light, the battery will supply power to the AC load through the inverter.
Application Scenario: Widely used in remote mountainous areas, powerless areas, islands, communication base stations and street lights and other application places, mainly used in areas without power grid or frequent power outages.
Advantage: not subject to geographical restrictions, not dependent on the power grid, wide range of use, as long as there is sunshine can be installed where the use of off-grid energy storage system. Off-grid solar systems can provide power even in the most remote locations. With an off-grid solar system, you can achieve energy self-sufficiency and access to electricity wherever you decide to live.
Unlike grid-tied solar systems, off-grid systems are no longer connected to the national grid. For those who cannot easily connect to the grid, off-grid solar systems can be used in
grid, off-grid solar systems make it easy to become self-sufficient and energy independent, and no longer suffer from lack of electricity.
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