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Should I install a home solar power generation system on-grid or off-grid? solar street light-lit

by:Litel Technology     2022-05-22
You can have your own solar power station by installing photovoltaic solar panels on your roof, but many customers are still confused when choosing to install a home solar power system. Whether to install a solar photovoltaic power generation grid-connected or off-grid system, do you need it? battery? A solar photovoltaic power station grid-connected system is a power generation system that must be connected to the public power grid and must rely on the existing power grid to operate. It is mainly composed of photovoltaic solar power generation panels and inverters. The photovoltaic solar power generation panels are directly converted into 220V by the inverter AC power supplies power to household appliances. When the power generation of the rooftop solar power station exceeds the power used by household appliances, the excess electricity is sent to the public grid; and when the power generation of the solar photovoltaic power generation system cannot meet the use of household appliances, it will automatically replenished from the grid. And this whole process is intelligently controlled and does not require manual operation. The grid-connected system of solar photovoltaic power stations does not need to use batteries, which greatly saves costs. In particular, the new grid-connection policy that has been issued by the state has clearly stated that as long as home solar power stations generate electricity, there will be state subsidies and free access to the grid. Excess electricity can also be sold to power companies. From the long-term perspective of investment, according to the 25-year service life of the home solar power station, the cost can be recovered in about 6-10 years, and the remaining ten years are earned. Therefore, if you want to save electricity expenses and provide convenient power supply, you should choose a grid-connected home solar photovoltaic power generation system, which is also the current mainstream method. The off-grid solar photovoltaic power generation system is also called an independent photovoltaic solar power station. It is a power generation system that operates independently without relying on the power grid. The electricity generated by the photovoltaic solar panel directly flows into the battery and is stored. When it is necessary to supply power to the electrical appliance, the DC current in the battery is converted into 220V AC by the inverter, which is a repetitive cycle of charge and discharge. The solar photovoltaic power generation off-grid system is widely used because it is not restricted by geographical areas. It can be installed and used as long as there is sunlight, so it is very suitable for remote areas without power grids, isolated islands, fishing boats, outdoor breeding bases, etc. It can also be used as a Emergency power generation equipment in areas with frequent power outages. The solar photovoltaic power generation off-grid system must be equipped with a battery, and it occupies 30-50% of the cost of the power generation system. However, it is very practical for families in areas without power grids or areas with frequent power outages. Especially in order to solve the lighting problem during a power outage, DC energy-saving lamps can be used, which is very practical. Therefore, the off-grid solar power generation system is specially designed for use in areas without power grids or areas with frequent power outages. Simply put: the grid-connected system of a solar photovoltaic power station does not require a battery, and the off-grid system requires a battery. To learn more about distributed photovoltaic power stations, please call our hotline!
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