Off grid and grid energy storage photovoltaic power generation systems

　　Off grid photovoltaic power generation systems operate independently without relying on the power grid and are generally used in remote mountainous areas, areas without electricity, islands, communication base stations, and street lights. The system generally consists of photovoltaic modules, solar controllers, inverters, batteries, loads, etc. The off grid power generation system converts solar energy into electrical energy under illumination, and uses solar energy to control the inverter integrated machine to supply power to the load while charging the battery; When there is no light, the battery supplies power to the AC load through an inverter.

　　Grid connected energy storage photovoltaic power generation systems can store excess electricity and increase the proportion of spontaneous self use. The system consists of photovoltaic modules, solar controllers, batteries, grid connected inverters, current detection devices, loads, etc. When the solar power is less than the load power, the system is powered by both the solar energy and the grid. When the solar power is greater than the load power, a portion of the solar energy supplies power to the load, while another portion stores the unused electricity through the controller.

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