Solar power generation system is divided into the off grid power generation system and the grid connected power generation system:
Photovoltaic power generation system
1, off grid power generation system. Mainly by the solar cell module, controller, storage battery, if you want to load power supply, but also need to configure AC inverter.
2, grid connected power generation system is the solar power generation system through the grid connected inverter to meet the requirements of the power grid after the direct access to public power grid. Grid connected power generation system has centralized large grid connected power station is generally a national power plant, the main feature is that the power generation can be directly delivered to the grid, the power grid unified deployment to the user. But this power plant investment, construction period is long, the area is large, the development is more difficult. And decentralized small grid connected power generation system, especially photovoltaic building integrated power generation system, due to the small investment, construction fast, small area, policy support and other advantages, is the mainstream of grid connected power generation system.