Types of photovoltaic power generation

1. Independent photovoltaic power generation

Independent photovoltaic power generation is also called off-grid photovoltaic power generation. It is mainly composed of solar cell components, controllers, batteries. If you want to supply power to the AC load, you also need to configure an AC inverter. Independent photovoltaic power plants include power supply systems for villages in remote areas, solar household power systems, communication signal power supplies, cathodic protection, solar street lights, other photovoltaic power generation systems with batteries that can operate independently.

2. grid-connected photovoltaic power generation

Grid-connected photovoltaic power generation means that the direct current generated by solar modules is converted into alternating current that meets the requirements of the mains grid by a grid-connected inverter then directly connected to the public grid. It can be divided into grid-connected power generation systems with without batteries.

The grid-connected power generation system with storage battery is schedulable can be merged into out of the power grid as required. It also has the function of backup power supply, which can provide emergency power when the power grid is out of power. Photovoltaic grid-connected power generation systems with batteries are often installed in residential buildings; grid-connected power generation systems without batteries do have the functions of dispatchability backup power, are generally installed on larger systems.

Grid-connected photovoltaic power generation has centralized large-scale grid-connected photovoltaic power stations, which are generally national power stations. The main feature is that the generated energy is directly transmitted to the grid, the grid is uniformly deployed to supply power to users. However, this kind of power station has a large investment, a long construction period, a large area, it has developed much yet. Distributed small grid-connected photovoltaics, especially photovoltaic building-integrated photovoltaic power generation, are the mainstream of grid-connected photovoltaic power generation due to the advantages of small investment, fast construction, small footprint, large policy support.

3.distributed photovoltaic power generation

Distributed photovoltaic power generation system, also known as distributed power generation distributed energy supply, refers to the configuration of a smaller photovoltaic power supply system at the user site close to the power site to meet the needs of specific users support the economics of the existing distribution network Run, meet both requirements at the same time