Little knowledge about photovoltaic power generation

Created on 2025.12.18

Photovoltaic power generation has the advantages of being clean, unlimited, not subject to geographical restrictions, and requires little operation and maintenance. Therefore, it has obvious advantages over nuclear power, biomass energy and other renewable energy sources. Types of photovoltaic power generation and their characteristics:

Off-grid photovoltaic power generation

Off-grid photovoltaic power generation systems are widely used in remote mountainous areas, areas without electricity, islands, communication base stations, street lights and other places. The off-grid solar power generation system uses solar panels to convert solar energy into electrical energy when there is sunlight, and supplies power to the load through the solar charge and discharge controller while charging the battery; on rainy days or when there is no light, the battery pack supplies power to the DC load through the solar charge and discharge controller. At the same time, the battery can also directly power the independent inverter, which is inverted into AC power through the independent inverter to power the AC load.

Grid-connected photovoltaic power generation

The grid-connected photovoltaic power generation system is composed of a photovoltaic cell array and a grid-connected inverter. It directly inputs electric energy into the public grid through the grid-connected inverter without storing energy in the battery. Compared with off-grid photovoltaic power generation systems, grid-connected photovoltaic power generation systems save

The process of battery energy storage and release reduces energy consumption, saves floor space, and reduces configuration costs.

Distributed photovoltaic power generation Distributed photovoltaic power generation refers to photovoltaic power generation facilities built near the user's site. The operating mode is characterized by self-use on the user side and grid-connected surplus power, which is balanced and regulated by the power distribution system. The distributed photovoltaic power generation system consists of a solar cell array, a combiner box, and a grid-connected inverter. , AC power distribution cabinet, the generated power is given priority to self-use, and the generated surplus power is directly input into the AC power distribution cabinet through the grid-connected inverter, and is integrated into the corresponding power voltage through the relevant grid-connected equipment. On rainy days or when there is no light, the mode of power supply from the grid is automatically switched, reflecting the demand for environmentally friendly green power.