Distributed photovoltaic (PV) power generation systems refer to PV power generation facilities that use photovoltaic modules to directly convert solar energy into electrical energy. It is a new type of power generation and comprehensive energy utilization method with broad development prospects. It advocates the principles of local power generation, local grid connection, local conversion, and local use, which not only effectively increases the power generation of PV power plants of the same scale but also effectively solves the problems of power loss during voltage boosting and long-distance transmission.
The most widely used distributed photovoltaic (PV) power generation system is the rooftop PV project built in cities. These projects must be connected to the public power grid to supply electricity to nearby users. So, where are suitable locations to install distributed PV power generation systems?
1. Industrial plants: Especially in factories with high electricity consumption and high grid electricity prices, the roof area is usually large and flat, which is suitable for installing photovoltaic arrays. In addition, due to the large electricity load, distributed photovoltaic grid-connected systems can consume electricity locally and offset part of the grid-purchased electricity, thereby saving users' electricity bills.
2. Commercial buildings: Similar to industrial parks, but the difference is that commercial buildings mostly have cement roofs, which are more conducive to the installation of photovoltaic arrays. However, there are often requirements for the aesthetics of the building. According to the characteristics of service industries such as shopping malls, office buildings, hotels, conference centers, and resorts, the user load characteristics are generally higher during the day and lower at night, which can better match the characteristics of photovoltaic power generation.
3. Agricultural facilities: Rural areas have a large number of available rooftops, including private residential rooftops, vegetable greenhouses, fish ponds, etc. Rural areas are often at the end of the public power grid, resulting in poor power quality. Building distributed photovoltaic systems in rural areas can improve power supply security and power quality.
4. Municipal and other public buildings: Due to standardized management, relatively reliable user load and commercial behavior, and high enthusiasm for installation, municipal and other public buildings are also suitable for the centralized and contiguous construction of distributed photovoltaic systems.
5. Remote agricultural and pastoral areas and islands: Due to their distance from the power grid, there are still millions of people without electricity in remote agricultural and pastoral areas of provinces such as Tibet, Qinghai, Xinjiang, Inner Mongolia, Gansu, and Sichuan, as well as on coastal islands in my country. Off-grid photovoltaic systems or microgrid power generation systems that complement other energy sources are very suitable for application in these areas.
