Distributed photovoltaic power generation refers to photovoltaic power generation facilities built near the user's site, whose operation mode is characterized by spontaneous self-consumption on the user side, excess electricity on the Internet, and balance adjustment in the power distribution system.
Distributed photovoltaic power generation specifically refers to a distributed power generation system that uses photovoltaic modules to directly convert solar energy into electrical energy. It is a new type of power generation and comprehensive utilization of energy with broad development prospects. Distributed photovoltaic power generation has the following characteristics:
The output power is relatively small
Generally speaking, the capacity of a distributed photovoltaic power generation project is within several kilowatts. Unlike centralized power plants, the size of photovoltaic power plants has little impact on power generation efficiency, so the impact on its economy is also small, and the ROI rate of small photovoltaic systems is not lower than that of large ones.
Low pollution and outstanding environmental protection benefits
Distributed photovoltaic power generation projects have no noise and pollution to air and water during the power generation process.
Relieve the local electricity shortage to a certain extent
However, the energy density of distributed photovoltaic power generation is relatively low, and the power rate of the distributed photovoltaic power generation system per square meter is only about 100 watts. In addition, the roof area of the building suitable for installing photovoltaic modules is limited, which cannot fundamentally solve the problem of electricity shortage.
It can coexist with electricity for power generation
The power generation of large ground power stations is boosted and connected to the transmission network, and only operates as a power generation station; while distributed photovoltaic power generation is connected to the distribution network, where power generation and electricity coexist, and it is required to be consumed locally as much as possible.
Distributed photovoltaic power generation follows the principles of adapting measures to local conditions, clean and efficient, decentralized layout, and nearby utilization, making full use of local solar energy resources, and replacing and reducing fossil energy consumption. Installing distributed photovoltaic power generation has the following advantages:
1: Solar energy is inexhaustible. The solar radiation energy received by the earth's surface can meet 10,000 times the global energy demand! As long as solar photovoltaic systems are installed on 4% of the world's deserts, the electricity generated can meet the needs of the world!
2: Solar power generation is safe and reliable and will not be affected by the energy crisis or the instability of the fuel market.
3: Solar energy can be used everywhere and can be powered nearby without long-distance transmission, avoiding the loss of long-distance transmission lines; the sun does not use fuel, and the operating cost is very low.
4: Solar power generation has no moving parts, is not easy to be damaged, and maintenance cost is low. It is especially suitable for unattended use.
5: Solar power generation will not produce any pollution, noise and other public hazards, and has no adverse impact on the environment. It is an ideal clean energy source.
6: The construction period of the solar power generation systemis short, convenient and flexible, and the solar array capacity can be arbitrarily added or reduced according to the increase or decrease of the load to avoid waste.
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