What is distributed photovoltaic power generation?
Distributed photovoltaic power generation systems consist of solar panels, a device that converts solar radiation into electrical energy. It consists of multiple thin layers or sheets of semiconductor material. When sunlight shines on a solar power panel, photons are absorbed and electrons are released, creating a direct current. Such a solar panel can be integrated on the roof, façade, utility or ground support of a building.
Distributed photovoltaic power systems also include inverters, grid connections, and a distribution system connected to the electronic load. The inverter is the device that converts the DC power generated by the solar panels into AC power. The grid connection, on the other hand, connects the power generation system to the existing electricity network, allowing excess power to be injected into the public grid or to obtain power from the grid to meet deficient demand. The distribution system is responsible for distributing the electricity generated by the power generation system to buildings or equipment for use. In this way, the distributed PV system can provide a reliable, low-cost supply of electricity to customers.
The advantages of distributed photovoltaic power generation are mainly reflected in the following aspects:
1.Renewable and environmental friendly: Solar energy is a renewable energy source, and distributed PV power generation systems use solar energy to generate electricity without depleting natural resources or producing harmful gases and pollutants such as carbon dioxide, which is friendly to the environment.
2. High flexibility: Distributed photovoltaic power generation systems can be designed and installed according to various needs and scenarios, and can be expanded to projects of various scales, such as residential, commercial buildings and public facilities. The scale of the system can be flexibly adjusted according to the power demand.
3. Reduce energy costs: With distributed PV systems, users can generate electricity directly at the point of use, reducing transmission losses and the need for grid expansion. In addition, solar energy is a free source of energy, so distributed PV can reduce energy costs for customers in the long run.
4. Enhance qualitative: Distributed PV power generation system can discrete the excess power and power network, reducing the load pressure on power lines and improving the reliability and stability of the grid.
5. Adapt to disaster periods: Distributed photovoltaic power generation systems can operate independently and are not dependent on external power supplies, so in times of disaster, such as natural disasters or power outages, these systems can provide basic power needs for local residents.
But there are advantages while there are bound to be some bad places exist, such as solar power generation depends on weather conditions, such as cloud cover and cloudy days will affect the efficiency of photovoltaic cells, resulting in lower power generation; PV modules and inverters and other equipment relatively high cost, although the cost has been gradually reduced under technological progress and market competition, but for most people may still be on the high side; power storage needs: distributed photovoltaic systems produce electricity usually need to be used at any time or injected into the grid, for long-term energy storage also need further technological innovation and solutions.
Distributed photovoltaic (PV) power generation is a system that uses solar energy to generate electricity with the advantages of being renewable, environmentally friendly, and highly flexible. It can provide reliable power supply to buildings and equipment, and inject into the grid to balance supply and demand and improve grid stability. It has the potential to be widely used in various scenarios, such as residential and commercial buildings and rural areas. With technological advancement and market promotion, distributed PV will play an important role in energy transition and sustainable development
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