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What is PV + Energy Storage?

Ⅰ. what are PV and energy storage?


1. What is energy storage?


Energy storage mainly refers to the storage of electrical energy. Energy storage itself is not a new technology, but from the perspective of the photovoltaic industry, it is just emerging and in the infancy stage.


The United States and Japan regard energy storage as an independent industry and issue special support policies, but China has not reached that stage so far. Especially in the absence of a payment mechanism for energy storage, the commercialization model of the energy storage industry has not yet taken shape.


2. What is photovoltaic?


Photovoltaic is short for solar photovoltaic system. It is a new power generation system that uses the photovoltaic effect of solar cell semiconductor materials to directly convert the solar radiation energy into electricity. There are independent operation and network operation.


At the same time, solar photovoltaic power generation system can be classified into the centralized type, such as the large ground photovoltaic power generation system in the northwest, and the distributed type (with >6MW as the boundary), such as the rooftop photovoltaic power generation system for industrial and commercial enterprises and residential buildings.


3. What is PV + energy storage?


The combination of photovoltaic power generation and battery energy storage is PV + energy storage.


Ⅱ. What are the advantages of PV + energy storage?


1. Power output is smoother:


Photovoltaic power generation is a process of converting solar energy into electric energy. Its output power is greatly affected by environmental factors such as solar radiation intensity and temperature. In addition, since photovoltaic power output is DC current, it needs to be converted into AC power by an inverter and then connected to the power grid, and harmonics will be generated in the inverter process.


Due to the instability of PV power and the existence of harmonics, PV power access will impact the power grid. Therefore, an important purpose of energy storage in grid-connected PV power generation system is to smooth photovoltaic power output and improve the quality of photovoltaic power.


2. Independent PV energy storage system:


Compared with the grid-connected photovoltaic system, the independent photovoltaic system refers to the independent operation of the photovoltaic system without access to the power grid. At present, the independent systems widely used are solar street lamps, solar mobile power supply, etc. Their photovoltaic power generation output and load power consumption are not in the same time period. The installation location is not restricted as long as there is sunshine.


Solarborn is committed to developing the photovoltaic industry. Solarborn optimizes the traditional power generation system based on new energy, and improves the traditional power generation form of the industry through innovative ideas and technological innovation. Welcome to consult.

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