Why does photovoltaic power generation need energy storage?

Celes
Celes Registered Users Posts: 12 ✭✭


1. photovoltaic power generation is divided into: off-grid and grid-connected. Photovoltaic module is just a power generation device, does not have the role of power storage, grid-connected is the PV module power directly to the grid, do not need energy storage.


2. due to the wind power, photovoltaic by the weather, has a great deal of instability, so the energy storage technology plays a vital role. There are views that the combination of wind and storage is likely to become the future development trend of new energy.


3. first of all, we look from a macro point of view, "photovoltaic" + "energy storage" can improve the stability of the power system and power consumption integrity. The future can break through the photovoltaic power generation accounted for no more than 25% of the total number of grid limitations of an important factor.


4. now there are many optional energy storage methods, such as capacitor energy storage, flywheel energy storage, superconducting energy storage, etc., but from the convenience, reliability, price and other factors to consider, most of the large and medium-sized photovoltaic power generation system uses maintenance-free lithium batteries as the system's energy storage device.

 

5. off-grid photovoltaic energy storage system is the photovoltaic power generation, energy storage system and inverter and other components of the photovoltaic energy storage off-grid system, which can be directly utilized photovoltaic modules to the battery charging, in order to meet the needs of the power load.

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