Photovoltaic power generation is a technology that uses the photovoltaic effect of semiconductor interfaces to convert light energy directly into electrical energy. It is mainly composed of semiconductor materials, photodiodes and photoelectric effect.
Solar panels are made of semiconductor material silicon, silicon has a high band gap (2.1 eV), electrons can flow freely in it, so semiconductor materials are called "ideal conductors".

The main structures of solar panels are:

1. Photovoltaic panels: made of silicon materials.
2. Solar panels: solar cells made of silicon materials.
3. Solar controller: The main function is to control the operation of the whole system, to ensure that the solar panel can work normally under the condition of insufficient light, and to ensure the maximum power generation of the system.
4. Battery: After the solar panel works for a period of time, there will be electrical energy released for battery charging.

Photovoltaic power generation system is mainly composed of solar cell module, controller, battery pack, DC distribution box (or inverter), DC cable, AC distribution box (or inverter), etc.Solar cell module: It is the core of solar power generation, which converts solar energy into electrical energy.

Controller: is to ensure the stable operation of the system core components, its role is to detect and control the working state of the battery and solar cell modules, so that it charges the battery at the most appropriate time to ensure that the system can continue to operate stably.

• Battery pack is the energy storage equipment of photovoltaic power generation system. When photovoltaic module generates electricity, it converts DC into AC and stores it. When load needs electricity, it will release the stored energy.
• DC distribution box is equipment that supplies power to loads.
• Photovoltaic modules: mainly solar radiation energy directly converted into electrical components.
• photovoltaic array: the solar cell module generated by the collection of electrical energy, through the DC cable to the load.
• battery pack: to charge the battery, while protecting the battery.

Controller: converts the DC power provided by the battery into AC power that meets the user's requirements, and can control the working state of the DC circuit.

Solar cells are devices that use sunlight (including sunlight) to generate electricity. Its basic structure is to connect solar cells in series and parallel to form an array. Under the sun's irradiation, solar energy is converted into electricity for human use.
There are many types of solar cells, which can be divided into crystalline silicon solar cells and amorphous silicon solar cells according to their constituent materials; photoelectric effect solar cells, photoconductive solar cells and photomultiplier solar cells according to their working principle; constant voltage type, constant current type, bipolar and sinusoidal type according to their output characteristics.

The solar cell module is composed of several solar cells of the same or different shapes and size connected in series or in parallel to maximize the power output of the solar cell panel. As a basic component of solar power generation system, the quality of solar cell module directly affects the efficiency and service life of the whole solar power generation system. Main performance parameters: power (PV), voltage (Vcc), current (Im), efficiency (η), light attenuation (Ls), etc. In addition, the following aspects should be noted in the design, production and installation of solar modules:

Solar controller is the control core of solar photovoltaic system. Its main role is to provide stable DC power to solar photovoltaic systems to ensure that the system works stably in the best state. The performance of solar controller will directly affect the success or failure of the whole system. The direct current input from the photovoltaic panel to the battery, through the storage and release of the battery pack, and then to the output of the solar panel, needs to be regulated and controlled by the controller. In the absence of light and at night, to charge the battery; in the daytime when the sun is sufficient, to discharge the photovoltaic panel output to ensure the normal operation of the system.

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• Residential Solar Panels
• Solar energy storage cabinet price