Before purchasing a solar power generation system, everyone needs to first understand the components of the system. So let's first introduce that the entire system consists of a solar cell pack, a solar controller, and a battery (group). If the output power supply is AC 220V or 110V, an inverter needs to be configured. The functions of each part are:
(1) Solar panel: Converts the radiation capacity of the sun into electrical energy, or sends it to a battery for storage, or drives the load to work.
(2) Solar controller: The function of a solar controller is to control the working status of the entire system and provide overcharging and discharging protection for the battery. In places with large temperature differences, qualified controllers should also have temperature compensation function. Other additional functions such as light control switches and time control switches should be optional for the controller;
(3) Battery: Its function is to store the electrical energy emitted by the solar panel when there is light, and then release it when needed.
(4) Inverter: The direct output of solar energy is generally 12VDC, 24VDC, 48VDC, 110VDC, and 220VDC. In order to provide electrical energy to 110VAC, 220VAC, and 380VAC appliances, it is necessary to convert the direct current energy generated by the solar power generation system into alternating current energy. Therefore, a DC-AC inverter is required.
Factors to consider when purchasing a solar power generation system:
1. Where are solar power generation systems used? What is the solar radiation situation in the area?
2. What is the load power of the system?
3. What is the output voltage of the system, DC or AC?
4. How many hours does the system need to work per day?
5. If encountering cloudy and rainy weather without sunlight, how many days does the system need to be continuously powered?
6. What is the starting current for the load, pure resistive, capacitive, or inductive?
7. The quantity of system requirements.