Solar system by solar batteries, solar controllers, batteries (Group). If the power output for the exchange of 220 V or 110 V, also need to configure inverter. 。 The role of various parts: (a) of solar panels: solar panels is the solar system in the central part, but also solar power systems in some of the highest value.  Its role is to the sun's radiation into electricity capacity, or sent to the storage battery, or promote the work load.  (B) solar controller: solar controller role is to control the entire system of state and played a rechargeable battery protection, the role of the discharge protection. In the larger temperature difference between the local, qualified controllers should also have the function of temperature compensation. Other additional features such as photo-controlled switch, when the control switch is the controller should be optional, (3) batteries: General for lead-acid batteries, small micro-system, can also be used nickel-hydrogen batteries, nickel-cadmium batteries or lithium batteries.  Its role is in a light will be solar panels issued by the Energy stored, the time needed to re-release.  (D) inverter: solar energy output are generally a direct 12 VDC, 24VDC, 48VDC. In order to the 220 VAC to provide electrical power, need to solar power systems can be issued by the DC power into the exchange, the need to use the DC-AC inverter.
 Solar power generation system design factors to be considered:
 1, the solar system where the  The Solar Radiation and how »
？ 2, the power load much »
3, the output voltage is the amount of DC or exchange »
 4, the system need to work how  5, such as solar radiation are not the rainy weather, the continuous power supply system required number of days »
 6, the case load, pure resistive, capacitive, or emotional, how much starting current »
 7, the number of system requirements.