I want to design two sets of solar power generation system, known solar panels is 1000W, the effective sunshine time is 5 hours, the system voltage 24V.If my AC load is used at night, how many batteries do I need? I would like to ask the calculation method.If my AC load is used only during the day, how many batteries are needed? I would like to ask the calculation method.
Current x voltage is power, and then x time, is the total power, charging efficiency with your battery, 0.75 high. On the one hand is the use of hardware constraints, on the other hand is the proportion of the total capacity you use. T night time. During the day to use, calculate the power of your use of high peak power, compared to the power of the battery and the battery board, the simple is the current. Of course, the last question is to buy a few batteries: the two is enough. Not expensive.
If the power is less than 1000W, the battery is only used to buffer the smooth voltage, take the largest electrical current difference reference, such as I, the battery to meet I/E.
It is calculated: 5 hours x1000W x 24V, which is the largest power generation C; lead-acid battery voltage of 12 volts V, the charging efficiency is E, the use rate of R for T, the calculation of the battery capacity: C x E/ (VxTxR). Only in the daytime with words
