Solar panels and solar energy storage configuration calculation and household batteries

Solar panel and battery configuration calculation formula one: first to calculate the current: such as: the 12 v battery system; 2 only 30 w lamp, a total of 60 w. Present current = 60 w 12 v = 5 a 2: calculate the battery capacity requirements: such as: the street lamp lighting of accumulative total of every night time need 7 hours to full load

calculate the configuration of the solar panels and batteries formula 1: first of all, the calculation of current: for example, the 12 v battery system; There are 2 30 w lamp, a total of 60 w. Present current = 60 w 12 v = 5 a second, calculation of battery capacity requirements: for example, in full load, the accumulative total of street lamp lighting time need for 7 hours each night. ( For example, in the afternoon 7:00 open, in the afternoon 12:30 closed route 1, 5 in the morning: 30 open line 2, and 6 in the morning: 30 closed route) Five consecutive rainy days need to satisfy the lighting. ( 5 days and rainy days the night before the lighting, for 6 days) Battery = 5 a x 7 h * ( 5 + 1) Days = 5 a * 42 h = 210 ah in addition, in order to prevent the battery overcharge and over discharge, battery charging to around 90%; The remaining emissions of about 20%. So real standard in the application of 210 ah is around 70%. 3. Calculate panels peak demand value: the accumulative total of street lamp lighting time need for 7 hours each night hours ( h) ； Solar panels of daily average effective illumination time is 4. 5 hours ( h) ； Panels to reserve at least 20% of the amount of demand will be relaxed. Work stress present 17. 4 v = ( 5 a * 7 hours * 120%) ÷4. Present 17 when 5 watts. 4 v = 9. 33 working pressure = 162 watts related tags: solar panels, solar panels, solar panel manufacturers