Figuring out solar battery requirements is a bit complex because the needs vary from one household to another. What follows is a simplified process. Total solar array output / battery voltage = battery amps required A 10kw solar system produces 40kw a day, or 40,000 watts. Divide the wattage by the battery voltage. The calculations given above are straightforward enough. But it assumes that you want to store all the power your 10kw system produces in a day. If you only want to store the excess solar energy produced, subtract the extra amount from the total output. In a perfect world, a 10kw solar system will produce 10kw a day and 1000kw a month. But there are several factors that affect output, the most. If you only want to store the reserve energy, the capacities given above will be enough. But if you end up using the excess energy, the battery discharge becomes important. Suppose you have 3 x 100 48V batteries to store the extra power produced by your. The typical American home uses 900kw a month, so a 10kw system should be enough. Assuming 5 hours of sunlight a day, this system can produce 30kw to 40kw or more than 1000kw a month. Of course you need to consider the factors stated earlier. Some.
