In this paper, several companies Photovoltaic[PV] to estimate the capacity of the battery were compared. Each company's estimating methods of the battery capacity were analyzed about strengths and weaknesses. Assuming that PV 1[kW] were household load. The difference of the battery capacity were quantitatively analyzed through formula to calculate battery capacity.
First, the school grade saeromgwan 1[kW] solar cells on the roof was installed.
Second, when weather conditions were reflected in views on the physical characteristics of solar cells optimized for implementing PV simulator, and residential load patterns and power rating of the power consumption of the electrical load modeling was performed.
Third, the electronic model of the load and PV system based on the stable development in a stand-alone solar power systems in the affected batteries were presented to the best existing capacity is being used to analyze differences between the methods.
Fourth, Source and 3[kW], fixed to the load after load the common household used in the proposed formula appropriately parameter estimation of the battery capacity was optimal. Condition also called solar home systems, such as when, many companies use when calculating the battery capacity and also about the difference between the proposed capacity was analyzed.
The results of this study is important from the stand-alone solar power systems for battery capacity factor to be considered logic verification methodology for calculating the best designed and energy to the battery capacity by offering a stand-alone systems to be used as guidelines to calculate the battery capacity is expected to also reduce the battery volume and prices are expected to be greater effectiveness exposition.