Optimization of Stand Alone Solar Home System with Battery

Photovoltaic (PV) technology is currently very developed and is increasingly accessible to the wider community. The energy savings offered through home-scale solar power generation systems have good appeal. This paper analyzes the error optimization in sizing stand alone solar home system with batteries. There are five main components to analyze including the selection of PV modules, protection systems, batteries, battery cables, and voltage drops in the distribution system. Sizing the solar home system is by considering the trend of the daily load curve, solar irradiation data, and solar home system losses. The utilization of solar home systems was validated using a prototype with capacity of 100 Wp, equipped with a system that can accurately measure parameters on both the DC and AC sides. The monitoring system was developed in a LabVIEW environment with a timescale of one second and showed accuracy of 97.2%.