For many reasons Bangladeshi people are now using renewable energy. So, solar energy is the best renewable energy till now, in respect of Bangladesh. So using of solar system is common nowadays. Bangladesh Government has taken some steps to make solar system compulsory. In this paper we discussed about importance of solar home system for domestic application. Here we will also discuss a safety device of solar home system. This paper also focused safety device with a practical experiment. We implement a low voltage alert circuit and low voltage indicator circuit for better performance of solar home system. Keyword-Smart Solar Home System (SSHS), Rooftop, Safety Device, Low voltage alert.2012 14th International Conference on Modelling and Simulation 978-0-7695-4682-7/12 $26.00