Solar is a kind of renewable, and clean energy that has been implemented in different countries since ancient time. An application of solar energy is solar dryer, which is for drying the agricultural products, fruits and food products. Different kinds of solar dryers have been designed and manufactured in the past. Different factors are effective in the process of designing, constructing and using solar dryers in different regions. The purpose of this study is to identify the effective factors and risks which may impact on the use of solar dryers. In this research work, data for Yazd province in Iran was used for analysis. Factor Analysis (FA) methodology was performed using SPSS software; a questionnaire was designed to collect the data and finally the validity and the reliability of acquired data was investigated. Results of analysis reveal that there are six major factors and three risk types impacting the process of designing, constructing and implementation of solar dryer systems in the province.