Although solar energy is one of the most important renewable energies in Iran that most areas of the country, especially the Central Desert, have considerable ability to use, but the random nature of this type of energy makes it difficult to predict its output power and may cause problems in the performance of the feed systems. For this reason, the use of energy storage systems for periods of less production than consumption is necessary to balance production and consumption. There are various technologies for solar energy storage, but before using them in Iran it is necessary to examine the capacity of these technologies in Iranian companies and decide on their basis. Absorption capacity is a process that helps organizations and companies in different industries and services to recognize the knowledge or technology and to attract, transfer and exploit it and achieve competitive advantage. In this study, it is tried to investigate the absorption capacity of existing technologies for solar energy storage and to select higher priority transmission technology by Grey Relational Analysis.