Solar energy is the most unique renewable energy source in the world and is the main source of all energy on Earth. Solar energy can be converted into other forms of energy directly and indirectly. In general, the energy given off by the sun about 3. 8 two 1023 kW per second. In the present study, the potential of solar energy in the province of surveillance data 9 synoptic stations located in the province during the monthly period (2014-2000) to create a database has been used. The data used are: (average temperature, average minimum temperature, average maximum temperature, average minimum humidity, sundial, cloudiness). Data on solar radiation measured during the period 2002-2007 Khorramabad stations for modeling and use the results to estimate the monthly radiation. Seasonal other parts of the province were used and Isocluster method in GIS environment was used for zoning radiation areas in the province. The results showed that July and summer, most of the radiation reaching the Earth's surface have found Stations Aligudarz, Kuhdasht and Poldokhtar always have high numbers of incoming radiation, but due to high temperature in two stations Poldokhtar and  Kuhdasht can be said that the station Aligudarz have the best conditions to install solar cells in the rest of the province