Today, political crises, economic and sustainability issues such as restrictions on fossil fuels, environmental concerns, overpopulation, economic growth and fuel utilization of the issues that all thinking intellectuals and politicians in finding solutions to the environmental crisis solve the problems of energy in the world and especially is preoccupied. Due to the global energy crisis and the problems caused by the use of renewable energy, renewable energy use in various applications, has increased day by day.data .

It is expected that about 20 to 40 percent of renewable energy sources in 2050 and in 2100, a volume equivalent to 30 to 80 percent of primary energy needed to meet the world. In fact, renewable energy right now in many parts of the world as a source of clean and cheap energy for maintenance of equipment used in various fields and an alternative to conventional energy sources of fossil fuels have been used extensively. So that according to the latest studies in the German Aerospace Center (DLR) in 2050, more than 77% of electricity and 70% heat (including solar collectors, biomass and geothermal) required born from renewable sources and renewable power plants with a capacity of 9100 gigawatts will be totaled.
In our country, from around 1370, and planning efforts to identify potential renewable energy, especially solar energy and use more of them started. Iran due to exposure to solar radiation belts of the high potential of this God-given blessing is in operation. So that in 90% of the country over 300 days of sunshine are very effective. Below average annual solar radiation on different parts of the globe shown and Iran's position on this form is visible.

پتانسیل انرژی خورشیدی

The amount of solar radiation in different parts of Iran between 1800 and 2200 kilowatt-hours per square meter per year, which is estimated to be higher than the global average. The favorable potential of solar energy in many parts of the country, has provided fertile ground for the use of solar equipment. Chart annual average solar radiation in different parts of Iran also presented in the figure below.

The amount of solar radiation in different parts of Iran between 1800 and 2200 kilowatt-hours per square meter per year, which is estimated to be higher than the global average. The favorable potential of solar energy in many parts of the country, has provided fertile ground for the use of solar equipment.
Chart annual average solar radiation in different parts of Iran also presented in the figure below.

پتانسیل انرژی خورشیدی