NRI (Niroo Research Institute) of Iran, started its activities in 1997.It has played a leading role in developing new technologies for Electric Power Industry ever since. NRI is the major research organization affiliated to the Ministry of Energy of Iran. NRI is performing the dual task of meeting the present and future demands of electric power industry, while making a better use of available resources, preserving the environmental andachieve its objectives. The main building and laboratories of this institute are located in the north-west of Tehran, in a block of land with about 140,000sqm area. Research activities are carried out in 6 various research centers, consisting of 18 technical research departments, using the facilities of 9 advanced laboratories.