TEHRAN, Jan. 16 (MNA) – Iran’s Deputy Energy Minister Mohammad Sadeghzadeh said Wed. that there are 2,000 small rooftop photovoltaic power station or rooftop PVs operating in rural areas and less-developed areas in the country, adding the number will increase to 5,000 by the end of this Iranian year of 1397 (ending on March 20, 2018).