All the institutions are serviced by the same electric grid company, ISNA specified.
Earlier this week, dozens of activists demonstrated at a rally in Tehran against the power cuts amid water shortages that began seven days ago in the country's southwest, where at least four people were reportedly killed.
It is Iran's worst drought in 50 years. According to an Iranian water supply and sanitation company, out of 304 cities in the country that are suffering a water crisis, 101 cities are in the "red zone," which means they are experiencing an acute shortage of water.