Technical fault at power substation causes blackout in east Tehran

A technical malfunction at an electrical substation caused a partial power outage in the eastern part of Tehran on Wednesday evening, leaving thousands of residents without electricity for several hours.

• The power outage affected multiple neighborhoods in east Tehran starting at 6:45 p.m. local time
• Electricity was restored to most affected areas by 11:30 p.m. the same evening
• The Technical and Engineering Organization of Iran's power distribution company identified a transformer failure as the root cause
• Power company officials said the substation equipment had been operating beyond its designed capacity. While state media emphasized the swift response of technical teams, private sector engineers noted that aging infrastructure in Tehran's eastern districts continues to pose recurring risks to the city's power supply stability.

# Technical Incident at Power Substation; Cause of Partial East Tehran Blackout