London Power Cut: 32 Postcodes Hit by Major Outage Today

Zainab Kashif • October 5, 2026 • World
london power cut

A major London power cut affected 32 postcodes on Monday, October 5, leaving thousands of homes and businesses without electricity. The outage also caused disruption across parts of London’s rail network. Several commuters faced problems as station lighting and information systems were affected.

London power cut affects 32 postcodes

The power outage began at around 10:30 am on Monday. It affected areas across parts of east and north London. The disruption also reached the City of London and areas around Islington, Hackney and Westminster. UK Power Networks confirmed that an underground electricity cable fault caused the outage. Engineers were sent to local substations to investigate the problem. The company worked to identify the fault and restore electricity to affected properties. The London power cut affected thousands of properties and businesses across the affected postcodes. The outage was not limited to one local street or small area.

Residents and businesses faced a temporary loss of electricity. The disruption also created problems for transport services in the capital.

Rail services face disruption

The power outage also affected train services in London. Liverpool Street was among the locations affected by the disruption. Commuters reported blank information boards at the station. Essex Road station also faced problems. Some platforms lost lighting because of the electricity outage. Great Northern said its services would not stop at Essex Road during the disruption. The company advised passengers to use other nearby stations. Passengers were directed towards Old Street or Highbury & Islington. They were also advised to allow extra time for their journeys. The disruption added further difficulties for commuters travelling through affected parts of north London.

Engineers work to restore electricity

UK Power Networks said engineers were being sent to local substations. Their teams worked to assess the network and locate the source of the problem. The company then worked on restoring supplies to affected customers. At the time of the reported outage, UK Power Networks expected electricity supplies to return between midday and 1pm. That estimate covered homes, businesses and affected transport facilities. However, restoration times can vary depending on the fault and repair work required. Residents in affected areas were advised to follow updates from the electricity network operator.

What caused the London outage?

The reported cause was an underground electricity cable fault. Such faults can interrupt electricity supplies across connected areas. The impact can become wider when several properties rely on the same network infrastructure. In this case, the fault affected 32 postcodes across parts of London. The disruption also showed how electricity faults can affect public transport. Station lighting and passenger information systems depend on reliable power supplies. The outage therefore affected both local properties and commuters.

London residents face temporary disruption

The london power cut created disruption for residents, businesses and commuters across the affected areas. People without electricity can face problems with lighting, heating, communications and electronic equipment. Businesses can also experience interruptions when power supplies stop. Transport passengers faced additional challenges because of the impact on station facilities. UK Power Networks continued working to restore supplies as quickly as possible. The company had targeted the midday to 1pm period for restoration. The outage highlights the importance of quick repairs when faults affect busy parts of London.

Further updates depend on the progress of repair teams and the condition of the affected electricity network.

IESCO also announced power outages in Islamabad on October 2.