A major power cut across central London left thousands of properties without electricity for over an hour on Monday morning, prompting warnings of a “domino effect” of disruption for businesses. The outage, caused by a fault on an underground electricity cable, affected 32 postcodes, disrupting pharmacies, traffic signals, and train departure boards.
Power restored after morning outage
UK Power Networks said the fault developed on its underground network in the Shoreditch area at 10.30am. Power supplies were interrupted to several thousand properties, with engineers rerouting electricity in stages until 11.08am, when all were back on supply.
The affected postcodes spanned areas including E1, E2, E5, E8, E9, EC2, EC3, IG3, N1, N5, NW8, and W2. Transport for London confirmed that the power failure had impacted some CCTV and traffic signals in the area. Rail and bus services were operating as usual, though extra care was being taken. The Great Northern line was affected, with trains unable to stop at Essex Road as platform lighting cut off, while the departure board at Liverpool Street Station was cast in darkness.
Businesses face cascading impacts
Rebalance Earth, a nature investment company, has mapped the concentration of essential services whose electricity supplies are at risk from flooding. Gabriella Edghill, a geospatial analyst at the company, warned that widespread power loss could have “cascading impacts” across London’s businesses and infrastructure.
“Retail, hospitality, service businesses, even grocery stores... can end up just losing revenue from lost trading days or even lost stock,” Ms Edghill said. “In terms of supply chain disruption, that can also be a thing... all of this can kind of trigger a cascading effect downstream of the supply chain.” She added that consequences can extend beyond lost revenue: “Emergency lighting, fire alarms, ventilation systems, things like that can get disrupted and cause hazards.”
Rebalance Earth estimates more than 2,500 businesses across London are at risk from flooding affecting the power grid, with the potential financial cost reaching £14.6m a day. While its research focuses on flooding rather than power cuts caused by cable faults, its analysis highlights the potential economic exposure when electricity infrastructure fails.
Pharmacies and residents affected
Cynthia, who works at Apex Pharmacy on Essex Road, told The Standard that the outage would leave many patients without their prescriptions. The pharmacy usually orders the following day’s medication every morning, but the power cut meant staff were unable to use the pharmacy computer. As such, Cynthia said many customers will no longer be able to collect their prescriptions tomorrow. Cynthia, who lives in the area, said the outage also affected her home.
Business group BusinessLDN said the outage should serve as a warning over the importance of the capital’s energy resilience. Muniya Barua, deputy chief executive at BusinessLDN, said: “While it’s good to see that power was restored so quickly after this morning’s outage, the disruption it caused to firms and transport networks underlines the importance of reliable energy supplies to growth across the capital.”
“It’s vital that lessons are learned from this incident to mitigate the risks of future power cuts. Ensuring London’s electricity network is resilient is key to giving firms peace of mind and bolstering the capital’s reputation as the best place in the world to do business.”
