An electricity supply failure between Stevenage and Finsbury Park on September 18, 2026, resulted in significant disruption to rail services operating in and out of London King’s Cross. This fault affected multiple operators including Great Northern, Grand Central, Hull Trains, LNER, Lumo, and Thameslink.
Affected Routes, Cancellations and Ticket Changes
Train services between Stevenage and London King’s Cross faced cancellations, alterations, and delays. National Rail reported at 6:30 a.m. BST that disruption was expected to continue until midday. Due to the electricity fault, services between King’s Lynn and London King’s Cross operated only between King’s Lynn and Cambridge. Great Northern ran a reduced peak service from
Peterborough to London, and limited service was in place on routes between Hertford North and Moorgate. Passengers travelling from Cambridge could use tickets on Thameslink, Great Northern, and Greater Anglia services to stations such as London King’s Cross, St Pancras International, and London Liverpool Street.
Passenger Impact and Operational Adjustments
Passengers travelling on affected routes through London King’s Cross experienced cancellations and delays, particularly on trains running between Stevenage and London. Some services were truncated or rerouted. Operators advised passengers to verify the status of their journeys and ticket validity before travel. Great Northern’s reduction of services impacted routes between Cambridge and London as well
as peak-time services from Peterborough to the capital. LNER trains also reported delays and cancellations on routes connecting London King’s Cross and Peterborough.
Official Statements and Recovery Efforts
Network Rail and electricity suppliers were actively working to resolve the fault causing the disruption. National Rail issued advisories indicating that services between King’s Lynn and London King’s Cross would operate only as far as Cambridge during the disruption. They also confirmed Great Northern’s operation of a reduced peak-time service from Peterborough to London. LNER passengers were advised to confirm ticket acceptance on alternative services while the electricity fault was addressed.
