Heathrow Power Outage Caused by Preventable Fault, Investigation Finds
A fire at an electricity substation on 20 March led to major disruptions at Heathrow Airport, forcing its temporary closure and affecting over 200,000 travelers globally.
Europe’s busiest airport canceled more than 1,000 flights the day after the incident at the substation in Hayes, west London. Operations slowly resumed the following day, with full service restored by Sunday, though some delays persisted.
Criticism was directed at the airport’s chief executive, Thomas Woldbye, for going to bed while key decisions were left to the chief operating officer, Javier Echave, during the crisis.
Heidi Alexander, the UK’s transport secretary, stated she would have found it difficult to sleep in the same situation.
Report Blames Preventable Error, Regulator Begins Probe
An inquiry has determined that the fire resulted from a “preventable, technical fault,” prompting energy regulator Ofgem to launch an investigation into National Grid.
The failure occurred in a high-voltage component at the North Hyde substation, leading to the fire. Ofgem’s enforcement investigation will assess whether National Grid Electricity Transmission (NGET) adhered to legal and operational requirements in maintaining the site.
The National Energy System Operator’s final report noted that moisture entering the transformer’s components likely caused the electrical fault. Although signs of excess moisture were detected in 2018, corrective measures were not sufficiently pursued.
Additionally, Ofgem will conduct an independent audit of NGET’s key infrastructure to determine whether the issues were isolated or part of a broader problem.
Market Reactions to Trade Tensions
Meanwhile, Japanese shares declined after former U.S. President Donald Trump proposed imposing steep tariffs on Japanese imports, calling trade negotiations "very tough." The Nikkei index dropped 0.6% after recovering from steeper losses earlier in the session.
Investors remained focused on global trade policies and interest rate expectations, despite recent legislative developments in the U.S. Federal Reserve Chair Jerome Powell’s statements also influenced market sentiment.
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