Meanwhile, GNER was forced to cancel all services between Inverness, Aberdeen, Dundee, Glasgow, Edinburgh and the north east of England, Yorkshire and London's King's Cross after the wind and snow brought down overhead lines in the Borders.
The gap between the pantograph, which is the arm on top of the train car that draws power from overhead lines, and the catenary system must remain within a precise distance and tension.
The project will generate enough electricity to power 4, 500 homes annually and connect to the national grid via existing overhead lines.
The upgrade of outdated overhead power lines between London Liverpool Street and Chelmsford is set to be completed by May 2017.
The combination of being less of an eyesore and producing less electrical smog should, TenneT hopes, soften objections to the construction of new overhead power lines.
The utility plans to install stronger power lines and cut nearby trees in areas outside of Manhattan, including the installation of 30 miles of new overhead lines.
The report concluded that such technologies cost about 10 times that of overhead power lines, although another European study says that the rise in costs is about half that.
Armed escorts lead the way along the former front lines, and attack helicopters keep watch overhead.
Still, while underground lines suffer a third of the outages as overhead ones, they take twice as long to repair.
So will under-grounding of overhead lines, and an overall look at hardening the infrastructure.
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Network Rail is replacing overhead power lines installed 30 years ago, reducing the number of delays and cancellations caused by faults.
The broken down train's equipment for picking up power from overhead lines was faulty, a Greater Anglia spokesman said.
But going underground is an expensive proposition: The direct costs are much more than those associated with traditional overhead power lines.
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