In message , Jack Taylor
writes

"Matthew Malthouse" wrote in message
. ..

"The Tube will now get all its electricity from the National Grid. But
in the event of National Grid failure, Lots Roads smaller sister
station at Greenwich, equipped with quick start gas turbines, will be
used for emergency power and SPL has installed battery lighting at all
stations to provide emergency lighting."

Define 'emergency power'. For trains, for lighting? Looks like a suitably
vague statement to allow them to interpret it however they want.

Although the quoted press statement is vague, the contract would have
spelled out the detail and the contractors (SEEBoard PowerLink) are
clear enough on their website:

... generating units at Powerlink's Emergency Power Station
providing power for essential pumps, deep lifts and escalators.

No mention of providing traction current (which Greenwich could once do,
but only on a very limited scale - never enough to power the entire
system on its own).

--
Paul Terry