Nuclear energy chiefs have unveiled an Emergency Response Centre at Sizewell in Suffolk.
The £180 million project will become fully operational in March.
It will enable operators to control the station remotely, in the event of a major emergency.
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A chilly evening but cloud thickening with outbreaks of rain spreading from the west after midnight. Lows of 2 deg C (36 deg F).
Crews are working against the clock this weekend to repair damaged bridges over the A47 in King's Lynn.
Hybrid Air Vehicles said the aircraft has now been stabilised and made completely safe to work on.