The Prime Minister has officially opened the world's biggest offshore windfarm.
The London Array covers 245 square kilometres and is situated 12 miles off the Essex coast. It's hoped it will bring jobs to the East.
The official opening comes on the same day that a new £11m energy sector training centre is set to be built in Great Yarmouth.
Click below to watch a report from ITV News Anglia's Malcolm Robertson
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The Met Office has issued a yellow cold weather alert and there's the risk of snow in places later on Boxing Day.
Mostly dry and bright, but chilly. Frost tonight.
Most places will see bright or sunny spells through the day, but with a few showers around, especially during the morning.