Prime Minister David Cameron said: "As part of our plan to help Britain succeed, after months of negotiation, today we have a deal for the first nuclear power station in a generation to be built in Britain.
"This deal means £16 billion of investment coming into the country and the creation of 25,000 jobs, which is brilliant news for the South West and for the country as a whole.
"As we compete in the tough global race, this underlines the confidence there is in Britain and makes clear that we are very much open for business.
"This also marks the next generation of nuclear power in Britain, which has an important part to play in contributing to our future energy needs and our longer term security of supply".
More top news
Which? put in a 'super-complaint' after finding firms exaggerate discounts with dodgy multi-buys, shrinking products and baffling offers.
The Queen celebrates her 89th birthday today - but will she get to share it with her new great-grandchild?
Phil Rudd also pleaded guilty to possessing crystal meth and marijuana in a New Zealand court.