Last month EDF chief executive Vincent de Rivaz energy and climate change committee Hinkley Point would definitely go ahead with the final decision due early next month.
But it emerged late on Friday that the French Government, which own 85% of EDF, has delayed the decision yet again, setting a new date for September.
The latest delay is calling into question whether Hinkley Point builders will be able to deliver the massive nuclear power station scheme by 2025.
Angus MacNeil, chairman of the Energy and Climate Change Committee, said: “When EDF appeared before us in March, company bosses were insisting that a decision would be made in May.
“At that hearing we said that we would call them back in if that timetable slipped again and that’s what we are doing now.
“If Hinkley does not go ahead it could have huge implications for our future energy security and efforts to cut climate-changing emissions.
“We will therefore be watching progress on this closely. If we have to see EDF back here in September as well, we will.”
The next hearing is expected to take place in late May.
