Under the Technical Support Alliance 3 (TSA3) agreement, the engineering consultancy will provide operational support to the UK reactor fleet for at least the next five years.
Amec Foster Wheeler expects the contract, which follows the previous partnership frameworks of TSA1 and TSA2, to generate annual revenues of up to £30 million.
The firm says its deep technical knowledge and unique capabilities will ensure nuclear safety, efficiency and return on investment.
Stuart Crooks, EDF Energy’s Managing Director of Generation, said: “Amec Foster Wheeler has worked in partnership with EDF Energy for a number of years and shares our vision for zero harm, exceptional nuclear safety performance and world record breaking results.
“The support of all our strategic partners is an important factor as we continue to operate our nuclear stations to the highest standards, providing secure, low carbon, affordable power for the UK.”
EDF Energy saw a 29% slump in profits in its UK operations last year.