The deal follows similar agreements with unions in June 2013 for civil workers, in addition to an agreement establishing the framework for industrial relations for the project.
The agreement, confirming pay and conditions of employment – including welfare and training – will apply to electrical and mechanical workers.
Vincent de Rivaz, EDF Energy chief executive, said: “This groundbreaking agreement reflects the importance that we place on partnerships with our employees and with trade unions to help deliver the UK’s first new nuclear power in a generation.”
Kevin Coyne , Unite national officer added “This agreement sets a new benchmark for pay, conditions and apprenticeships. It ensures there are at least 500 well paid apprenticeships on the project which is a massive opportunity for young people to get a skill for life.”