In his first term as MP for Anglesey, Hughes placed considerable emphasis on attracting new jobs to the island. He was acutely aware that a large proportion of the young people were obliged to leave Anglesey to look for work, and Hughes was active in the process of securing the Wylfa nuclear power station and later an aluminium smelter project to be located on the island. Such efforts contributed to an increase in his majority to 4,568 at the 1955 General Election.