Alan was a midfielder from Crumlin United, who was on trial in April 2004. He had played for Ireland at U-18 level.

He played a couple of games against Twyford Old Boys and a Representative side.

Born in Dublin, Alan Power started his professional  career with Nottingham Forest, two years after trialling at Exeter. He played once for Forest between 2006 to 2008.

He signed for Grays Athletic on loan in November 2007, but he returned to Forest in February 2008 having played in five games and scoring once in the Conference. 

In the summer of 2008, he signed for Hartlepool United, making 6 appearances for the league 2 side.

In 2010, Alan joined Rushden and Diamonds. He was released by Rushden in May 2011 after playing virtually every game that season.

In July 2011, Alan signed for Lincoln City and between then and 2017, he played over 250 games, becoming club captain, before joining Kilmarnock in the Summer of 2017.