In December of 2004, the Charleston Alley Cats changed their name to the West Virginia Power and introduced their 5 new mascots, Axe, Gusty, Pyro, Hydro, and Charlie.
On April 14, 2005, the West Virginia Power moved into beautiful Appalachian Power Park in the East End of Charleston. With the new stadium, came a new affiliation for the newly named ball club from Charleston as the Power became a member of the Milwaukee Brewers organization.
The Power saw the future face of the Brewers in 2005 as soon to be MVP Ryan Braun donned a West Virginia uniform as well as future major league infielder Alcides Escobar. 2006 was no different for the Power as future major league outfielders Michael Brantley and Lorenzo Cain both posted batting averages over .300 en route to a 74-62 record for West Virginia. In 2007 and 2008, West Virginia saw incredible success as the Power took home the SAL Northern Division Championship, but fell in the championship series both years
.
In 2009, the Power became the class-A affiliate of the Pittsburgh Pirates. 2009 saw future outfield sensation Starling Marte at Appalachian Power Park and the first Pirate era Power player to make it to the big leagues in Chase d’Arnaud, who made his MLB debut in 2011.
The Power regained the Northern Division in 2013, but fell to the Hagerstown Suns in the opening round of the SAL Playoffs. On April 10, 2014, the Power celebrated their 10th Opening Day at Appalachian Power Park.