CHARLESTON â Appalachian Power and Wheeling Power failed to meet minimum targets approved by West Virginia state utility regulators for the reliability of their electric power systems in 2020, according to an annual reliability report that regulators require utilities to file. The two subsidiaries of American Electric Power improved in measures of how long and often their power was interrupted last year compared to 2019 but still had worse numbers than they did before they moved in 2014 to a vegetation management system intended to boost reliability, according to the filing with the state Public Service Commission. The results continue a trend of longer and more frequent outages for Appalachian Power and Wheeling Power customers since 2013 that has outpaced national increases in those categories.