Knoxville News Sentinel: The Kingston Fossil plant is running now at reduced capacity, as seen by its two huge primary stacks sitting idle while a smaller stack belches smoke Thursday, Sep. 30, 2010. Coal is under seige as an industry as utilities such as TVA, driven by tightening government regulations on emissions, are scaling back on the use of coal-fired power plants. Sunny days appear to be ahead for green energy in Tennessee, but the coal industry faces a future clouded by a number of issues such as …