Coal's share of power has declined from nearly 60% in 2008 to about 25% in 2018, while natural gas has increased significantly.
[3] After Watts Bar Unit 2 began operation in late 2016, nuclear power passed coal as the top source of electricity.
[4] In November 2018 natural gas produced more power than coal for the first time in Tennessee.
[5] Tennessee is home to the third largest pumped-storage hydroelectric facility in the US, and has the third highest net generation of hydroelectric power of states east of the Mississippi River, and eighth highest nationwide.
In addition much of the power generated at TVA's Browns Ferry Nuclear Plant in Limestone County, Alabama is distributed to Tennessee.