The Tennessee Valley Authority (TVA) and DuPont partnered to generate power and steam at TVA's Johnsonville site in Humphreys County, Tenn. The two companies recently agreed on a plan to convert an existing, limited-use combustion turbine at Johnsonville into a highly efficient combined heat and power, or CHP, plant. With TVA retiring the last four coal-fired units at Johnsonville by the end of 2017 under its clean-air agreement with the Environmental Protection Agency, a new steam source had to be found. The new, more efficient, 87-MW, gas-fired CHP facility will serve to generate power as needed for TVA customers as well as steam for DuPont's manufacturing operations when it comes online in January 2018.
