Thermal Power Project at Tiruvallur. As of July 2015, TANGEDCO has invited bids for Design, Manufacture Supply, Erection, Testing and Commissioning of Boiler, Turbine, Generator (BTG) package & its auxiliaries and allied civil works related to BTG on Engineering, Procurement and Construction (EPC) basis for the Establishment of 1x800 MW supercritical coal based power project stage III.