Senior executives from Exelon Generation, Alstom, General Electric and Zachry officially broke ground on the construction of a new low-carbon, combined-cycle gas turbine (CCGT) at Exelon's Colorado Bend Generating Station in Wharton. The new CCGT will provide an additional 1,000 MW to the existing 498-MW natural gas power plant. The new unit at Colorado Bend is one of two new CCGTs the company is developing in Texas. The other 1,000-MW CCGT will be constructed at Exelon's existing Wolf Hollow Generating Station in Granbury, Texas, which is approximately 35 miles outside of Ft. Worth. Both units are expected to achieve commercial operation in 2017.