St. Joseph Energy Center is a 700-megawatt natural gas-fired, 2×1 combined-cycle plant that provides clean, efficient energy for more than 400,000 households and interconnects to the PJM energy market.

Kiewit engineered, procured and constructed this plant, featuring two Siemens SGT6-5000F combustion turbine generators, two Nooter-Eriksen heat-recovery steam generators and a Siemens SST6-5000 steam turbine generator with wet cooling.