The Ohio Power Siting Board (OPSB) on Sept. 22 authorized South Field Energy LLC to construct a 1,105-MW natural gas-fired, combined-cycle facility in Columbiana County.
The South Field Energy Generation Facility will be located on a 150-acre parcel in Yellow Creek Township. A new 3.9-mile, 345-kV transmission line and electrical switchyard, also authorized by the OPSB on Sept. 22, will deliver power from the generation facility to the regional electric grid. South Field Energy proposes to commence construction in January 2017 and begin commercial operation of the facility by January 2020.
This to be a dual-fuel combined-cycle facility designed in a 2×2 configuration. It will primarily fire natural gas, with the capability to fire ultra-low sulphur distillate (ULSD) as a back-up. It will utilize two integrated General Electric (GE) 7HA.02 combustion turbine generators, each with a dedicated supplementary-fired heat recovery steam generator; two steam generators and two mechanical draft wet cooling towers. The facility will have a nominal net output of 1,105 MW (full duct burner operation with inlet air cooling at 59 degrees Fahrenheit ambient temperature).
On Dec. 7, 2015, South Field Energy filed the application for this project at the board. South Field Energy is an affiliate of Advanced Power NA.
South Field was certified to construct, own, and operate a 3.9-mile, 345-kV transmission line and an electric switchyard, with the anticipation that ownership and operation of the switchyard would transfer to American Transmission Systems Inc. (ATSI). The transmission line and switchyard would be placed in service in December 2018. The switchyard would be located on a 38-acre parcel of land in Madison Township and have a footprint of roughly 3.5 acres. The switchyard would have a 345 kV ring bus interconnection substation with a loop connection to ATSI’s Highland-Sammis 345 kV line.