There have been schedule revisions during the PJM Interconnection review process on a SunCoke Energy project to build a coking plant in eastern Kentucky, with waste heat from the coking process used to generate 80 MW.
PJM has posted to its website a September 2015 updated study on the interconnection process for this project. SunCoke Energy South Shore LLC proposes to install PJM queue project #X4-025, an 80-MW (gross) facility comprised of one 90-MW steam turbine generator connecting to the American Electric Power Millbrook Park station via a customer built/owned 138 kV generator lead.
SunCoke wants to build a multi-oven (over 100) coke facility and will use the waste heat to power the steam turbine. The proposed project will be located on the Ohio River on US Route 23 between Johnson Lane and KY Route 2538, two miles East of South Shore, in Greenup County, Kentucky.
In the updated study, the date for the project to receive back feed from AEP has been pushed back from June 15, 2017, to Oct. 15, 2018. Other revised target dates include:
- Engineering Start – was Nov. 15, 2015, now Jan. 15, 2017;
- Material Ordered – was Feb. 1, 2016, now April 3, 2017;
- Construction Start – was June 1, 2016, now Aug. 2, 2017;
- Outage (Cut-In & Testing) – was April 15, 2017, and May 31, 2017, now Sept. 1, 2018, and Oct. 15, 2018.
The Kentucky State Board on Electric Generation and Transmission Siting on Feb. 20 approved an application from SunCoke Energy South Shore for a certificate to construct a merchant generating facility and a 138-kV non-regulated transmission line. The coke plant facility would be located on approximately 250 acres in an area that is primarily industrial near the Ohio River. The coke plant would bake metallurgical coal and annually produce 831,100 tons of coke and coke breeze, which will be sold to integrated steel makers for iron production. Approximately 982,000 tons of met coal will be used annually.
The proposed coke plant facility contains 120 heat-recovery coke ovens, coal charging, coke pushing and handling equipment, a quench tower, coke storage facilities, various administrative and support buildings, associated air pollution control equipment consisting of a flue gas desulfurization system, and a final stack to emit the desulfurized flue gas. The waste heat produced by the coking process is to be converted to steam by the heat-recovery steam generators. The steam is then transferred to the merchant generating facility’s steam turbine generator (STG) to produce electricity.
The proposed generating facility would have a nominally rated capacity at 90 MW. However, due to the batch process of the coke plant, the typical nominal power production is expected to vary in the 40-MW-to-80-MW range, as the steam supply varies.
The power will be transmitted via the proposed 138-kV transmission line to American Electric Power’s Millbrook Park substation, which is located approximately one mile north in New Boston, Scioto County, Ohio, which is on the other side of the Ohio River. Approximately 0.7 miles of the proposed transmission line will be located in Kentucky, traversing only property owned by SunCoke and also the Ohio River.
The capital investment for the project will be approximately $450m.